Abstract

In this study, we propose green/red bilayered freestanding phosphor film-capped white light-emitting diodes (W-LEDs) using InGaN blue LEDs and narrowband red and green phosphors to realize a wide color gamut in a liquid crystal display (LCD) backlight system. The narrowband K2SiF6:Mn4+ (KSF) red and SrGa2S4:Eu2+ (SGS) green phosphors are synthesized using a facile etching synthetic process and flux-aided solid state reaction under a H2S atmosphere, respectively, and the freestanding phosphor films are fabricated using a delamination method with water-soluble polymer, polystyrene sulfonic acid, PEDOT/PSS, and interlayered phosphor film. Various phosphor concentrations of green/red bilayered freestanding phosphor film-capped W-LEDs exhibit a correlated color temperature (CCT) and luminous efficacy range of 11,390 K ~6,540 K and 99 lm/W ~124 lm/W, respectively, with an applied current of 60 mA. The W-LED with green (12.5 wt%)/red (40 wt%) bilayered phosphor film, which exhibited luminous efficacy of 105 lm/W at the CCT of 8,330 K, is selected and the color gamut of the bare LED and phosphor RG and the filtered RGB triangle is calculated to be more than ~95% and ~86.4%, respectively, relative to the NTSC in the 1931 CIE color coordinates space.

© 2015 Optical Society of America

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References

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2015 (1)

J. H. Oh, H. Kang, Y. J. Eo, H. K. Park, and Y. R. Do, “Synthesis of narrow-band red-emitting K2SiF6:Mn4+ phosphors for a deep red monochromatic LED and ultrahigh color quality warm-white LEDs,” J. Mater. Chem. C3(3), 607–615 (2015).
[Crossref]

2014 (6)

L. Lv, X. Jiang, S. Huang, X. Chen, and Y. Pan, “The formation mechanism, improved photoluminescence and LED applications of red phosphor K2SiF6:Mn4+,” J. Mater. Chem. C2(20), 3879–3884 (2014).
[Crossref]

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

J. H. Oh, K.-H. Lee, H. C. Yoon, H. Yang, and Y. R. Do, “Color-by-blue display using blue quantum dot light-emitting diodes and green/red color converting phosphors,” Opt. Express22(S2Suppl 2), A511–A520 (2014).
[Crossref] [PubMed]

S.-H. Lee, K.-H. Lee, J.-H. Jo, B. Park, Y. Kwon, H. S. Jang, and H. Yang, “Remote-type, high-color gamut white light-emitting diode vased on InP quantum dot color converters,” Opt. Mater. Express4(7), 1297–1302 (2014).
[Crossref]

Q. Zhang, C.-F. Wang, L.-T. Ling, and S. Chen, “Fluorescent nanomaterial-derived white light-emitting diodes: what’s going on,” J. Mater. Chem. C2(22), 4358–4373 (2014).
[Crossref]

Z. Luo, D. Xu, and S.-T. Wu, “Emerging quantum-dots-enhanced LCDs,” J. Disp. Technol.10(7), 526–539 (2014).
[Crossref]

2013 (5)

C. Liao, R. Cao, Z. Ma, Y. Li, G. Dong, K. N. Sharafudeen, and J. Qiu, “Synthesis of K2SiF6:Mn4+ phosphor from SiO2 powders via redox reaction in HF/KMnO4 solution and their application in warm-white LED,” J. Am. Ceram. Soc.96(11), 3552–3556 (2013).
[Crossref]

S. Coe-Sullivan, W. Liu, P. Allen, and J. S. Steckel, “Quantum dots for LED down conversion in display applications,” ECS J. Solid State Sci. Technol.2(2), R3026–R3030 (2013).
[Crossref]

M. J. Anc, N. L. Pickett, N. C. Gresty, J. A. Harris, and K. C. Mishra, “Progress in non-Cd quantum dot development for lighting applications,” ECS J. Solid State Sci. Technol.2(2), R3071–R3082 (2013).
[Crossref]

A. A. Setlur, R. J. Lyons, J. E. Murphy, N. Prasanth Kumar, and M. Satya Kishore, “Blue light-emitting diode phosphors based upon oxide, oxyhalide, and halide hosts,” ECS J. Solid State Sci. Technol.2(2), R3059–R3070 (2013).
[Crossref]

Z. Luo, Y. Chen, and S. T. Wu, “Wide color gamut LCD with a quantum dot backlight,” Opt. Express21(22), 26269–26284 (2013).
[Crossref] [PubMed]

2012 (4)

J. Kundu, Y. Ghosh, A. M. Dennis, H. Htoon, and J. A. Hollingsworth, “Giant nanocrystal quantum dots: Stable down-conversion phosphors that Exploit a large stokes shift and efficient shell-to-core energy relaxation,” Nano Lett.12(6), 3031–3037 (2012).
[Crossref] [PubMed]

W.-S. Song and H. Yang, “Efficient white-light-emitting diodes fabricated from highly fluorescent copper indium sulfide core/shell quantum dots,” Chem. Mater.24(10), 1961–1967 (2012).
[Crossref]

Y. Fukuda, N. Matsuda, A. Okada, and I. Mitsuishi, “White light-emitting diodes for wide-color-gamut backlight using green-emitting Sr-sialon phosphor,” Jpn. J. Appl. Phys.51(12R), 122101 (2012).
[Crossref]

K. Takahashi, K.-I. Yoshimura, M. Harada, Y. Tomomura, T. Takeda, R.-J. Xie, and N. Hirosaki, “On the origin of fine structure in the photoluminescence spectra of the 𝛽-sialon: Eu2+ green phosphor,” Sci. Technol. Adv. Mater.13(1), 015004 (2012).
[Crossref]

2011 (4)

2010 (1)

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater.22(28), 3076–3080 (2010).
[Crossref] [PubMed]

2009 (2)

K. Fujiwara, H. Jimi, and K. Kaneda, “Temperature-dependent droop of electroluminescence efficiency in blue (In,Ga)N quantum-well diodes,” Phys. Status Solidi C6(S2), S814–S817 (2009).
[Crossref]

R.-J. Xie, N. Hirosaki, and T. Takeda, “Wide color gamut backlight for liquid crystal displays using three-band phosphor converted white light-emitting diodes,” Appl. Phys. Express2, 022401 (2009).
[Crossref]

2007 (3)

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

M. M. R. Krames, O. B. Shchekin, R. Mueller-Mach, G. O. Mueller, L. Zhou, G. Harbers, and M. G. Craford, “Status and future of high-power light-emitting diodes for solid-state lighting,” J. Disp. Technol.3(2), 160–175 (2007).
[Crossref]

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R.-J. Xie, “Extra high color rendering white light-emitting diode lamps using oxynitride and nitride phosphors excited by blue light-emitting diode,” Appl. Phys. Lett.90(5), 051109 (2007).
[Crossref]

2006 (3)

K. Kakinuma, “Technology of wide color gamut backlight with light-emitting diode for liquid crystal display television,” Jpn. J. Appl. Phys.45(5B), 4330–4334 (2006).
[Crossref]

M. Funato, M. Ueda, Y. Kawakami, Y. Narukawa, T. Kosugi, M. Takahashi, and T. Mukai, “Blue, green, and amber InGaN/GaN light-emitting diodes on semipolar {1122} GaN bulk substrates,” Jpn. J. Appl. Phys.45(26), L659–L662 (2006).
[Crossref]

Y. R. Do, K.-Y. Ko, S.-H. Na, and Y.-D. Huh, “Luminescence properties of potential Sr1-xCaxGa2S4:Eu green- and greenish-yellow-emitting phosphors for white LED,” J. Electrochem. Soc.153(7), H142–H146 (2006).
[Crossref]

2002 (1)

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron.8(2), 310–320 (2002).
[Crossref]

Allen, P.

S. Coe-Sullivan, W. Liu, P. Allen, and J. S. Steckel, “Quantum dots for LED down conversion in display applications,” ECS J. Solid State Sci. Technol.2(2), R3026–R3030 (2013).
[Crossref]

Anc, M. J.

M. J. Anc, N. L. Pickett, N. C. Gresty, J. A. Harris, and K. C. Mishra, “Progress in non-Cd quantum dot development for lighting applications,” ECS J. Solid State Sci. Technol.2(2), R3071–R3082 (2013).
[Crossref]

Arai, T.

K. Kakinuma, T. Matsumoto, S. Haga, T. Arai, T. Shirakuma, and H. Shibata, “The first LED backlight for LCD TVs to increase color reproduction range,” Nikkei Electronics123–130 (2004).

Asano, K.

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R.-J. Xie, “Extra high color rendering white light-emitting diode lamps using oxynitride and nitride phosphors excited by blue light-emitting diode,” Appl. Phys. Lett.90(5), 051109 (2007).
[Crossref]

Bhat, J. C.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron.8(2), 310–320 (2002).
[Crossref]

Cao, R.

C. Liao, R. Cao, Z. Ma, Y. Li, G. Dong, K. N. Sharafudeen, and J. Qiu, “Synthesis of K2SiF6:Mn4+ phosphor from SiO2 powders via redox reaction in HF/KMnO4 solution and their application in warm-white LED,” J. Am. Ceram. Soc.96(11), 3552–3556 (2013).
[Crossref]

Chen, S.

Q. Zhang, C.-F. Wang, L.-T. Ling, and S. Chen, “Fluorescent nanomaterial-derived white light-emitting diodes: what’s going on,” J. Mater. Chem. C2(22), 4358–4373 (2014).
[Crossref]

Chen, X.

L. Lv, X. Jiang, S. Huang, X. Chen, and Y. Pan, “The formation mechanism, improved photoluminescence and LED applications of red phosphor K2SiF6:Mn4+,” J. Mater. Chem. C2(20), 3879–3884 (2014).
[Crossref]

Chen, Y.

Cho, S.-H.

Coe-Sullivan, S.

S. Coe-Sullivan, W. Liu, P. Allen, and J. S. Steckel, “Quantum dots for LED down conversion in display applications,” ECS J. Solid State Sci. Technol.2(2), R3026–R3030 (2013).
[Crossref]

Collins, D.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron.8(2), 310–320 (2002).
[Crossref]

Coltrin, M. E.

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

Craford, M. G.

M. M. R. Krames, O. B. Shchekin, R. Mueller-Mach, G. O. Mueller, L. Zhou, G. Harbers, and M. G. Craford, “Status and future of high-power light-emitting diodes for solid-state lighting,” J. Disp. Technol.3(2), 160–175 (2007).
[Crossref]

Crawford, M. H.

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

Dellas, N.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Dennis, A. M.

J. Kundu, Y. Ghosh, A. M. Dennis, H. Htoon, and J. A. Hollingsworth, “Giant nanocrystal quantum dots: Stable down-conversion phosphors that Exploit a large stokes shift and efficient shell-to-core energy relaxation,” Nano Lett.12(6), 3031–3037 (2012).
[Crossref] [PubMed]

Do, Y. R.

Dong, G.

C. Liao, R. Cao, Z. Ma, Y. Li, G. Dong, K. N. Sharafudeen, and J. Qiu, “Synthesis of K2SiF6:Mn4+ phosphor from SiO2 powders via redox reaction in HF/KMnO4 solution and their application in warm-white LED,” J. Am. Ceram. Soc.96(11), 3552–3556 (2013).
[Crossref]

Eo, Y. J.

J. H. Oh, H. Kang, Y. J. Eo, H. K. Park, and Y. R. Do, “Synthesis of narrow-band red-emitting K2SiF6:Mn4+ phosphors for a deep red monochromatic LED and ultrahigh color quality warm-white LEDs,” J. Mater. Chem. C3(3), 607–615 (2015).
[Crossref]

Fischer, A. J.

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

Fletcher, R. M.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron.8(2), 310–320 (2002).
[Crossref]

Fujiwara, K.

K. Fujiwara, H. Jimi, and K. Kaneda, “Temperature-dependent droop of electroluminescence efficiency in blue (In,Ga)N quantum-well diodes,” Phys. Status Solidi C6(S2), S814–S817 (2009).
[Crossref]

Fukuda, Y.

Y. Fukuda, N. Matsuda, A. Okada, and I. Mitsuishi, “White light-emitting diodes for wide-color-gamut backlight using green-emitting Sr-sialon phosphor,” Jpn. J. Appl. Phys.51(12R), 122101 (2012).
[Crossref]

Funato, M.

M. Funato, M. Ueda, Y. Kawakami, Y. Narukawa, T. Kosugi, M. Takahashi, and T. Mukai, “Blue, green, and amber InGaN/GaN light-emitting diodes on semipolar {1122} GaN bulk substrates,” Jpn. J. Appl. Phys.45(26), L659–L662 (2006).
[Crossref]

Ghosh, Y.

J. Kundu, Y. Ghosh, A. M. Dennis, H. Htoon, and J. A. Hollingsworth, “Giant nanocrystal quantum dots: Stable down-conversion phosphors that Exploit a large stokes shift and efficient shell-to-core energy relaxation,” Nano Lett.12(6), 3031–3037 (2012).
[Crossref] [PubMed]

Gresty, N. C.

M. J. Anc, N. L. Pickett, N. C. Gresty, J. A. Harris, and K. C. Mishra, “Progress in non-Cd quantum dot development for lighting applications,” ECS J. Solid State Sci. Technol.2(2), R3071–R3082 (2013).
[Crossref]

Haga, S.

K. Kakinuma, T. Matsumoto, S. Haga, T. Arai, T. Shirakuma, and H. Shibata, “The first LED backlight for LCD TVs to increase color reproduction range,” Nikkei Electronics123–130 (2004).

Harada, M.

K. Takahashi, K.-I. Yoshimura, M. Harada, Y. Tomomura, T. Takeda, R.-J. Xie, and N. Hirosaki, “On the origin of fine structure in the photoluminescence spectra of the 𝛽-sialon: Eu2+ green phosphor,” Sci. Technol. Adv. Mater.13(1), 015004 (2012).
[Crossref]

Harbers, G.

M. M. R. Krames, O. B. Shchekin, R. Mueller-Mach, G. O. Mueller, L. Zhou, G. Harbers, and M. G. Craford, “Status and future of high-power light-emitting diodes for solid-state lighting,” J. Disp. Technol.3(2), 160–175 (2007).
[Crossref]

Harris, J. A.

M. J. Anc, N. L. Pickett, N. C. Gresty, J. A. Harris, and K. C. Mishra, “Progress in non-Cd quantum dot development for lighting applications,” ECS J. Solid State Sci. Technol.2(2), R3071–R3082 (2013).
[Crossref]

Hecht, C.

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

Henß, A.-K.

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

Hirafune, S.

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R.-J. Xie, “Extra high color rendering white light-emitting diode lamps using oxynitride and nitride phosphors excited by blue light-emitting diode,” Appl. Phys. Lett.90(5), 051109 (2007).
[Crossref]

Hirosaki, N.

K. Takahashi, K.-I. Yoshimura, M. Harada, Y. Tomomura, T. Takeda, R.-J. Xie, and N. Hirosaki, “On the origin of fine structure in the photoluminescence spectra of the 𝛽-sialon: Eu2+ green phosphor,” Sci. Technol. Adv. Mater.13(1), 015004 (2012).
[Crossref]

R.-J. Xie, N. Hirosaki, and T. Takeda, “Wide color gamut backlight for liquid crystal displays using three-band phosphor converted white light-emitting diodes,” Appl. Phys. Express2, 022401 (2009).
[Crossref]

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R.-J. Xie, “Extra high color rendering white light-emitting diode lamps using oxynitride and nitride phosphors excited by blue light-emitting diode,” Appl. Phys. Lett.90(5), 051109 (2007).
[Crossref]

Holcomb, M. O.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron.8(2), 310–320 (2002).
[Crossref]

Hollingsworth, J. A.

J. Kundu, Y. Ghosh, A. M. Dennis, H. Htoon, and J. A. Hollingsworth, “Giant nanocrystal quantum dots: Stable down-conversion phosphors that Exploit a large stokes shift and efficient shell-to-core energy relaxation,” Nano Lett.12(6), 3031–3037 (2012).
[Crossref] [PubMed]

Htoon, H.

J. Kundu, Y. Ghosh, A. M. Dennis, H. Htoon, and J. A. Hollingsworth, “Giant nanocrystal quantum dots: Stable down-conversion phosphors that Exploit a large stokes shift and efficient shell-to-core energy relaxation,” Nano Lett.12(6), 3031–3037 (2012).
[Crossref] [PubMed]

Huang, S.

L. Lv, X. Jiang, S. Huang, X. Chen, and Y. Pan, “The formation mechanism, improved photoluminescence and LED applications of red phosphor K2SiF6:Mn4+,” J. Mater. Chem. C2(20), 3879–3884 (2014).
[Crossref]

Huh, Y.-D.

Y. R. Do, K.-Y. Ko, S.-H. Na, and Y.-D. Huh, “Luminescence properties of potential Sr1-xCaxGa2S4:Eu green- and greenish-yellow-emitting phosphors for white LED,” J. Electrochem. Soc.153(7), H142–H146 (2006).
[Crossref]

Jang, E.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater.22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Jang, H.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater.22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Jang, H. S.

Jiang, X.

L. Lv, X. Jiang, S. Huang, X. Chen, and Y. Pan, “The formation mechanism, improved photoluminescence and LED applications of red phosphor K2SiF6:Mn4+,” J. Mater. Chem. C2(20), 3879–3884 (2014).
[Crossref]

Jimi, H.

K. Fujiwara, H. Jimi, and K. Kaneda, “Temperature-dependent droop of electroluminescence efficiency in blue (In,Ga)N quantum-well diodes,” Phys. Status Solidi C6(S2), S814–S817 (2009).
[Crossref]

Jo, J.-H.

Jun, S.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater.22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Kakinuma, K.

K. Kakinuma, “Technology of wide color gamut backlight with light-emitting diode for liquid crystal display television,” Jpn. J. Appl. Phys.45(5B), 4330–4334 (2006).
[Crossref]

K. Kakinuma, T. Matsumoto, S. Haga, T. Arai, T. Shirakuma, and H. Shibata, “The first LED backlight for LCD TVs to increase color reproduction range,” Nikkei Electronics123–130 (2004).

Kaneda, K.

K. Fujiwara, H. Jimi, and K. Kaneda, “Temperature-dependent droop of electroluminescence efficiency in blue (In,Ga)N quantum-well diodes,” Phys. Status Solidi C6(S2), S814–S817 (2009).
[Crossref]

Kang, H.

J. H. Oh, H. Kang, Y. J. Eo, H. K. Park, and Y. R. Do, “Synthesis of narrow-band red-emitting K2SiF6:Mn4+ phosphors for a deep red monochromatic LED and ultrahigh color quality warm-white LEDs,” J. Mater. Chem. C3(3), 607–615 (2015).
[Crossref]

Kawakami, Y.

M. Funato, M. Ueda, Y. Kawakami, Y. Narukawa, T. Kosugi, M. Takahashi, and T. Mukai, “Blue, green, and amber InGaN/GaN light-emitting diodes on semipolar {1122} GaN bulk substrates,” Jpn. J. Appl. Phys.45(26), L659–L662 (2006).
[Crossref]

Kim, B.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater.22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Kim, W.

Kim, Y.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater.22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Kim, Y.-K.

Kimura, N.

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R.-J. Xie, “Extra high color rendering white light-emitting diode lamps using oxynitride and nitride phosphors excited by blue light-emitting diode,” Appl. Phys. Lett.90(5), 051109 (2007).
[Crossref]

Ko, K.-Y.

Y. R. Do, K.-Y. Ko, S.-H. Na, and Y.-D. Huh, “Luminescence properties of potential Sr1-xCaxGa2S4:Eu green- and greenish-yellow-emitting phosphors for white LED,” J. Electrochem. Soc.153(7), H142–H146 (2006).
[Crossref]

Kosugi, T.

M. Funato, M. Ueda, Y. Kawakami, Y. Narukawa, T. Kosugi, M. Takahashi, and T. Mukai, “Blue, green, and amber InGaN/GaN light-emitting diodes on semipolar {1122} GaN bulk substrates,” Jpn. J. Appl. Phys.45(26), L659–L662 (2006).
[Crossref]

Kouh, T.

Krames, M. M. R.

M. M. R. Krames, O. B. Shchekin, R. Mueller-Mach, G. O. Mueller, L. Zhou, G. Harbers, and M. G. Craford, “Status and future of high-power light-emitting diodes for solid-state lighting,” J. Disp. Technol.3(2), 160–175 (2007).
[Crossref]

Krames, M. R.

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

Kundu, J.

J. Kundu, Y. Ghosh, A. M. Dennis, H. Htoon, and J. A. Hollingsworth, “Giant nanocrystal quantum dots: Stable down-conversion phosphors that Exploit a large stokes shift and efficient shell-to-core energy relaxation,” Nano Lett.12(6), 3031–3037 (2012).
[Crossref] [PubMed]

Kwon, Y.

Lee, K.-H.

Lee, S.-H.

Lee, Y.-H.

Li, Y.

C. Liao, R. Cao, Z. Ma, Y. Li, G. Dong, K. N. Sharafudeen, and J. Qiu, “Synthesis of K2SiF6:Mn4+ phosphor from SiO2 powders via redox reaction in HF/KMnO4 solution and their application in warm-white LED,” J. Am. Ceram. Soc.96(11), 3552–3556 (2013).
[Crossref]

Liao, C.

C. Liao, R. Cao, Z. Ma, Y. Li, G. Dong, K. N. Sharafudeen, and J. Qiu, “Synthesis of K2SiF6:Mn4+ phosphor from SiO2 powders via redox reaction in HF/KMnO4 solution and their application in warm-white LED,” J. Am. Ceram. Soc.96(11), 3552–3556 (2013).
[Crossref]

Lim, J.

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater.22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Ling, L.-T.

Q. Zhang, C.-F. Wang, L.-T. Ling, and S. Chen, “Fluorescent nanomaterial-derived white light-emitting diodes: what’s going on,” J. Mater. Chem. C2(22), 4358–4373 (2014).
[Crossref]

Liu, J.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Liu, W.

S. Coe-Sullivan, W. Liu, P. Allen, and J. S. Steckel, “Quantum dots for LED down conversion in display applications,” ECS J. Solid State Sci. Technol.2(2), R3026–R3030 (2013).
[Crossref]

Ludowise, M. J.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron.8(2), 310–320 (2002).
[Crossref]

Luo, Z.

Z. Luo, D. Xu, and S.-T. Wu, “Emerging quantum-dots-enhanced LCDs,” J. Disp. Technol.10(7), 526–539 (2014).
[Crossref]

Z. Luo, Y. Chen, and S. T. Wu, “Wide color gamut LCD with a quantum dot backlight,” Opt. Express21(22), 26269–26284 (2013).
[Crossref] [PubMed]

Lv, L.

L. Lv, X. Jiang, S. Huang, X. Chen, and Y. Pan, “The formation mechanism, improved photoluminescence and LED applications of red phosphor K2SiF6:Mn4+,” J. Mater. Chem. C2(20), 3879–3884 (2014).
[Crossref]

Lyons, R. J.

A. A. Setlur, R. J. Lyons, J. E. Murphy, N. Prasanth Kumar, and M. Satya Kishore, “Blue light-emitting diode phosphors based upon oxide, oxyhalide, and halide hosts,” ECS J. Solid State Sci. Technol.2(2), R3059–R3070 (2013).
[Crossref]

Ma, Z.

C. Liao, R. Cao, Z. Ma, Y. Li, G. Dong, K. N. Sharafudeen, and J. Qiu, “Synthesis of K2SiF6:Mn4+ phosphor from SiO2 powders via redox reaction in HF/KMnO4 solution and their application in warm-white LED,” J. Am. Ceram. Soc.96(11), 3552–3556 (2013).
[Crossref]

Martin, P. S.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron.8(2), 310–320 (2002).
[Crossref]

Matsuda, N.

Y. Fukuda, N. Matsuda, A. Okada, and I. Mitsuishi, “White light-emitting diodes for wide-color-gamut backlight using green-emitting Sr-sialon phosphor,” Jpn. J. Appl. Phys.51(12R), 122101 (2012).
[Crossref]

Matsumoto, T.

K. Kakinuma, T. Matsumoto, S. Haga, T. Arai, T. Shirakuma, and H. Shibata, “The first LED backlight for LCD TVs to increase color reproduction range,” Nikkei Electronics123–130 (2004).

Mishra, K. C.

M. J. Anc, N. L. Pickett, N. C. Gresty, J. A. Harris, and K. C. Mishra, “Progress in non-Cd quantum dot development for lighting applications,” ECS J. Solid State Sci. Technol.2(2), R3071–R3082 (2013).
[Crossref]

Mitsuishi, I.

Y. Fukuda, N. Matsuda, A. Okada, and I. Mitsuishi, “White light-emitting diodes for wide-color-gamut backlight using green-emitting Sr-sialon phosphor,” Jpn. J. Appl. Phys.51(12R), 122101 (2012).
[Crossref]

Mohney, S. E.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Mueller, G. O.

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

M. M. R. Krames, O. B. Shchekin, R. Mueller-Mach, G. O. Mueller, L. Zhou, G. Harbers, and M. G. Craford, “Status and future of high-power light-emitting diodes for solid-state lighting,” J. Disp. Technol.3(2), 160–175 (2007).
[Crossref]

Mueller-Mach, R.

M. M. R. Krames, O. B. Shchekin, R. Mueller-Mach, G. O. Mueller, L. Zhou, G. Harbers, and M. G. Craford, “Status and future of high-power light-emitting diodes for solid-state lighting,” J. Disp. Technol.3(2), 160–175 (2007).
[Crossref]

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

Mukai, T.

M. Funato, M. Ueda, Y. Kawakami, Y. Narukawa, T. Kosugi, M. Takahashi, and T. Mukai, “Blue, green, and amber InGaN/GaN light-emitting diodes on semipolar {1122} GaN bulk substrates,” Jpn. J. Appl. Phys.45(26), L659–L662 (2006).
[Crossref]

Murphy, J. E.

A. A. Setlur, R. J. Lyons, J. E. Murphy, N. Prasanth Kumar, and M. Satya Kishore, “Blue light-emitting diode phosphors based upon oxide, oxyhalide, and halide hosts,” ECS J. Solid State Sci. Technol.2(2), R3059–R3070 (2013).
[Crossref]

Na, S.-H.

Y. R. Do, K.-Y. Ko, S.-H. Na, and Y.-D. Huh, “Luminescence properties of potential Sr1-xCaxGa2S4:Eu green- and greenish-yellow-emitting phosphors for white LED,” J. Electrochem. Soc.153(7), H142–H146 (2006).
[Crossref]

Narukawa, Y.

M. Funato, M. Ueda, Y. Kawakami, Y. Narukawa, T. Kosugi, M. Takahashi, and T. Mukai, “Blue, green, and amber InGaN/GaN light-emitting diodes on semipolar {1122} GaN bulk substrates,” Jpn. J. Appl. Phys.45(26), L659–L662 (2006).
[Crossref]

Oh, J. H.

Oh, J. R.

Ohno, Y.

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

Okada, A.

Y. Fukuda, N. Matsuda, A. Okada, and I. Mitsuishi, “White light-emitting diodes for wide-color-gamut backlight using green-emitting Sr-sialon phosphor,” Jpn. J. Appl. Phys.51(12R), 122101 (2012).
[Crossref]

Pan, Y.

L. Lv, X. Jiang, S. Huang, X. Chen, and Y. Pan, “The formation mechanism, improved photoluminescence and LED applications of red phosphor K2SiF6:Mn4+,” J. Mater. Chem. C2(20), 3879–3884 (2014).
[Crossref]

Park, B.

Park, H. K.

Phillips, J. M.

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

Pickett, N. L.

M. J. Anc, N. L. Pickett, N. C. Gresty, J. A. Harris, and K. C. Mishra, “Progress in non-Cd quantum dot development for lighting applications,” ECS J. Solid State Sci. Technol.2(2), R3071–R3082 (2013).
[Crossref]

Prasanth Kumar, N.

A. A. Setlur, R. J. Lyons, J. E. Murphy, N. Prasanth Kumar, and M. Satya Kishore, “Blue light-emitting diode phosphors based upon oxide, oxyhalide, and halide hosts,” ECS J. Solid State Sci. Technol.2(2), R3059–R3070 (2013).
[Crossref]

Pust, P.

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

Qiu, J.

C. Liao, R. Cao, Z. Ma, Y. Li, G. Dong, K. N. Sharafudeen, and J. Qiu, “Synthesis of K2SiF6:Mn4+ phosphor from SiO2 powders via redox reaction in HF/KMnO4 solution and their application in warm-white LED,” J. Am. Ceram. Soc.96(11), 3552–3556 (2013).
[Crossref]

Rohwer, L. E. S.

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

Rudaz, S. L.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron.8(2), 310–320 (2002).
[Crossref]

Sakuma, K.

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R.-J. Xie, “Extra high color rendering white light-emitting diode lamps using oxynitride and nitride phosphors excited by blue light-emitting diode,” Appl. Phys. Lett.90(5), 051109 (2007).
[Crossref]

Satya Kishore, M.

A. A. Setlur, R. J. Lyons, J. E. Murphy, N. Prasanth Kumar, and M. Satya Kishore, “Blue light-emitting diode phosphors based upon oxide, oxyhalide, and halide hosts,” ECS J. Solid State Sci. Technol.2(2), R3059–R3070 (2013).
[Crossref]

Scheu, C.

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

Schmidt, P. J.

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

Schnick, W.

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

Setlur, A. A.

A. A. Setlur, R. J. Lyons, J. E. Murphy, N. Prasanth Kumar, and M. Satya Kishore, “Blue light-emitting diode phosphors based upon oxide, oxyhalide, and halide hosts,” ECS J. Solid State Sci. Technol.2(2), R3059–R3070 (2013).
[Crossref]

Sharafudeen, K. N.

C. Liao, R. Cao, Z. Ma, Y. Li, G. Dong, K. N. Sharafudeen, and J. Qiu, “Synthesis of K2SiF6:Mn4+ phosphor from SiO2 powders via redox reaction in HF/KMnO4 solution and their application in warm-white LED,” J. Am. Ceram. Soc.96(11), 3552–3556 (2013).
[Crossref]

Shchekin, O. B.

M. M. R. Krames, O. B. Shchekin, R. Mueller-Mach, G. O. Mueller, L. Zhou, G. Harbers, and M. G. Craford, “Status and future of high-power light-emitting diodes for solid-state lighting,” J. Disp. Technol.3(2), 160–175 (2007).
[Crossref]

Shibata, H.

K. Kakinuma, T. Matsumoto, S. Haga, T. Arai, T. Shirakuma, and H. Shibata, “The first LED backlight for LCD TVs to increase color reproduction range,” Nikkei Electronics123–130 (2004).

Shirakuma, T.

K. Kakinuma, T. Matsumoto, S. Haga, T. Arai, T. Shirakuma, and H. Shibata, “The first LED backlight for LCD TVs to increase color reproduction range,” Nikkei Electronics123–130 (2004).

Simmons, J. A.

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

Song, W.-S.

W.-S. Song and H. Yang, “Efficient white-light-emitting diodes fabricated from highly fluorescent copper indium sulfide core/shell quantum dots,” Chem. Mater.24(10), 1961–1967 (2012).
[Crossref]

Steckel, J. S.

S. Coe-Sullivan, W. Liu, P. Allen, and J. S. Steckel, “Quantum dots for LED down conversion in display applications,” ECS J. Solid State Sci. Technol.2(2), R3026–R3030 (2013).
[Crossref]

Steigerwald, D. A.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron.8(2), 310–320 (2002).
[Crossref]

Su, H.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Sung, Y.-G.

Takahashi, K.

K. Takahashi, K.-I. Yoshimura, M. Harada, Y. Tomomura, T. Takeda, R.-J. Xie, and N. Hirosaki, “On the origin of fine structure in the photoluminescence spectra of the 𝛽-sialon: Eu2+ green phosphor,” Sci. Technol. Adv. Mater.13(1), 015004 (2012).
[Crossref]

Takahashi, M.

M. Funato, M. Ueda, Y. Kawakami, Y. Narukawa, T. Kosugi, M. Takahashi, and T. Mukai, “Blue, green, and amber InGaN/GaN light-emitting diodes on semipolar {1122} GaN bulk substrates,” Jpn. J. Appl. Phys.45(26), L659–L662 (2006).
[Crossref]

Takeda, T.

K. Takahashi, K.-I. Yoshimura, M. Harada, Y. Tomomura, T. Takeda, R.-J. Xie, and N. Hirosaki, “On the origin of fine structure in the photoluminescence spectra of the 𝛽-sialon: Eu2+ green phosphor,” Sci. Technol. Adv. Mater.13(1), 015004 (2012).
[Crossref]

R.-J. Xie, N. Hirosaki, and T. Takeda, “Wide color gamut backlight for liquid crystal displays using three-band phosphor converted white light-emitting diodes,” Appl. Phys. Express2, 022401 (2009).
[Crossref]

Tan, Z.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Tomomura, Y.

K. Takahashi, K.-I. Yoshimura, M. Harada, Y. Tomomura, T. Takeda, R.-J. Xie, and N. Hirosaki, “On the origin of fine structure in the photoluminescence spectra of the 𝛽-sialon: Eu2+ green phosphor,” Sci. Technol. Adv. Mater.13(1), 015004 (2012).
[Crossref]

Tsao, J. Y.

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
[Crossref]

Tücks, A.

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

Ueda, M.

M. Funato, M. Ueda, Y. Kawakami, Y. Narukawa, T. Kosugi, M. Takahashi, and T. Mukai, “Blue, green, and amber InGaN/GaN light-emitting diodes on semipolar {1122} GaN bulk substrates,” Jpn. J. Appl. Phys.45(26), L659–L662 (2006).
[Crossref]

Wang, C.-F.

Q. Zhang, C.-F. Wang, L.-T. Ling, and S. Chen, “Fluorescent nanomaterial-derived white light-emitting diodes: what’s going on,” J. Mater. Chem. C2(22), 4358–4373 (2014).
[Crossref]

Wang, J.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Wang, Y.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Weiler, V.

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

Wiechert, D.

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

Wochnik, A. S.

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
[Crossref] [PubMed]

Wu, S. T.

Wu, S.-T.

Z. Luo, D. Xu, and S.-T. Wu, “Emerging quantum-dots-enhanced LCDs,” J. Disp. Technol.10(7), 526–539 (2014).
[Crossref]

Xie, C.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Xie, R.-J.

K. Takahashi, K.-I. Yoshimura, M. Harada, Y. Tomomura, T. Takeda, R.-J. Xie, and N. Hirosaki, “On the origin of fine structure in the photoluminescence spectra of the 𝛽-sialon: Eu2+ green phosphor,” Sci. Technol. Adv. Mater.13(1), 015004 (2012).
[Crossref]

R.-J. Xie, N. Hirosaki, and T. Takeda, “Wide color gamut backlight for liquid crystal displays using three-band phosphor converted white light-emitting diodes,” Appl. Phys. Express2, 022401 (2009).
[Crossref]

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R.-J. Xie, “Extra high color rendering white light-emitting diode lamps using oxynitride and nitride phosphors excited by blue light-emitting diode,” Appl. Phys. Lett.90(5), 051109 (2007).
[Crossref]

Xu, D.

Z. Luo, D. Xu, and S.-T. Wu, “Emerging quantum-dots-enhanced LCDs,” J. Disp. Technol.10(7), 526–539 (2014).
[Crossref]

Xu, J.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Yang, H.

Yoon, H. C.

Yoshimura, K.-I.

K. Takahashi, K.-I. Yoshimura, M. Harada, Y. Tomomura, T. Takeda, R.-J. Xie, and N. Hirosaki, “On the origin of fine structure in the photoluminescence spectra of the 𝛽-sialon: Eu2+ green phosphor,” Sci. Technol. Adv. Mater.13(1), 015004 (2012).
[Crossref]

Zhang, C.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Zhang, Q.

Q. Zhang, C.-F. Wang, L.-T. Ling, and S. Chen, “Fluorescent nanomaterial-derived white light-emitting diodes: what’s going on,” J. Mater. Chem. C2(22), 4358–4373 (2014).
[Crossref]

Zhang, Y.

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Zhou, L.

M. M. R. Krames, O. B. Shchekin, R. Mueller-Mach, G. O. Mueller, L. Zhou, G. Harbers, and M. G. Craford, “Status and future of high-power light-emitting diodes for solid-state lighting,” J. Disp. Technol.3(2), 160–175 (2007).
[Crossref]

Adv. Mater. (2)

E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater.22(28), 3076–3080 (2010).
[Crossref] [PubMed]

Z. Tan, Y. Zhang, C. Xie, H. Su, J. Liu, C. Zhang, N. Dellas, S. E. Mohney, Y. Wang, J. Wang, and J. Xu, “Near-band-edge electroluminescence from heavy-metal-free colloidal quantum dots,” Adv. Mater.23(31), 3553–3558 (2011).
[Crossref] [PubMed]

Appl. Phys. Express (1)

R.-J. Xie, N. Hirosaki, and T. Takeda, “Wide color gamut backlight for liquid crystal displays using three-band phosphor converted white light-emitting diodes,” Appl. Phys. Express2, 022401 (2009).
[Crossref]

Appl. Phys. Lett. (1)

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R.-J. Xie, “Extra high color rendering white light-emitting diode lamps using oxynitride and nitride phosphors excited by blue light-emitting diode,” Appl. Phys. Lett.90(5), 051109 (2007).
[Crossref]

Chem. Mater. (1)

W.-S. Song and H. Yang, “Efficient white-light-emitting diodes fabricated from highly fluorescent copper indium sulfide core/shell quantum dots,” Chem. Mater.24(10), 1961–1967 (2012).
[Crossref]

ECS J. Solid State Sci. Technol. (3)

M. J. Anc, N. L. Pickett, N. C. Gresty, J. A. Harris, and K. C. Mishra, “Progress in non-Cd quantum dot development for lighting applications,” ECS J. Solid State Sci. Technol.2(2), R3071–R3082 (2013).
[Crossref]

S. Coe-Sullivan, W. Liu, P. Allen, and J. S. Steckel, “Quantum dots for LED down conversion in display applications,” ECS J. Solid State Sci. Technol.2(2), R3026–R3030 (2013).
[Crossref]

A. A. Setlur, R. J. Lyons, J. E. Murphy, N. Prasanth Kumar, and M. Satya Kishore, “Blue light-emitting diode phosphors based upon oxide, oxyhalide, and halide hosts,” ECS J. Solid State Sci. Technol.2(2), R3059–R3070 (2013).
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IEEE J. Sel. Top. Quantum Electron. (1)

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron.8(2), 310–320 (2002).
[Crossref]

J. Am. Ceram. Soc. (1)

C. Liao, R. Cao, Z. Ma, Y. Li, G. Dong, K. N. Sharafudeen, and J. Qiu, “Synthesis of K2SiF6:Mn4+ phosphor from SiO2 powders via redox reaction in HF/KMnO4 solution and their application in warm-white LED,” J. Am. Ceram. Soc.96(11), 3552–3556 (2013).
[Crossref]

J. Disp. Technol. (2)

Z. Luo, D. Xu, and S.-T. Wu, “Emerging quantum-dots-enhanced LCDs,” J. Disp. Technol.10(7), 526–539 (2014).
[Crossref]

M. M. R. Krames, O. B. Shchekin, R. Mueller-Mach, G. O. Mueller, L. Zhou, G. Harbers, and M. G. Craford, “Status and future of high-power light-emitting diodes for solid-state lighting,” J. Disp. Technol.3(2), 160–175 (2007).
[Crossref]

J. Electrochem. Soc. (1)

Y. R. Do, K.-Y. Ko, S.-H. Na, and Y.-D. Huh, “Luminescence properties of potential Sr1-xCaxGa2S4:Eu green- and greenish-yellow-emitting phosphors for white LED,” J. Electrochem. Soc.153(7), H142–H146 (2006).
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J. Mater. Chem. C (3)

L. Lv, X. Jiang, S. Huang, X. Chen, and Y. Pan, “The formation mechanism, improved photoluminescence and LED applications of red phosphor K2SiF6:Mn4+,” J. Mater. Chem. C2(20), 3879–3884 (2014).
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J. H. Oh, H. Kang, Y. J. Eo, H. K. Park, and Y. R. Do, “Synthesis of narrow-band red-emitting K2SiF6:Mn4+ phosphors for a deep red monochromatic LED and ultrahigh color quality warm-white LEDs,” J. Mater. Chem. C3(3), 607–615 (2015).
[Crossref]

Q. Zhang, C.-F. Wang, L.-T. Ling, and S. Chen, “Fluorescent nanomaterial-derived white light-emitting diodes: what’s going on,” J. Mater. Chem. C2(22), 4358–4373 (2014).
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Jpn. J. Appl. Phys. (3)

Y. Fukuda, N. Matsuda, A. Okada, and I. Mitsuishi, “White light-emitting diodes for wide-color-gamut backlight using green-emitting Sr-sialon phosphor,” Jpn. J. Appl. Phys.51(12R), 122101 (2012).
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K. Kakinuma, “Technology of wide color gamut backlight with light-emitting diode for liquid crystal display television,” Jpn. J. Appl. Phys.45(5B), 4330–4334 (2006).
[Crossref]

M. Funato, M. Ueda, Y. Kawakami, Y. Narukawa, T. Kosugi, M. Takahashi, and T. Mukai, “Blue, green, and amber InGaN/GaN light-emitting diodes on semipolar {1122} GaN bulk substrates,” Jpn. J. Appl. Phys.45(26), L659–L662 (2006).
[Crossref]

Laser Photonics Rev. (1)

J. M. Phillips, M. E. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid-state lighting,” Laser Photonics Rev.1(4), 307–333 (2007).
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Nano Lett. (1)

J. Kundu, Y. Ghosh, A. M. Dennis, H. Htoon, and J. A. Hollingsworth, “Giant nanocrystal quantum dots: Stable down-conversion phosphors that Exploit a large stokes shift and efficient shell-to-core energy relaxation,” Nano Lett.12(6), 3031–3037 (2012).
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Nat. Mater. (1)

P. Pust, V. Weiler, C. Hecht, A. Tücks, A. S. Wochnik, A.-K. Henß, D. Wiechert, C. Scheu, P. J. Schmidt, and W. Schnick, “Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material,” Nat. Mater.13(9), 891–896 (2014).
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Opt. Express (5)

Opt. Mater. Express (1)

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K. Fujiwara, H. Jimi, and K. Kaneda, “Temperature-dependent droop of electroluminescence efficiency in blue (In,Ga)N quantum-well diodes,” Phys. Status Solidi C6(S2), S814–S817 (2009).
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Sci. Technol. Adv. Mater. (1)

K. Takahashi, K.-I. Yoshimura, M. Harada, Y. Tomomura, T. Takeda, R.-J. Xie, and N. Hirosaki, “On the origin of fine structure in the photoluminescence spectra of the 𝛽-sialon: Eu2+ green phosphor,” Sci. Technol. Adv. Mater.13(1), 015004 (2012).
[Crossref]

Other (2)

K. Kakinuma, T. Matsumoto, S. Haga, T. Arai, T. Shirakuma, and H. Shibata, “The first LED backlight for LCD TVs to increase color reproduction range,” Nikkei Electronics123–130 (2004).

www.lumileds.com/uploads/215/AB27-PDF , Luxeon DCC for LCD backlighting application brief AB27 (01/05).

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Figures (9)

Fig. 1
Fig. 1 Powder XRDs of the (a) KSF red phosphor (JCPDS card no. 85-1382 (K2SiF6)) and (b) SGS green phosphor (JCPDS card no. 25-0895 (SrGa2S4)). FE-SEM and EDS data of the (c) KSF red phosphor and (d) SGS green phosphor. Emission and excitation spectra of the (e) KSF red phosphor and (f) SGS green phosphor.
Fig. 2
Fig. 2 (a) Normalized emission spectra and (b) 1931 CIE color coordinates of the KSF red phosphor, SGS green phosphor and InGaN blue LED.
Fig. 3
Fig. 3 (a) Schematic of the fabrication process and photograph images of the freestanding phosphor films. Cross-sectional FE-SEM images of the freestanding (b) green and (c) red phosphor film. (d) Schematic diagram of the freestanding phosphor film-capped W-LED.
Fig. 4
Fig. 4 The optical properties of the green and red remote-type freestanding films on the InGaN blue LED as a function of phosphor concentrations. Emission spectra of the (a) green and (b) red phosphors; 1931 CIE color coordinates of the (c) green and (d) red phosphors.
Fig. 5
Fig. 5 The EL emission spectra of the green/red bilayered freestanding phosphor film-capped WLEDs as a function of the green phosphor concentrations. (a) red 20 wt%, (b) red 30 wt%, (c) red 40 wt%, and (d) red 50 wt%.
Fig. 6
Fig. 6 The optical properties of the green/red bilayered freestanding phosphor film-capped WLEDs as a function of the green and red phosphor concentrations. (a) The 1931 CIE color coordinates, (b) luminous efficacy, (c) CCTs, and (d) calculated NTSC.
Fig. 7
Fig. 7 (a) Transmittance spectra of the blue, green and red color filters. (b) Photographs of the the green (12.5 wt%)/red (40 wt%) bilayered phosphor film-capped W-LED and RGB color filtered W-LED. (c) The emission spectrum of the green (12.5 wt%)/red (40 wt%) bilayered phosphor film-capped W-LED and the calculated RGB spectra. (d) The 1931 CIE color coordinates of the NTSC standard and the calculated RGB from green (12.5 wt%)/red (40 wt%) bilayered phosphor film-capped W-LED.
Fig. 8
Fig. 8 (a) PL emission spectrum and (b) 1931 CIE color coordinates of silicate G, YAG Y, CASN R phosphors. (c) EL emission spectrum and calculated color filtered spectrum and (b) 1931 CIE color coordinates of YAG Y (15 wt%) single layered phosphor film-capped W-LED. (e) EL emission spectrum and calculated color filtered spectrum and (f) 1931 CIE color coordinates of silicate G (30 wt%)/CASN R (2.5 wt%) bilayered phosphor film-capped W-LED. (insets: schematic diagram of phosphor film-capped W-LED).
Fig. 9
Fig. 9 Current dependence of the green (12.5 wt%)/red (40 wt%) bilayered phosphor film-capped W-LED: (a) luminous flux and luminous efficacy and (b) 1931 CIE color coordinates. Temperature dependence of the green (12.5 wt%)/red (40 wt%) bilayered phosphor film-capped W-LEDs: (c) luminous flux and luminous efficacy and (d) 1931 CIE color coordinates.

Tables (1)

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Table 1 Optical properties of remote-type white LEDs using freestanding phosphor films.

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