Abstract

Hexagonal NaYF4 nanocrystals (NCs) have been prepared by core-mediated hetero-shell growth process using polyvinylpyrrolidone (PVP) as chelating agents and cubic CaF2 as core. It is found that the NaYF4 NCs prepared by this strategy have narrow size distribution, small particle size and well water-soluble property, can be easily dispersed in water. Besides, by increasing the doping concentration of Tm3+ ions in Er3+-Yb3+ codoping system, the upconversion (UC) liminescence of CaF2@NaYF4: Yb/Er/Tm NCs was modulated from green to red by the naked eye. These NCs with red upconversion luminescence (UCL) and good water solubility show potential applications in biological labeling field.

© 2015 Optical Society of America

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    [Crossref] [PubMed]
  3. D. Chen and P. Huang, “Highly intense upconversion luminescence in Yb/Er:NaGdF4@NaYF4 core-shell nanocrystals with complete shell enclosure of the core,” Dalton Trans. 43(29), 11299–11304 (2014).
    [Crossref] [PubMed]
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  5. X. Xue, M. Liao, R. Tiwari, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Intense ultraviolet and blue upconverison emissions in Tb3+/Yb3+ codoped KY3F10 nanocrystals,” Appl. Phys. Express 5(9), 092601 (2012).
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    [Crossref]
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    [Crossref] [PubMed]
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    [Crossref] [PubMed]
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    [Crossref]
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    [Crossref]
  17. M. Liu, Y. Ye, C. Yao, W. Zhao, and X. Huang, “Mn2+-doped NaYF4:Yb/Er upconversion nanoparticles with amplified electrogenerated chemiluminescence for tumor biomarker detection,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6626–6633 (2014).
    [Crossref]
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    [Crossref]
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    [Crossref]
  20. W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
    [Crossref] [PubMed]
  21. G. Li, M. Shang, D. Geng, D. Yang, C. Peng, Z. Cheng, and J. Lin, “Multiform La2O3:Yb3+/Er3+/Tm3+ submicro-/microcrystals derived by hydrothermal process: morphology control and tunable upconversion luminescence properties,” CrystEngComm 14(6), 2100–2111 (2012).
    [Crossref]
  22. J. Li, L. Yang, Y. Zhang, J. Zhong, C. Q. Sun, and P. K. Chu, “Pump-power tunable white upconversion emission in lanthanide-doped hexagonal NaYF4 nanorods,” Opt. Mater. 33(6), 882–887 (2011).
    [Crossref]
  23. C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
    [Crossref]
  24. D. Chen, Y. Wang, K. Zheng, T. Guo, and Y. Yu, “Bright upconversion white light emission in transparent glass ceramic embedding Tm3+/Er3+/Yb3+: beta-YF3 nanocrystals,” Appl. Phys. Lett. 92, 1903 (2007).
  25. Q. Dou, N. M. Idris, and Y. Zhang, “Sandwich-structured upconversion nanoparticles with tunable color for multiplexed cell labeling,” Biomaterials 34(6), 1722–1731 (2013).
    [Crossref] [PubMed]
  26. K. Prorok, A. Bednarkiewicz, B. Cichy, A. Gnach, M. Misiak, M. Sobczyk, and W. Strek, “The impact of shell host (NaYF₄/CaF₂) and shell deposition methods on the up-conversion enhancement in Tb³⁺, Yb³⁺ codoped colloidal α-NaYF₄ core-shell nanoparticles,” Nanoscale 6(3), 1855–1864 (2014).
    [Crossref] [PubMed]
  27. N. J. J. Johnson and F. C. J. M. van Veggel, “Sodium lanthanide fluoride core-shell nanocrystals: a general perspective on epitaxial shell growth,” Nano Res. 6(8), 547–561 (2013).
    [Crossref]
  28. D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
    [Crossref]
  29. D. Gao, X. Zhang, H. Zheng, P. Shi, L. Li, and Y. Ling, “Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods,” Dalton Trans. 42(5), 1834–1841 (2013).
    [Crossref] [PubMed]
  30. D. Gao, X. Zhang, and J. Zhang, “The effects of structural characterization on the luminescence of Eu3+-doped fluoride nano/microcrystals,” CrystEngComm 16(48), 11115–11121 (2014).
    [Crossref]
  31. W. Yu, W. Xu, H. Song, and S. Zhang, “Temperature-dependent upconversion luminescence and dynamics of NaYF4:Yb3+/Er3+ nanocrystals: influence of particle size and crystalline phase,” Dalton Trans. 43(16), 6139–6147 (2014).
    [Crossref] [PubMed]
  32. S. Song, Y. Kuang, J. Liu, Q. Yang, L. Luo, and X. Sun, “Separation and phase transition investigation of Yb3+/Er3+ co-doped NaYF4 nanoparticles,” Dalton Trans. 42(37), 13315–13318 (2013).
    [Crossref] [PubMed]
  33. M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
    [Crossref] [PubMed]
  34. C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
    [Crossref] [PubMed]
  35. L. Lei, D. Chen, J. Xu, R. Zhang, and Y. Wang, “Highly intensified upconversion luminescence of Ca2+ -doped Yb/Er:NaGdF4 nanocrystals prepared by a solvothermal route,” Chem. Asian J. 9(3), 728–733 (2014).
    [Crossref] [PubMed]
  36. L. Lei, D. Chen, P. Huang, J. Xu, R. Zhang, and Y. Wang, “Modifying the size and uniformity of upconversion Yb/Er:NaGdF4 nanocrystals through alkaline-earth doping,” Nanoscale 5(22), 11298–11305 (2013).
    [Crossref] [PubMed]

2015 (4)

G. Chen, H. Ågren, T. Y. Ohulchanskyy, and P. N. Prasad, “Light upconverting core-shell nanostructures: nanophotonic control for emerging applications,” Chem. Soc. Rev. 44(6), 1680–1713 (2015).
[Crossref] [PubMed]

M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
[Crossref] [PubMed]

A. Sedlmeier and H. H. Gorris, “Surface modification and characterization of photon-upconverting nanoparticles for bioanalytical applications,” Chem. Soc. Rev. 44(6), 1526–1560 (2015).
[Crossref] [PubMed]

X. Liu, R. Deng, Y. Zhang, Y. Wang, H. Chang, L. Huang, and X. Liu, “Probing the nature of upconversion nanocrystals: instrumentation matters,” Chem. Soc. Rev. 44(6), 1479–1508 (2015).
[Crossref] [PubMed]

2014 (10)

D. Chen and P. Huang, “Highly intense upconversion luminescence in Yb/Er:NaGdF4@NaYF4 core-shell nanocrystals with complete shell enclosure of the core,” Dalton Trans. 43(29), 11299–11304 (2014).
[Crossref] [PubMed]

L. Lei, D. Chen, J. Xu, R. Zhang, and Y. Wang, “Highly intensified upconversion luminescence of Ca2+ -doped Yb/Er:NaGdF4 nanocrystals prepared by a solvothermal route,” Chem. Asian J. 9(3), 728–733 (2014).
[Crossref] [PubMed]

D. Gao, X. Zhang, and J. Zhang, “The effects of structural characterization on the luminescence of Eu3+-doped fluoride nano/microcrystals,” CrystEngComm 16(48), 11115–11121 (2014).
[Crossref]

W. Yu, W. Xu, H. Song, and S. Zhang, “Temperature-dependent upconversion luminescence and dynamics of NaYF4:Yb3+/Er3+ nanocrystals: influence of particle size and crystalline phase,” Dalton Trans. 43(16), 6139–6147 (2014).
[Crossref] [PubMed]

K. Prorok, A. Bednarkiewicz, B. Cichy, A. Gnach, M. Misiak, M. Sobczyk, and W. Strek, “The impact of shell host (NaYF₄/CaF₂) and shell deposition methods on the up-conversion enhancement in Tb³⁺, Yb³⁺ codoped colloidal α-NaYF₄ core-shell nanoparticles,” Nanoscale 6(3), 1855–1864 (2014).
[Crossref] [PubMed]

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

H. Wang, W. Lu, T. Zeng, Z. Yi, L. Rao, H. Liu, and S. Zeng, “Multi-functional NaErF4:Yb nanorods: enhanced red upconversion emission, in vitro cell, in vivo X-ray, and T2-weighted magnetic resonance imaging,” Nanoscale 6(5), 2855–2860 (2014).
[Crossref] [PubMed]

M. Liu, Y. Ye, C. Yao, W. Zhao, and X. Huang, “Mn2+-doped NaYF4:Yb/Er upconversion nanoparticles with amplified electrogenerated chemiluminescence for tumor biomarker detection,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6626–6633 (2014).
[Crossref]

L. Rao, W. Lu, T. Zeng, Z. Yi, H. Wang, H. Liu, and S. Zeng, “Sub-10 nm BaLaF5: Mn/Yb/Er nanoprobes for dual-modal synergistic in vivo upconversion luminescence and X-ray bioimaging,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6527–6533 (2014).
[Crossref]

2013 (12)

Z. Bai, M. Fujii, K. Imakita, and S. Hayashi, “Green to red tunable upconversion fluorescence from Bi–Er–Yb codoped zeolites,” Microporous Mesoporous Mater. 173, 43–46 (2013).
[Crossref]

Q. Dou, N. M. Idris, and Y. Zhang, “Sandwich-structured upconversion nanoparticles with tunable color for multiplexed cell labeling,” Biomaterials 34(6), 1722–1731 (2013).
[Crossref] [PubMed]

H. Fu, G. Yang, S. Gai, N. Niu, F. He, J. Xu, and P. Yang, “Color-tunable and enhanced luminescence of well-defined sodium scandium fluoride nanocrystals,” Dalton Trans. 42(22), 7863–7870 (2013).
[Crossref] [PubMed]

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

Y. Liu, D. Tu, H. Zhu, and X. Chen, “Lanthanide-doped luminescent nanoprobes: controlled synthesis, optical spectroscopy, and bioapplications,” Chem. Soc. Rev. 42(16), 6924–6958 (2013).
[Crossref] [PubMed]

D. Gao, X. Zhang, H. Zheng, P. Shi, L. Li, and Y. Ling, “Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods,” Dalton Trans. 42(5), 1834–1841 (2013).
[Crossref] [PubMed]

N. J. J. Johnson and F. C. J. M. van Veggel, “Sodium lanthanide fluoride core-shell nanocrystals: a general perspective on epitaxial shell growth,” Nano Res. 6(8), 547–561 (2013).
[Crossref]

S. Song, Y. Kuang, J. Liu, Q. Yang, L. Luo, and X. Sun, “Separation and phase transition investigation of Yb3+/Er3+ co-doped NaYF4 nanoparticles,” Dalton Trans. 42(37), 13315–13318 (2013).
[Crossref] [PubMed]

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

L. Lei, D. Chen, P. Huang, J. Xu, R. Zhang, and Y. Wang, “Modifying the size and uniformity of upconversion Yb/Er:NaGdF4 nanocrystals through alkaline-earth doping,” Nanoscale 5(22), 11298–11305 (2013).
[Crossref] [PubMed]

X. Xue, S. Uechi, R. N. Tiwari, Z. Duan, M. Liao, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Size-dependent upconversion luminescence and quenching mechanism of LiYF4: Er3+/Yb3+ nanocrystals with oleate ligand adsorbed,” Opt. Mater. Express 3(7), 989–999 (2013).
[Crossref]

C. Zhang and J. Y. Lee, “Prevalence of anisotropic shell growth in rare earth core-shell upconversion nanocrystals,” ACS Nano 7(5), 4393–4402 (2013).
[Crossref] [PubMed]

2012 (5)

X. Xue, M. Liao, R. Tiwari, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Intense ultraviolet and blue upconverison emissions in Tb3+/Yb3+ codoped KY3F10 nanocrystals,” Appl. Phys. Express 5(9), 092601 (2012).
[Crossref]

X. Xue, Z. Duan, T. Suzuki, R. N. Tiwari, M. Yoshimura, and Y. Ohishi, “Luminescence properties of α-NaYF4:Nd3+ nanocrystals dispersed in liquid: local field effect investigation,” J. Phys. Chem. C 116(42), 22545–22551 (2012).
[Crossref]

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

G. Li, M. Shang, D. Geng, D. Yang, C. Peng, Z. Cheng, and J. Lin, “Multiform La2O3:Yb3+/Er3+/Tm3+ submicro-/microcrystals derived by hydrothermal process: morphology control and tunable upconversion luminescence properties,” CrystEngComm 14(6), 2100–2111 (2012).
[Crossref]

2011 (3)

J. Li, L. Yang, Y. Zhang, J. Zhong, C. Q. Sun, and P. K. Chu, “Pump-power tunable white upconversion emission in lanthanide-doped hexagonal NaYF4 nanorods,” Opt. Mater. 33(6), 882–887 (2011).
[Crossref]

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

Z. Li, L. Wang, Z. Wang, X. Liu, and Y. Xiong, “Modification of NaYF4:Yb,Er@SiO2 nanoparticles with gold nanocrystals for tunable green-to-red upconversion emissions,” J. Phys. Chem. C 115(8), 3291–3296 (2011).
[Crossref]

2007 (2)

D. Chen, Y. Wang, K. Zheng, T. Guo, and Y. Yu, “Bright upconversion white light emission in transparent glass ceramic embedding Tm3+/Er3+/Yb3+: beta-YF3 nanocrystals,” Appl. Phys. Lett. 92, 1903 (2007).

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Ågren, H.

G. Chen, H. Ågren, T. Y. Ohulchanskyy, and P. N. Prasad, “Light upconverting core-shell nanostructures: nanophotonic control for emerging applications,” Chem. Soc. Rev. 44(6), 1680–1713 (2015).
[Crossref] [PubMed]

Bai, X.

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Bai, Z.

Z. Bai, M. Fujii, K. Imakita, and S. Hayashi, “Green to red tunable upconversion fluorescence from Bi–Er–Yb codoped zeolites,” Microporous Mesoporous Mater. 173, 43–46 (2013).
[Crossref]

Bednarkiewicz, A.

K. Prorok, A. Bednarkiewicz, B. Cichy, A. Gnach, M. Misiak, M. Sobczyk, and W. Strek, “The impact of shell host (NaYF₄/CaF₂) and shell deposition methods on the up-conversion enhancement in Tb³⁺, Yb³⁺ codoped colloidal α-NaYF₄ core-shell nanoparticles,” Nanoscale 6(3), 1855–1864 (2014).
[Crossref] [PubMed]

Chang, H.

X. Liu, R. Deng, Y. Zhang, Y. Wang, H. Chang, L. Huang, and X. Liu, “Probing the nature of upconversion nanocrystals: instrumentation matters,” Chem. Soc. Rev. 44(6), 1479–1508 (2015).
[Crossref] [PubMed]

Chen, D.

M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
[Crossref] [PubMed]

D. Chen and P. Huang, “Highly intense upconversion luminescence in Yb/Er:NaGdF4@NaYF4 core-shell nanocrystals with complete shell enclosure of the core,” Dalton Trans. 43(29), 11299–11304 (2014).
[Crossref] [PubMed]

L. Lei, D. Chen, J. Xu, R. Zhang, and Y. Wang, “Highly intensified upconversion luminescence of Ca2+ -doped Yb/Er:NaGdF4 nanocrystals prepared by a solvothermal route,” Chem. Asian J. 9(3), 728–733 (2014).
[Crossref] [PubMed]

L. Lei, D. Chen, P. Huang, J. Xu, R. Zhang, and Y. Wang, “Modifying the size and uniformity of upconversion Yb/Er:NaGdF4 nanocrystals through alkaline-earth doping,” Nanoscale 5(22), 11298–11305 (2013).
[Crossref] [PubMed]

D. Chen, Y. Wang, K. Zheng, T. Guo, and Y. Yu, “Bright upconversion white light emission in transparent glass ceramic embedding Tm3+/Er3+/Yb3+: beta-YF3 nanocrystals,” Appl. Phys. Lett. 92, 1903 (2007).

Chen, G.

G. Chen, H. Ågren, T. Y. Ohulchanskyy, and P. N. Prasad, “Light upconverting core-shell nanostructures: nanophotonic control for emerging applications,” Chem. Soc. Rev. 44(6), 1680–1713 (2015).
[Crossref] [PubMed]

Chen, H.

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

Chen, X.

Y. Liu, D. Tu, H. Zhu, and X. Chen, “Lanthanide-doped luminescent nanoprobes: controlled synthesis, optical spectroscopy, and bioapplications,” Chem. Soc. Rev. 42(16), 6924–6958 (2013).
[Crossref] [PubMed]

Cheng, Z.

G. Li, M. Shang, D. Geng, D. Yang, C. Peng, Z. Cheng, and J. Lin, “Multiform La2O3:Yb3+/Er3+/Tm3+ submicro-/microcrystals derived by hydrothermal process: morphology control and tunable upconversion luminescence properties,” CrystEngComm 14(6), 2100–2111 (2012).
[Crossref]

Chu, P. K.

J. Li, L. Yang, Y. Zhang, J. Zhong, C. Q. Sun, and P. K. Chu, “Pump-power tunable white upconversion emission in lanthanide-doped hexagonal NaYF4 nanorods,” Opt. Mater. 33(6), 882–887 (2011).
[Crossref]

Chuai, X.

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

Cichy, B.

K. Prorok, A. Bednarkiewicz, B. Cichy, A. Gnach, M. Misiak, M. Sobczyk, and W. Strek, “The impact of shell host (NaYF₄/CaF₂) and shell deposition methods on the up-conversion enhancement in Tb³⁺, Yb³⁺ codoped colloidal α-NaYF₄ core-shell nanoparticles,” Nanoscale 6(3), 1855–1864 (2014).
[Crossref] [PubMed]

Dai, Q.

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Deng, R.

X. Liu, R. Deng, Y. Zhang, Y. Wang, H. Chang, L. Huang, and X. Liu, “Probing the nature of upconversion nanocrystals: instrumentation matters,” Chem. Soc. Rev. 44(6), 1479–1508 (2015).
[Crossref] [PubMed]

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

Di, W.

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

Ding, M.

M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
[Crossref] [PubMed]

Dong, B.

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Dou, Q.

Q. Dou, N. M. Idris, and Y. Zhang, “Sandwich-structured upconversion nanoparticles with tunable color for multiplexed cell labeling,” Biomaterials 34(6), 1722–1731 (2013).
[Crossref] [PubMed]

Duan, Z.

X. Xue, S. Uechi, R. N. Tiwari, Z. Duan, M. Liao, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Size-dependent upconversion luminescence and quenching mechanism of LiYF4: Er3+/Yb3+ nanocrystals with oleate ligand adsorbed,” Opt. Mater. Express 3(7), 989–999 (2013).
[Crossref]

X. Xue, Z. Duan, T. Suzuki, R. N. Tiwari, M. Yoshimura, and Y. Ohishi, “Luminescence properties of α-NaYF4:Nd3+ nanocrystals dispersed in liquid: local field effect investigation,” J. Phys. Chem. C 116(42), 22545–22551 (2012).
[Crossref]

Fan, L.

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Feng, J.

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

Feng, L.

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

Fu, H.

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

H. Fu, G. Yang, S. Gai, N. Niu, F. He, J. Xu, and P. Yang, “Color-tunable and enhanced luminescence of well-defined sodium scandium fluoride nanocrystals,” Dalton Trans. 42(22), 7863–7870 (2013).
[Crossref] [PubMed]

Fujii, M.

Z. Bai, M. Fujii, K. Imakita, and S. Hayashi, “Green to red tunable upconversion fluorescence from Bi–Er–Yb codoped zeolites,” Microporous Mesoporous Mater. 173, 43–46 (2013).
[Crossref]

Gai, S.

H. Fu, G. Yang, S. Gai, N. Niu, F. He, J. Xu, and P. Yang, “Color-tunable and enhanced luminescence of well-defined sodium scandium fluoride nanocrystals,” Dalton Trans. 42(22), 7863–7870 (2013).
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Gao, D.

D. Gao, X. Zhang, and J. Zhang, “The effects of structural characterization on the luminescence of Eu3+-doped fluoride nano/microcrystals,” CrystEngComm 16(48), 11115–11121 (2014).
[Crossref]

D. Gao, X. Zhang, H. Zheng, P. Shi, L. Li, and Y. Ling, “Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods,” Dalton Trans. 42(5), 1834–1841 (2013).
[Crossref] [PubMed]

Ge, X.

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

Geng, D.

G. Li, M. Shang, D. Geng, D. Yang, C. Peng, Z. Cheng, and J. Lin, “Multiform La2O3:Yb3+/Er3+/Tm3+ submicro-/microcrystals derived by hydrothermal process: morphology control and tunable upconversion luminescence properties,” CrystEngComm 14(6), 2100–2111 (2012).
[Crossref]

Gnach, A.

K. Prorok, A. Bednarkiewicz, B. Cichy, A. Gnach, M. Misiak, M. Sobczyk, and W. Strek, “The impact of shell host (NaYF₄/CaF₂) and shell deposition methods on the up-conversion enhancement in Tb³⁺, Yb³⁺ codoped colloidal α-NaYF₄ core-shell nanoparticles,” Nanoscale 6(3), 1855–1864 (2014).
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Gorris, H. H.

A. Sedlmeier and H. H. Gorris, “Surface modification and characterization of photon-upconverting nanoparticles for bioanalytical applications,” Chem. Soc. Rev. 44(6), 1526–1560 (2015).
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Gu, Z.

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
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Guo, T.

D. Chen, Y. Wang, K. Zheng, T. Guo, and Y. Yu, “Bright upconversion white light emission in transparent glass ceramic embedding Tm3+/Er3+/Yb3+: beta-YF3 nanocrystals,” Appl. Phys. Lett. 92, 1903 (2007).

Hayashi, S.

Z. Bai, M. Fujii, K. Imakita, and S. Hayashi, “Green to red tunable upconversion fluorescence from Bi–Er–Yb codoped zeolites,” Microporous Mesoporous Mater. 173, 43–46 (2013).
[Crossref]

He, F.

H. Fu, G. Yang, S. Gai, N. Niu, F. He, J. Xu, and P. Yang, “Color-tunable and enhanced luminescence of well-defined sodium scandium fluoride nanocrystals,” Dalton Trans. 42(22), 7863–7870 (2013).
[Crossref] [PubMed]

Huang, L.

X. Liu, R. Deng, Y. Zhang, Y. Wang, H. Chang, L. Huang, and X. Liu, “Probing the nature of upconversion nanocrystals: instrumentation matters,” Chem. Soc. Rev. 44(6), 1479–1508 (2015).
[Crossref] [PubMed]

Huang, P.

D. Chen and P. Huang, “Highly intense upconversion luminescence in Yb/Er:NaGdF4@NaYF4 core-shell nanocrystals with complete shell enclosure of the core,” Dalton Trans. 43(29), 11299–11304 (2014).
[Crossref] [PubMed]

L. Lei, D. Chen, P. Huang, J. Xu, R. Zhang, and Y. Wang, “Modifying the size and uniformity of upconversion Yb/Er:NaGdF4 nanocrystals through alkaline-earth doping,” Nanoscale 5(22), 11298–11305 (2013).
[Crossref] [PubMed]

Huang, S.

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

Huang, X.

M. Liu, Y. Ye, C. Yao, W. Zhao, and X. Huang, “Mn2+-doped NaYF4:Yb/Er upconversion nanoparticles with amplified electrogenerated chemiluminescence for tumor biomarker detection,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6626–6633 (2014).
[Crossref]

Idris, N. M.

Q. Dou, N. M. Idris, and Y. Zhang, “Sandwich-structured upconversion nanoparticles with tunable color for multiplexed cell labeling,” Biomaterials 34(6), 1722–1731 (2013).
[Crossref] [PubMed]

Imakita, K.

Z. Bai, M. Fujii, K. Imakita, and S. Hayashi, “Green to red tunable upconversion fluorescence from Bi–Er–Yb codoped zeolites,” Microporous Mesoporous Mater. 173, 43–46 (2013).
[Crossref]

Ji, Z.

M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
[Crossref] [PubMed]

Jiang, B.

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

Jin, S.

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

Johnson, N. J. J.

N. J. J. Johnson and F. C. J. M. van Veggel, “Sodium lanthanide fluoride core-shell nanocrystals: a general perspective on epitaxial shell growth,” Nano Res. 6(8), 547–561 (2013).
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Kang, X.

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

Kong, X.

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

Kuang, Y.

S. Song, Y. Kuang, J. Liu, Q. Yang, L. Luo, and X. Sun, “Separation and phase transition investigation of Yb3+/Er3+ co-doped NaYF4 nanoparticles,” Dalton Trans. 42(37), 13315–13318 (2013).
[Crossref] [PubMed]

Lee, J. Y.

C. Zhang and J. Y. Lee, “Prevalence of anisotropic shell growth in rare earth core-shell upconversion nanocrystals,” ACS Nano 7(5), 4393–4402 (2013).
[Crossref] [PubMed]

Lei, L.

L. Lei, D. Chen, J. Xu, R. Zhang, and Y. Wang, “Highly intensified upconversion luminescence of Ca2+ -doped Yb/Er:NaGdF4 nanocrystals prepared by a solvothermal route,” Chem. Asian J. 9(3), 728–733 (2014).
[Crossref] [PubMed]

L. Lei, D. Chen, P. Huang, J. Xu, R. Zhang, and Y. Wang, “Modifying the size and uniformity of upconversion Yb/Er:NaGdF4 nanocrystals through alkaline-earth doping,” Nanoscale 5(22), 11298–11305 (2013).
[Crossref] [PubMed]

Lei, Y.

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Li, C.

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

Li, G.

G. Li, M. Shang, D. Geng, D. Yang, C. Peng, Z. Cheng, and J. Lin, “Multiform La2O3:Yb3+/Er3+/Tm3+ submicro-/microcrystals derived by hydrothermal process: morphology control and tunable upconversion luminescence properties,” CrystEngComm 14(6), 2100–2111 (2012).
[Crossref]

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

Li, H.

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

Li, J.

J. Li, L. Yang, Y. Zhang, J. Zhong, C. Q. Sun, and P. K. Chu, “Pump-power tunable white upconversion emission in lanthanide-doped hexagonal NaYF4 nanorods,” Opt. Mater. 33(6), 882–887 (2011).
[Crossref]

Li, L.

D. Gao, X. Zhang, H. Zheng, P. Shi, L. Li, and Y. Ling, “Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods,” Dalton Trans. 42(5), 1834–1841 (2013).
[Crossref] [PubMed]

Li, S.

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

Li, Y.

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

Li, Z.

Z. Li, L. Wang, Z. Wang, X. Liu, and Y. Xiong, “Modification of NaYF4:Yb,Er@SiO2 nanoparticles with gold nanocrystals for tunable green-to-red upconversion emissions,” J. Phys. Chem. C 115(8), 3291–3296 (2011).
[Crossref]

Liao, M.

X. Xue, S. Uechi, R. N. Tiwari, Z. Duan, M. Liao, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Size-dependent upconversion luminescence and quenching mechanism of LiYF4: Er3+/Yb3+ nanocrystals with oleate ligand adsorbed,” Opt. Mater. Express 3(7), 989–999 (2013).
[Crossref]

X. Xue, M. Liao, R. Tiwari, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Intense ultraviolet and blue upconverison emissions in Tb3+/Yb3+ codoped KY3F10 nanocrystals,” Appl. Phys. Express 5(9), 092601 (2012).
[Crossref]

Lin, J.

G. Li, M. Shang, D. Geng, D. Yang, C. Peng, Z. Cheng, and J. Lin, “Multiform La2O3:Yb3+/Er3+/Tm3+ submicro-/microcrystals derived by hydrothermal process: morphology control and tunable upconversion luminescence properties,” CrystEngComm 14(6), 2100–2111 (2012).
[Crossref]

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

Ling, Y.

D. Gao, X. Zhang, H. Zheng, P. Shi, L. Li, and Y. Ling, “Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods,” Dalton Trans. 42(5), 1834–1841 (2013).
[Crossref] [PubMed]

Liu, H.

L. Rao, W. Lu, T. Zeng, Z. Yi, H. Wang, H. Liu, and S. Zeng, “Sub-10 nm BaLaF5: Mn/Yb/Er nanoprobes for dual-modal synergistic in vivo upconversion luminescence and X-ray bioimaging,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6527–6533 (2014).
[Crossref]

H. Wang, W. Lu, T. Zeng, Z. Yi, L. Rao, H. Liu, and S. Zeng, “Multi-functional NaErF4:Yb nanorods: enhanced red upconversion emission, in vitro cell, in vivo X-ray, and T2-weighted magnetic resonance imaging,” Nanoscale 6(5), 2855–2860 (2014).
[Crossref] [PubMed]

Liu, J.

S. Song, Y. Kuang, J. Liu, Q. Yang, L. Luo, and X. Sun, “Separation and phase transition investigation of Yb3+/Er3+ co-doped NaYF4 nanoparticles,” Dalton Trans. 42(37), 13315–13318 (2013).
[Crossref] [PubMed]

Liu, K.

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

Liu, M.

M. Liu, Y. Ye, C. Yao, W. Zhao, and X. Huang, “Mn2+-doped NaYF4:Yb/Er upconversion nanoparticles with amplified electrogenerated chemiluminescence for tumor biomarker detection,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6626–6633 (2014).
[Crossref]

Liu, S.

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

Liu, X.

X. Liu, R. Deng, Y. Zhang, Y. Wang, H. Chang, L. Huang, and X. Liu, “Probing the nature of upconversion nanocrystals: instrumentation matters,” Chem. Soc. Rev. 44(6), 1479–1508 (2015).
[Crossref] [PubMed]

X. Liu, R. Deng, Y. Zhang, Y. Wang, H. Chang, L. Huang, and X. Liu, “Probing the nature of upconversion nanocrystals: instrumentation matters,” Chem. Soc. Rev. 44(6), 1479–1508 (2015).
[Crossref] [PubMed]

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

Z. Li, L. Wang, Z. Wang, X. Liu, and Y. Xiong, “Modification of NaYF4:Yb,Er@SiO2 nanoparticles with gold nanocrystals for tunable green-to-red upconversion emissions,” J. Phys. Chem. C 115(8), 3291–3296 (2011).
[Crossref]

Liu, Y.

Y. Liu, D. Tu, H. Zhu, and X. Chen, “Lanthanide-doped luminescent nanoprobes: controlled synthesis, optical spectroscopy, and bioapplications,” Chem. Soc. Rev. 42(16), 6924–6958 (2013).
[Crossref] [PubMed]

Lu, C.

M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
[Crossref] [PubMed]

Lu, S.

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Lu, W.

H. Wang, W. Lu, T. Zeng, Z. Yi, L. Rao, H. Liu, and S. Zeng, “Multi-functional NaErF4:Yb nanorods: enhanced red upconversion emission, in vitro cell, in vivo X-ray, and T2-weighted magnetic resonance imaging,” Nanoscale 6(5), 2855–2860 (2014).
[Crossref] [PubMed]

L. Rao, W. Lu, T. Zeng, Z. Yi, H. Wang, H. Liu, and S. Zeng, “Sub-10 nm BaLaF5: Mn/Yb/Er nanoprobes for dual-modal synergistic in vivo upconversion luminescence and X-ray bioimaging,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6527–6533 (2014).
[Crossref]

Luo, L.

S. Song, Y. Kuang, J. Liu, Q. Yang, L. Luo, and X. Sun, “Separation and phase transition investigation of Yb3+/Er3+ co-doped NaYF4 nanoparticles,” Dalton Trans. 42(37), 13315–13318 (2013).
[Crossref] [PubMed]

Ma, P.

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

Misiak, M.

K. Prorok, A. Bednarkiewicz, B. Cichy, A. Gnach, M. Misiak, M. Sobczyk, and W. Strek, “The impact of shell host (NaYF₄/CaF₂) and shell deposition methods on the up-conversion enhancement in Tb³⁺, Yb³⁺ codoped colloidal α-NaYF₄ core-shell nanoparticles,” Nanoscale 6(3), 1855–1864 (2014).
[Crossref] [PubMed]

Ni, Y.

M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
[Crossref] [PubMed]

Niu, N.

H. Fu, G. Yang, S. Gai, N. Niu, F. He, J. Xu, and P. Yang, “Color-tunable and enhanced luminescence of well-defined sodium scandium fluoride nanocrystals,” Dalton Trans. 42(22), 7863–7870 (2013).
[Crossref] [PubMed]

Ohishi, Y.

X. Xue, S. Uechi, R. N. Tiwari, Z. Duan, M. Liao, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Size-dependent upconversion luminescence and quenching mechanism of LiYF4: Er3+/Yb3+ nanocrystals with oleate ligand adsorbed,” Opt. Mater. Express 3(7), 989–999 (2013).
[Crossref]

X. Xue, M. Liao, R. Tiwari, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Intense ultraviolet and blue upconverison emissions in Tb3+/Yb3+ codoped KY3F10 nanocrystals,” Appl. Phys. Express 5(9), 092601 (2012).
[Crossref]

X. Xue, Z. Duan, T. Suzuki, R. N. Tiwari, M. Yoshimura, and Y. Ohishi, “Luminescence properties of α-NaYF4:Nd3+ nanocrystals dispersed in liquid: local field effect investigation,” J. Phys. Chem. C 116(42), 22545–22551 (2012).
[Crossref]

Ohulchanskyy, T. Y.

G. Chen, H. Ågren, T. Y. Ohulchanskyy, and P. N. Prasad, “Light upconverting core-shell nanostructures: nanophotonic control for emerging applications,” Chem. Soc. Rev. 44(6), 1680–1713 (2015).
[Crossref] [PubMed]

Pan, G.

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Pan, K.

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

Pang, M.

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

Peng, C.

G. Li, M. Shang, D. Geng, D. Yang, C. Peng, Z. Cheng, and J. Lin, “Multiform La2O3:Yb3+/Er3+/Tm3+ submicro-/microcrystals derived by hydrothermal process: morphology control and tunable upconversion luminescence properties,” CrystEngComm 14(6), 2100–2111 (2012).
[Crossref]

Prasad, P. N.

G. Chen, H. Ågren, T. Y. Ohulchanskyy, and P. N. Prasad, “Light upconverting core-shell nanostructures: nanophotonic control for emerging applications,” Chem. Soc. Rev. 44(6), 1680–1713 (2015).
[Crossref] [PubMed]

Prorok, K.

K. Prorok, A. Bednarkiewicz, B. Cichy, A. Gnach, M. Misiak, M. Sobczyk, and W. Strek, “The impact of shell host (NaYF₄/CaF₂) and shell deposition methods on the up-conversion enhancement in Tb³⁺, Yb³⁺ codoped colloidal α-NaYF₄ core-shell nanoparticles,” Nanoscale 6(3), 1855–1864 (2014).
[Crossref] [PubMed]

Qin, G.

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

Qin, W.

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

Qu, Y.

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

Rao, L.

H. Wang, W. Lu, T. Zeng, Z. Yi, L. Rao, H. Liu, and S. Zeng, “Multi-functional NaErF4:Yb nanorods: enhanced red upconversion emission, in vitro cell, in vivo X-ray, and T2-weighted magnetic resonance imaging,” Nanoscale 6(5), 2855–2860 (2014).
[Crossref] [PubMed]

L. Rao, W. Lu, T. Zeng, Z. Yi, H. Wang, H. Liu, and S. Zeng, “Sub-10 nm BaLaF5: Mn/Yb/Er nanoprobes for dual-modal synergistic in vivo upconversion luminescence and X-ray bioimaging,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6527–6533 (2014).
[Crossref]

Ren, W.

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

Ren, X.

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Sedlmeier, A.

A. Sedlmeier and H. H. Gorris, “Surface modification and characterization of photon-upconverting nanoparticles for bioanalytical applications,” Chem. Soc. Rev. 44(6), 1526–1560 (2015).
[Crossref] [PubMed]

Shang, M.

G. Li, M. Shang, D. Geng, D. Yang, C. Peng, Z. Cheng, and J. Lin, “Multiform La2O3:Yb3+/Er3+/Tm3+ submicro-/microcrystals derived by hydrothermal process: morphology control and tunable upconversion luminescence properties,” CrystEngComm 14(6), 2100–2111 (2012).
[Crossref]

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

Shi, P.

D. Gao, X. Zhang, H. Zheng, P. Shi, L. Li, and Y. Ling, “Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods,” Dalton Trans. 42(5), 1834–1841 (2013).
[Crossref] [PubMed]

Sobczyk, M.

K. Prorok, A. Bednarkiewicz, B. Cichy, A. Gnach, M. Misiak, M. Sobczyk, and W. Strek, “The impact of shell host (NaYF₄/CaF₂) and shell deposition methods on the up-conversion enhancement in Tb³⁺, Yb³⁺ codoped colloidal α-NaYF₄ core-shell nanoparticles,” Nanoscale 6(3), 1855–1864 (2014).
[Crossref] [PubMed]

Song, H.

W. Yu, W. Xu, H. Song, and S. Zhang, “Temperature-dependent upconversion luminescence and dynamics of NaYF4:Yb3+/Er3+ nanocrystals: influence of particle size and crystalline phase,” Dalton Trans. 43(16), 6139–6147 (2014).
[Crossref] [PubMed]

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Song, S.

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

S. Song, Y. Kuang, J. Liu, Q. Yang, L. Luo, and X. Sun, “Separation and phase transition investigation of Yb3+/Er3+ co-doped NaYF4 nanoparticles,” Dalton Trans. 42(37), 13315–13318 (2013).
[Crossref] [PubMed]

Strek, W.

K. Prorok, A. Bednarkiewicz, B. Cichy, A. Gnach, M. Misiak, M. Sobczyk, and W. Strek, “The impact of shell host (NaYF₄/CaF₂) and shell deposition methods on the up-conversion enhancement in Tb³⁺, Yb³⁺ codoped colloidal α-NaYF₄ core-shell nanoparticles,” Nanoscale 6(3), 1855–1864 (2014).
[Crossref] [PubMed]

Sun, C. Q.

J. Li, L. Yang, Y. Zhang, J. Zhong, C. Q. Sun, and P. K. Chu, “Pump-power tunable white upconversion emission in lanthanide-doped hexagonal NaYF4 nanorods,” Opt. Mater. 33(6), 882–887 (2011).
[Crossref]

Sun, X.

S. Song, Y. Kuang, J. Liu, Q. Yang, L. Luo, and X. Sun, “Separation and phase transition investigation of Yb3+/Er3+ co-doped NaYF4 nanoparticles,” Dalton Trans. 42(37), 13315–13318 (2013).
[Crossref] [PubMed]

Suzuki, T.

X. Xue, S. Uechi, R. N. Tiwari, Z. Duan, M. Liao, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Size-dependent upconversion luminescence and quenching mechanism of LiYF4: Er3+/Yb3+ nanocrystals with oleate ligand adsorbed,” Opt. Mater. Express 3(7), 989–999 (2013).
[Crossref]

X. Xue, M. Liao, R. Tiwari, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Intense ultraviolet and blue upconverison emissions in Tb3+/Yb3+ codoped KY3F10 nanocrystals,” Appl. Phys. Express 5(9), 092601 (2012).
[Crossref]

X. Xue, Z. Duan, T. Suzuki, R. N. Tiwari, M. Yoshimura, and Y. Ohishi, “Luminescence properties of α-NaYF4:Nd3+ nanocrystals dispersed in liquid: local field effect investigation,” J. Phys. Chem. C 116(42), 22545–22551 (2012).
[Crossref]

Tian, C.

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

Tian, G.

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

Tiwari, R.

X. Xue, M. Liao, R. Tiwari, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Intense ultraviolet and blue upconverison emissions in Tb3+/Yb3+ codoped KY3F10 nanocrystals,” Appl. Phys. Express 5(9), 092601 (2012).
[Crossref]

Tiwari, R. N.

X. Xue, S. Uechi, R. N. Tiwari, Z. Duan, M. Liao, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Size-dependent upconversion luminescence and quenching mechanism of LiYF4: Er3+/Yb3+ nanocrystals with oleate ligand adsorbed,” Opt. Mater. Express 3(7), 989–999 (2013).
[Crossref]

X. Xue, Z. Duan, T. Suzuki, R. N. Tiwari, M. Yoshimura, and Y. Ohishi, “Luminescence properties of α-NaYF4:Nd3+ nanocrystals dispersed in liquid: local field effect investigation,” J. Phys. Chem. C 116(42), 22545–22551 (2012).
[Crossref]

Tu, D.

Y. Liu, D. Tu, H. Zhu, and X. Chen, “Lanthanide-doped luminescent nanoprobes: controlled synthesis, optical spectroscopy, and bioapplications,” Chem. Soc. Rev. 42(16), 6924–6958 (2013).
[Crossref] [PubMed]

Tu, L.

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

Uechi, S.

van Veggel, F. C. J. M.

N. J. J. Johnson and F. C. J. M. van Veggel, “Sodium lanthanide fluoride core-shell nanocrystals: a general perspective on epitaxial shell growth,” Nano Res. 6(8), 547–561 (2013).
[Crossref]

Wang, G.

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

Wang, H.

H. Wang, W. Lu, T. Zeng, Z. Yi, L. Rao, H. Liu, and S. Zeng, “Multi-functional NaErF4:Yb nanorods: enhanced red upconversion emission, in vitro cell, in vivo X-ray, and T2-weighted magnetic resonance imaging,” Nanoscale 6(5), 2855–2860 (2014).
[Crossref] [PubMed]

L. Rao, W. Lu, T. Zeng, Z. Yi, H. Wang, H. Liu, and S. Zeng, “Sub-10 nm BaLaF5: Mn/Yb/Er nanoprobes for dual-modal synergistic in vivo upconversion luminescence and X-ray bioimaging,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6527–6533 (2014).
[Crossref]

Wang, L.

Z. Li, L. Wang, Z. Wang, X. Liu, and Y. Xiong, “Modification of NaYF4:Yb,Er@SiO2 nanoparticles with gold nanocrystals for tunable green-to-red upconversion emissions,” J. Phys. Chem. C 115(8), 3291–3296 (2011).
[Crossref]

Wang, T.

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Wang, Y.

X. Liu, R. Deng, Y. Zhang, Y. Wang, H. Chang, L. Huang, and X. Liu, “Probing the nature of upconversion nanocrystals: instrumentation matters,” Chem. Soc. Rev. 44(6), 1479–1508 (2015).
[Crossref] [PubMed]

L. Lei, D. Chen, J. Xu, R. Zhang, and Y. Wang, “Highly intensified upconversion luminescence of Ca2+ -doped Yb/Er:NaGdF4 nanocrystals prepared by a solvothermal route,” Chem. Asian J. 9(3), 728–733 (2014).
[Crossref] [PubMed]

L. Lei, D. Chen, P. Huang, J. Xu, R. Zhang, and Y. Wang, “Modifying the size and uniformity of upconversion Yb/Er:NaGdF4 nanocrystals through alkaline-earth doping,” Nanoscale 5(22), 11298–11305 (2013).
[Crossref] [PubMed]

D. Chen, Y. Wang, K. Zheng, T. Guo, and Y. Yu, “Bright upconversion white light emission in transparent glass ceramic embedding Tm3+/Er3+/Yb3+: beta-YF3 nanocrystals,” Appl. Phys. Lett. 92, 1903 (2007).

Wang, Z.

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

Z. Li, L. Wang, Z. Wang, X. Liu, and Y. Xiong, “Modification of NaYF4:Yb,Er@SiO2 nanoparticles with gold nanocrystals for tunable green-to-red upconversion emissions,” J. Phys. Chem. C 115(8), 3291–3296 (2011).
[Crossref]

Wu, C.

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

Wu, F.

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

Xing, G.

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

Xiong, Y.

Z. Li, L. Wang, Z. Wang, X. Liu, and Y. Xiong, “Modification of NaYF4:Yb,Er@SiO2 nanoparticles with gold nanocrystals for tunable green-to-red upconversion emissions,” J. Phys. Chem. C 115(8), 3291–3296 (2011).
[Crossref]

Xu, J.

L. Lei, D. Chen, J. Xu, R. Zhang, and Y. Wang, “Highly intensified upconversion luminescence of Ca2+ -doped Yb/Er:NaGdF4 nanocrystals prepared by a solvothermal route,” Chem. Asian J. 9(3), 728–733 (2014).
[Crossref] [PubMed]

L. Lei, D. Chen, P. Huang, J. Xu, R. Zhang, and Y. Wang, “Modifying the size and uniformity of upconversion Yb/Er:NaGdF4 nanocrystals through alkaline-earth doping,” Nanoscale 5(22), 11298–11305 (2013).
[Crossref] [PubMed]

H. Fu, G. Yang, S. Gai, N. Niu, F. He, J. Xu, and P. Yang, “Color-tunable and enhanced luminescence of well-defined sodium scandium fluoride nanocrystals,” Dalton Trans. 42(22), 7863–7870 (2013).
[Crossref] [PubMed]

Xu, W.

W. Yu, W. Xu, H. Song, and S. Zhang, “Temperature-dependent upconversion luminescence and dynamics of NaYF4:Yb3+/Er3+ nanocrystals: influence of particle size and crystalline phase,” Dalton Trans. 43(16), 6139–6147 (2014).
[Crossref] [PubMed]

Xu, Z.

M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
[Crossref] [PubMed]

Xue, X.

X. Xue, S. Uechi, R. N. Tiwari, Z. Duan, M. Liao, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Size-dependent upconversion luminescence and quenching mechanism of LiYF4: Er3+/Yb3+ nanocrystals with oleate ligand adsorbed,” Opt. Mater. Express 3(7), 989–999 (2013).
[Crossref]

X. Xue, M. Liao, R. Tiwari, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Intense ultraviolet and blue upconverison emissions in Tb3+/Yb3+ codoped KY3F10 nanocrystals,” Appl. Phys. Express 5(9), 092601 (2012).
[Crossref]

X. Xue, Z. Duan, T. Suzuki, R. N. Tiwari, M. Yoshimura, and Y. Ohishi, “Luminescence properties of α-NaYF4:Nd3+ nanocrystals dispersed in liquid: local field effect investigation,” J. Phys. Chem. C 116(42), 22545–22551 (2012).
[Crossref]

Yan, L.

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

Yang, D.

G. Li, M. Shang, D. Geng, D. Yang, C. Peng, Z. Cheng, and J. Lin, “Multiform La2O3:Yb3+/Er3+/Tm3+ submicro-/microcrystals derived by hydrothermal process: morphology control and tunable upconversion luminescence properties,” CrystEngComm 14(6), 2100–2111 (2012).
[Crossref]

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

Yang, G.

H. Fu, G. Yang, S. Gai, N. Niu, F. He, J. Xu, and P. Yang, “Color-tunable and enhanced luminescence of well-defined sodium scandium fluoride nanocrystals,” Dalton Trans. 42(22), 7863–7870 (2013).
[Crossref] [PubMed]

Yang, L.

J. Li, L. Yang, Y. Zhang, J. Zhong, C. Q. Sun, and P. K. Chu, “Pump-power tunable white upconversion emission in lanthanide-doped hexagonal NaYF4 nanorods,” Opt. Mater. 33(6), 882–887 (2011).
[Crossref]

Yang, P.

H. Fu, G. Yang, S. Gai, N. Niu, F. He, J. Xu, and P. Yang, “Color-tunable and enhanced luminescence of well-defined sodium scandium fluoride nanocrystals,” Dalton Trans. 42(22), 7863–7870 (2013).
[Crossref] [PubMed]

Yang, Q.

S. Song, Y. Kuang, J. Liu, Q. Yang, L. Luo, and X. Sun, “Separation and phase transition investigation of Yb3+/Er3+ co-doped NaYF4 nanoparticles,” Dalton Trans. 42(37), 13315–13318 (2013).
[Crossref] [PubMed]

Yao, C.

M. Liu, Y. Ye, C. Yao, W. Zhao, and X. Huang, “Mn2+-doped NaYF4:Yb/Er upconversion nanoparticles with amplified electrogenerated chemiluminescence for tumor biomarker detection,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6626–6633 (2014).
[Crossref]

Yao, S.

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

Ye, Y.

M. Liu, Y. Ye, C. Yao, W. Zhao, and X. Huang, “Mn2+-doped NaYF4:Yb/Er upconversion nanoparticles with amplified electrogenerated chemiluminescence for tumor biomarker detection,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6626–6633 (2014).
[Crossref]

Yi, Z.

H. Wang, W. Lu, T. Zeng, Z. Yi, L. Rao, H. Liu, and S. Zeng, “Multi-functional NaErF4:Yb nanorods: enhanced red upconversion emission, in vitro cell, in vivo X-ray, and T2-weighted magnetic resonance imaging,” Nanoscale 6(5), 2855–2860 (2014).
[Crossref] [PubMed]

L. Rao, W. Lu, T. Zeng, Z. Yi, H. Wang, H. Liu, and S. Zeng, “Sub-10 nm BaLaF5: Mn/Yb/Er nanoprobes for dual-modal synergistic in vivo upconversion luminescence and X-ray bioimaging,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6527–6533 (2014).
[Crossref]

Yin, S.

M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
[Crossref] [PubMed]

Yin, W.

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

Yoshimura, M.

X. Xue, S. Uechi, R. N. Tiwari, Z. Duan, M. Liao, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Size-dependent upconversion luminescence and quenching mechanism of LiYF4: Er3+/Yb3+ nanocrystals with oleate ligand adsorbed,” Opt. Mater. Express 3(7), 989–999 (2013).
[Crossref]

X. Xue, M. Liao, R. Tiwari, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Intense ultraviolet and blue upconverison emissions in Tb3+/Yb3+ codoped KY3F10 nanocrystals,” Appl. Phys. Express 5(9), 092601 (2012).
[Crossref]

X. Xue, Z. Duan, T. Suzuki, R. N. Tiwari, M. Yoshimura, and Y. Ohishi, “Luminescence properties of α-NaYF4:Nd3+ nanocrystals dispersed in liquid: local field effect investigation,” J. Phys. Chem. C 116(42), 22545–22551 (2012).
[Crossref]

Yu, F.

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

Yu, W.

W. Yu, W. Xu, H. Song, and S. Zhang, “Temperature-dependent upconversion luminescence and dynamics of NaYF4:Yb3+/Er3+ nanocrystals: influence of particle size and crystalline phase,” Dalton Trans. 43(16), 6139–6147 (2014).
[Crossref] [PubMed]

Yu, Y.

D. Chen, Y. Wang, K. Zheng, T. Guo, and Y. Yu, “Bright upconversion white light emission in transparent glass ceramic embedding Tm3+/Er3+/Yb3+: beta-YF3 nanocrystals,” Appl. Phys. Lett. 92, 1903 (2007).

Zeng, Q.

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

Zeng, S.

L. Rao, W. Lu, T. Zeng, Z. Yi, H. Wang, H. Liu, and S. Zeng, “Sub-10 nm BaLaF5: Mn/Yb/Er nanoprobes for dual-modal synergistic in vivo upconversion luminescence and X-ray bioimaging,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6527–6533 (2014).
[Crossref]

H. Wang, W. Lu, T. Zeng, Z. Yi, L. Rao, H. Liu, and S. Zeng, “Multi-functional NaErF4:Yb nanorods: enhanced red upconversion emission, in vitro cell, in vivo X-ray, and T2-weighted magnetic resonance imaging,” Nanoscale 6(5), 2855–2860 (2014).
[Crossref] [PubMed]

Zeng, T.

H. Wang, W. Lu, T. Zeng, Z. Yi, L. Rao, H. Liu, and S. Zeng, “Multi-functional NaErF4:Yb nanorods: enhanced red upconversion emission, in vitro cell, in vivo X-ray, and T2-weighted magnetic resonance imaging,” Nanoscale 6(5), 2855–2860 (2014).
[Crossref] [PubMed]

L. Rao, W. Lu, T. Zeng, Z. Yi, H. Wang, H. Liu, and S. Zeng, “Sub-10 nm BaLaF5: Mn/Yb/Er nanoprobes for dual-modal synergistic in vivo upconversion luminescence and X-ray bioimaging,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6527–6533 (2014).
[Crossref]

Zhai, X.

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

Zhang, C.

C. Zhang and J. Y. Lee, “Prevalence of anisotropic shell growth in rare earth core-shell upconversion nanocrystals,” ACS Nano 7(5), 4393–4402 (2013).
[Crossref] [PubMed]

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

Zhang, H.

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

Zhang, J.

D. Gao, X. Zhang, and J. Zhang, “The effects of structural characterization on the luminescence of Eu3+-doped fluoride nano/microcrystals,” CrystEngComm 16(48), 11115–11121 (2014).
[Crossref]

Zhang, R.

L. Lei, D. Chen, J. Xu, R. Zhang, and Y. Wang, “Highly intensified upconversion luminescence of Ca2+ -doped Yb/Er:NaGdF4 nanocrystals prepared by a solvothermal route,” Chem. Asian J. 9(3), 728–733 (2014).
[Crossref] [PubMed]

L. Lei, D. Chen, P. Huang, J. Xu, R. Zhang, and Y. Wang, “Modifying the size and uniformity of upconversion Yb/Er:NaGdF4 nanocrystals through alkaline-earth doping,” Nanoscale 5(22), 11298–11305 (2013).
[Crossref] [PubMed]

Zhang, S.

W. Yu, W. Xu, H. Song, and S. Zhang, “Temperature-dependent upconversion luminescence and dynamics of NaYF4:Yb3+/Er3+ nanocrystals: influence of particle size and crystalline phase,” Dalton Trans. 43(16), 6139–6147 (2014).
[Crossref] [PubMed]

Zhang, X.

D. Gao, X. Zhang, and J. Zhang, “The effects of structural characterization on the luminescence of Eu3+-doped fluoride nano/microcrystals,” CrystEngComm 16(48), 11115–11121 (2014).
[Crossref]

D. Gao, X. Zhang, H. Zheng, P. Shi, L. Li, and Y. Ling, “Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods,” Dalton Trans. 42(5), 1834–1841 (2013).
[Crossref] [PubMed]

Zhang, Y.

X. Liu, R. Deng, Y. Zhang, Y. Wang, H. Chang, L. Huang, and X. Liu, “Probing the nature of upconversion nanocrystals: instrumentation matters,” Chem. Soc. Rev. 44(6), 1479–1508 (2015).
[Crossref] [PubMed]

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

Q. Dou, N. M. Idris, and Y. Zhang, “Sandwich-structured upconversion nanoparticles with tunable color for multiplexed cell labeling,” Biomaterials 34(6), 1722–1731 (2013).
[Crossref] [PubMed]

J. Li, L. Yang, Y. Zhang, J. Zhong, C. Q. Sun, and P. K. Chu, “Pump-power tunable white upconversion emission in lanthanide-doped hexagonal NaYF4 nanorods,” Opt. Mater. 33(6), 882–887 (2011).
[Crossref]

Zhao, C.

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

Zhao, D.

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

Zhao, L.

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

Zhao, W.

M. Liu, Y. Ye, C. Yao, W. Zhao, and X. Huang, “Mn2+-doped NaYF4:Yb/Er upconversion nanoparticles with amplified electrogenerated chemiluminescence for tumor biomarker detection,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6626–6633 (2014).
[Crossref]

Zhao, Y.

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

Zheng, H.

D. Gao, X. Zhang, H. Zheng, P. Shi, L. Li, and Y. Ling, “Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods,” Dalton Trans. 42(5), 1834–1841 (2013).
[Crossref] [PubMed]

Zheng, K.

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

D. Chen, Y. Wang, K. Zheng, T. Guo, and Y. Yu, “Bright upconversion white light emission in transparent glass ceramic embedding Tm3+/Er3+/Yb3+: beta-YF3 nanocrystals,” Appl. Phys. Lett. 92, 1903 (2007).

Zhong, J.

M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
[Crossref] [PubMed]

J. Li, L. Yang, Y. Zhang, J. Zhong, C. Q. Sun, and P. K. Chu, “Pump-power tunable white upconversion emission in lanthanide-doped hexagonal NaYF4 nanorods,” Opt. Mater. 33(6), 882–887 (2011).
[Crossref]

Zhou, L.

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

Zhou, W.

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

Zhu, H.

Y. Liu, D. Tu, H. Zhu, and X. Chen, “Lanthanide-doped luminescent nanoprobes: controlled synthesis, optical spectroscopy, and bioapplications,” Chem. Soc. Rev. 42(16), 6924–6958 (2013).
[Crossref] [PubMed]

ACS Nano (1)

C. Zhang and J. Y. Lee, “Prevalence of anisotropic shell growth in rare earth core-shell upconversion nanocrystals,” ACS Nano 7(5), 4393–4402 (2013).
[Crossref] [PubMed]

Adv. Mater. (1)

G. Tian, Z. Gu, L. Zhou, W. Yin, X. Liu, L. Yan, S. Jin, W. Ren, G. Xing, S. Li, and Y. Zhao, “Mn2+ dopant-controlled synthesis of NaYF4:Yb/Er upconversion nanoparticles for in vivo imaging and drug delivery,” Adv. Mater. 24(9), 1226–1231 (2012).
[Crossref] [PubMed]

Appl. Phys. Express (1)

X. Xue, M. Liao, R. Tiwari, M. Yoshimura, T. Suzuki, and Y. Ohishi, “Intense ultraviolet and blue upconverison emissions in Tb3+/Yb3+ codoped KY3F10 nanocrystals,” Appl. Phys. Express 5(9), 092601 (2012).
[Crossref]

Appl. Phys. Lett. (1)

D. Chen, Y. Wang, K. Zheng, T. Guo, and Y. Yu, “Bright upconversion white light emission in transparent glass ceramic embedding Tm3+/Er3+/Yb3+: beta-YF3 nanocrystals,” Appl. Phys. Lett. 92, 1903 (2007).

Biomaterials (1)

Q. Dou, N. M. Idris, and Y. Zhang, “Sandwich-structured upconversion nanoparticles with tunable color for multiplexed cell labeling,” Biomaterials 34(6), 1722–1731 (2013).
[Crossref] [PubMed]

Chem. Asian J. (1)

L. Lei, D. Chen, J. Xu, R. Zhang, and Y. Wang, “Highly intensified upconversion luminescence of Ca2+ -doped Yb/Er:NaGdF4 nanocrystals prepared by a solvothermal route,” Chem. Asian J. 9(3), 728–733 (2014).
[Crossref] [PubMed]

Chem. Soc. Rev. (4)

A. Sedlmeier and H. H. Gorris, “Surface modification and characterization of photon-upconverting nanoparticles for bioanalytical applications,” Chem. Soc. Rev. 44(6), 1526–1560 (2015).
[Crossref] [PubMed]

X. Liu, R. Deng, Y. Zhang, Y. Wang, H. Chang, L. Huang, and X. Liu, “Probing the nature of upconversion nanocrystals: instrumentation matters,” Chem. Soc. Rev. 44(6), 1479–1508 (2015).
[Crossref] [PubMed]

Y. Liu, D. Tu, H. Zhu, and X. Chen, “Lanthanide-doped luminescent nanoprobes: controlled synthesis, optical spectroscopy, and bioapplications,” Chem. Soc. Rev. 42(16), 6924–6958 (2013).
[Crossref] [PubMed]

G. Chen, H. Ågren, T. Y. Ohulchanskyy, and P. N. Prasad, “Light upconverting core-shell nanostructures: nanophotonic control for emerging applications,” Chem. Soc. Rev. 44(6), 1680–1713 (2015).
[Crossref] [PubMed]

Chemistry (1)

W. Yin, L. Zhao, L. Zhou, Z. Gu, X. Liu, G. Tian, S. Jin, L. Yan, W. Ren, G. Xing, and Y. Zhao, “Enhanced red emission from GdF3:Yb3+,Er3+ upconversion nanocrystals by Li+ doping and their application for bioimaging,” Chemistry 18(30), 9239–9245 (2012).
[Crossref] [PubMed]

CrystEngComm (2)

G. Li, M. Shang, D. Geng, D. Yang, C. Peng, Z. Cheng, and J. Lin, “Multiform La2O3:Yb3+/Er3+/Tm3+ submicro-/microcrystals derived by hydrothermal process: morphology control and tunable upconversion luminescence properties,” CrystEngComm 14(6), 2100–2111 (2012).
[Crossref]

D. Gao, X. Zhang, and J. Zhang, “The effects of structural characterization on the luminescence of Eu3+-doped fluoride nano/microcrystals,” CrystEngComm 16(48), 11115–11121 (2014).
[Crossref]

Dalton Trans. (7)

W. Yu, W. Xu, H. Song, and S. Zhang, “Temperature-dependent upconversion luminescence and dynamics of NaYF4:Yb3+/Er3+ nanocrystals: influence of particle size and crystalline phase,” Dalton Trans. 43(16), 6139–6147 (2014).
[Crossref] [PubMed]

S. Song, Y. Kuang, J. Liu, Q. Yang, L. Luo, and X. Sun, “Separation and phase transition investigation of Yb3+/Er3+ co-doped NaYF4 nanoparticles,” Dalton Trans. 42(37), 13315–13318 (2013).
[Crossref] [PubMed]

D. Gao, X. Zhang, H. Zheng, P. Shi, L. Li, and Y. Ling, “Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods,” Dalton Trans. 42(5), 1834–1841 (2013).
[Crossref] [PubMed]

D. Chen and P. Huang, “Highly intense upconversion luminescence in Yb/Er:NaGdF4@NaYF4 core-shell nanocrystals with complete shell enclosure of the core,” Dalton Trans. 43(29), 11299–11304 (2014).
[Crossref] [PubMed]

M. Pang, X. Zhai, J. Feng, S. Song, R. Deng, Z. Wang, S. Yao, X. Ge, and H. Zhang, “One-step synthesis of water-soluble hexagonal NaScF4:Yb/Er nanocrystals with intense red emission,” Dalton Trans. 43(26), 10202–10207 (2014).
[Crossref] [PubMed]

Y. Li, K. Pan, G. Wang, B. Jiang, C. Tian, W. Zhou, Y. Qu, S. Liu, L. Feng, and H. Fu, “Enhanced photoelectric conversion efficiency of dye-sensitized solar cells by the incorporation of dual-mode luminescent NaYF4:Yb3+/Er3+.,” Dalton Trans. 42(22), 7971–7979 (2013).
[Crossref] [PubMed]

H. Fu, G. Yang, S. Gai, N. Niu, F. He, J. Xu, and P. Yang, “Color-tunable and enhanced luminescence of well-defined sodium scandium fluoride nanocrystals,” Dalton Trans. 42(22), 7863–7870 (2013).
[Crossref] [PubMed]

J. Mater. Chem. (1)

C. Zhang, P. Ma, C. Li, G. Li, S. Huang, D. Yang, M. Shang, X. Kang, and J. Lin, “Controllable and white upconversion luminescence in BaYF5: Ln3+(Ln= Yb, Er, Tm) nanocrystals,” J. Mater. Chem. 21(3), 717–723 (2011).
[Crossref]

J. Mater. Chem. B Mater. Biol. Med. (2)

M. Liu, Y. Ye, C. Yao, W. Zhao, and X. Huang, “Mn2+-doped NaYF4:Yb/Er upconversion nanoparticles with amplified electrogenerated chemiluminescence for tumor biomarker detection,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6626–6633 (2014).
[Crossref]

L. Rao, W. Lu, T. Zeng, Z. Yi, H. Wang, H. Liu, and S. Zeng, “Sub-10 nm BaLaF5: Mn/Yb/Er nanoprobes for dual-modal synergistic in vivo upconversion luminescence and X-ray bioimaging,” J. Mater. Chem. B Mater. Biol. Med. 2(38), 6527–6533 (2014).
[Crossref]

J. Phys. Chem. C (3)

Z. Li, L. Wang, Z. Wang, X. Liu, and Y. Xiong, “Modification of NaYF4:Yb,Er@SiO2 nanoparticles with gold nanocrystals for tunable green-to-red upconversion emissions,” J. Phys. Chem. C 115(8), 3291–3296 (2011).
[Crossref]

X. Xue, Z. Duan, T. Suzuki, R. N. Tiwari, M. Yoshimura, and Y. Ohishi, “Luminescence properties of α-NaYF4:Nd3+ nanocrystals dispersed in liquid: local field effect investigation,” J. Phys. Chem. C 116(42), 22545–22551 (2012).
[Crossref]

X. Bai, H. Song, G. Pan, Y. Lei, T. Wang, X. Ren, S. Lu, B. Dong, Q. Dai, and L. Fan, “Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline Yttria: saturation and thermal effects,” J. Phys. Chem. C 111(36), 13611–13617 (2007).
[Crossref]

Microporous Mesoporous Mater. (1)

Z. Bai, M. Fujii, K. Imakita, and S. Hayashi, “Green to red tunable upconversion fluorescence from Bi–Er–Yb codoped zeolites,” Microporous Mesoporous Mater. 173, 43–46 (2013).
[Crossref]

Nano Res. (1)

N. J. J. Johnson and F. C. J. M. van Veggel, “Sodium lanthanide fluoride core-shell nanocrystals: a general perspective on epitaxial shell growth,” Nano Res. 6(8), 547–561 (2013).
[Crossref]

Nanoscale (4)

K. Prorok, A. Bednarkiewicz, B. Cichy, A. Gnach, M. Misiak, M. Sobczyk, and W. Strek, “The impact of shell host (NaYF₄/CaF₂) and shell deposition methods on the up-conversion enhancement in Tb³⁺, Yb³⁺ codoped colloidal α-NaYF₄ core-shell nanoparticles,” Nanoscale 6(3), 1855–1864 (2014).
[Crossref] [PubMed]

H. Wang, W. Lu, T. Zeng, Z. Yi, L. Rao, H. Liu, and S. Zeng, “Multi-functional NaErF4:Yb nanorods: enhanced red upconversion emission, in vitro cell, in vivo X-ray, and T2-weighted magnetic resonance imaging,” Nanoscale 6(5), 2855–2860 (2014).
[Crossref] [PubMed]

L. Lei, D. Chen, P. Huang, J. Xu, R. Zhang, and Y. Wang, “Modifying the size and uniformity of upconversion Yb/Er:NaGdF4 nanocrystals through alkaline-earth doping,” Nanoscale 5(22), 11298–11305 (2013).
[Crossref] [PubMed]

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang, “Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticles,” Nanoscale 5(17), 8084–8089 (2013).
[Crossref] [PubMed]

Opt. Mater. (1)

J. Li, L. Yang, Y. Zhang, J. Zhong, C. Q. Sun, and P. K. Chu, “Pump-power tunable white upconversion emission in lanthanide-doped hexagonal NaYF4 nanorods,” Opt. Mater. 33(6), 882–887 (2011).
[Crossref]

Opt. Mater. Express (1)

RSC Advances (1)

D. Zhao, H. Chen, K. Zheng, X. Chuai, F. Yu, H. Li, C. Wu, G. Qin, W. Di, and W. Qin, “Growth of hexagonal phase sodium rare earth tetrafluorides induced by heterogeneous cubic phase core,” RSC Advances 4(26), 13490–13494 (2014).
[Crossref]

Sci. Rep. (1)

M. Ding, D. Chen, S. Yin, Z. Ji, J. Zhong, Y. Ni, C. Lu, and Z. Xu, “Simultaneous morphology manipulation and upconversion luminescence enhancement of β-NaYF4:Yb3+/Er3+ microcrystals by simply tuning the KF dosage,” Sci. Rep. 5, 12745 (2015).
[Crossref] [PubMed]

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Figures (6)

Fig. 1
Fig. 1 XRD patterns (a) CaF2 core; (b) CaF2@NaYF4:20 mol%Yb, 2 mol%Er HNCs; (c) CaF2 (JCPDS NO. 35-816); (d) β-NaYF4 (JCPDS NO. 16-334)
Fig. 2
Fig. 2 (a) TEM images of CaF2 core NCs; (b) TEM image of CaF2@NaYF4:20 mol%Yb, 2 mol%Er HNCs; (c) Size distribution of CaF2 core NCs; (d) Size distribution of CaF2@NaYF4:20 mol%Yb, 2 mol%Er HNCs; (e) EDX analysis of elemental composition of CaF2@NaYF4:20 mol%Yb, 2 mol%Er HNCs.
Fig. 3
Fig. 3 XRD patterns (left), UCL spectra excited by a 80 mW 980 nm laser (right-top) and corresponding UC photographic (right-bottom) of HNCs samples prepared with different reaction material or different reaction sequence: (a) NaCl as Sodium source, KF as Fluorine source; (b) NaNO3 as Sodium source, KF as Fluorine source; (c) NaF as Sodium source and KF as Fluorine source; (d) KF as Fluorine source in the core growth, NaF as Sodium source and Fluorine source in the shell growth; (e) All the reaction materials of sample (a) was mixed directly (non-core induce).
Fig. 4
Fig. 4 XRD patterns of CaF2@NaYF4:20 mol%Yb, 2 mol%Er HNCs. with shell growth time of (a) 6h; (b) 12h; (c) 24h.
Fig. 5
Fig. 5 (a) The UCL spectra of CaF2@NaYF4:20 mol%Yb, 2 mol%Er, x mol%Tm (x = 0, 0.5, 1, 1.5, 2, 2.5, 3, 4) nanocrystals excited by a 80 mW 980 nm laser; (b) Corresponding UC emission red/green intensity ratio and total luminescence integrated intensity; (c) Photostability of CaF2@NaYF4:20 mol%Yb, 2 mol%Er, 2 mol%Tm NCs. Emission was collected by a 652 nm channel. Time interval of imaging data collection = 0.5 s; (d) UC photographic of nanocrystals water solution excited by a 80 mW 980 nm laser.
Fig. 6
Fig. 6 Energy level diagrams of Er3+ and Tm3+ ions and possible energy transfer mechanism under 980 nm excitation.

Tables (1)

Tables Icon

Table 1 The detail of reaction process and the Crystallographic phase of product.

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