Abstract

Transparent and colorless Ce3+-activated borogermanate glasses, with the nominal molar composition of 25B2O3-40GeO2-34Gd2O3-1CeO2-0.31Si3N4, were synthesized by melt-quenching method at different melting temperature in 1350-1450 °C region. Both the optical transmittance and X-ray absorption near edge spectroscopy (XANES) results confirm that Ce4+ can be effectively reduced to Ce3+ ions assisted with 0.31 mol% Si3N4 in air. The luminescence behaviour of Ce3+-activated borogermanate glasses excited by ultraviolet and X-ray light and to be dependent on the melting temperature, i.e. the luminescence intensity of Ce3+ ions in borogermante glass increases remarkably with an increasing in melting temperature. The possible enhanced mechanism is discussed by glass density and energy-dispersive spectroscopy (EDS) results.

© 2015 Optical Society of America

1. Introduction

Scintillating glass shows a promising alternative to scintillating crystals or ceramics owing to the advantages of its low-cost, large-volume production, and easy shaping of elements [13]. In recent years, fast Ce3+-activated scintillating glasses above 5.0 g/cm3 have received intensive attentions in the fields of high energy nuclear physics and medical imaging [47]. However, the reducing atmosphere provided by either CO or H2/N2 mixed gases is necessary to reduce Ce4+ to Ce3+ as completely as possible during glass synthesis, which not only complicates the experimental process, but also increases the production cost. Interestingly, we have successfully synthesized Ce3+-activated borogermanate glasses in air atmosphere by adding the strong reducing Si3N4 agent [8]. Furthermore, the relatively low light-yield of scintillating glasses derived from the intermediate- and long-range disorder structure may be one of the most difficult obstacles on the practical way. To some extent, the shortcoming of the low light-yield mentioned can be compensated by the strategies of energy transfer or nanocrystallization of the precursor glass to form transparent glass-ceramic [7, 9].

To our knowledge, there are a few reports on the bismuth-doped luminescent glasses induced by the melting temperature [1012], and the valent states of bismuth ion can be conveniently controlled by tailing the melting temperature, which results in different luminescence properties. However, there is no report on luminescence behaviors of Ce3+-doped glass induced by melting temperature. Therefore, in this work, we have easily enhanced the light-yield of Ce3+-activated borogermanate glasses only by tailoring the melting temperature. A deep insight into the luminescent properties of Ce3+-activated scintillating glasses is given by the optical transmittance, X-ray absorption near edge spectroscopy (XANES), photoluminescence (including fluorescence decay curves) and X-ray excited luminescence (XEL) spectra. The plausible reason for the enhanced mechanism is also discussed via both the glass density and energy-dispersive spectroscopy (EDS) analysis.

2. Experimental

Borogermanate scintillating glasses with the nominal composition of 25B2O3-40GeO2-34Gd2O3-1CeO2-0.31Si3N4 are synthesized by a melt-quenching method at different temperature of 1350, 1375, 1400, 1425 and 1450 °C, respectively. The role of the additive Si3N4 is to effectively reduce Ce4+ to Ce3+ during glass synthesis in air atmosphere [8]. The raw materials derives from H3BO3 (99.9%, Shanghai Chemical Reagents Co. Ltd., Shanghai, China), GeO2 (99.999%, Nanjing Hope Tech. Development Inc. Nanjing, China), Gd2O3 (99.99%, Jiangxi Ketai Advanced Materials Co. Ltd., Nanchang, China), CeO2 (99.99%, Shanghai Chemical Reagents Co. Ltd., Shanghai, China) and Si3N4 (99.99%, Shanghai Jingchun Reagent Co. Ltd., Shanghai, China). Batches of about 20 g raw materials were mixed homogeneously in an agate mortar and melted in an alumina crucible for about 1 h. The homogeneous melts were quickly poured onto a preheated stainless steel mold. The quenched glasses were finally annealed at 600 °C for 4-8 h followed by cooling down naturally to room temperature.

Transmittance spectra were collected on a Perkin-Elmer Lambda 750S UV/VIS spectrometer in 200-800 nm region. X-ray absorption near edge structure (XANES) spectra at Ce LIII-edge were recorded with a Si (111) double-crystal monochromator at beam line 1W2B of Beijing Synchrotron Radiation Facility (BSRF). Linear combination fitting (LCF) method was used to estimate the content of Ce3+ and Ce4+ in our glasses by Athena software. Excitation and emission spectra were carried out on a Hitachi F-7000 fluorescence spectrophotometer equipped with a 150 W xenon lamp as the excitation source. Luminescence decay curves were recorded in an Edinburgh FLS980 spectrometer using TCSPC technique excited by the 375 nm EPLED light source featured with 75 ps pulse width and 2 MHz frequency, respectively. The XEL spectra were examined using an home-made X-ray excited spectrometer, where a JF-2 X-ray tube (Mo anticathode target, Liaodong Radioative Instrument Co. Ltd) was used as the X-ray source operating at 50 kV and 40 mA, and a SBP-300 spectrometer (Beijing Zonix Instrument Co. Ltd) was coupled to the injected surface of the samples at 90° to the X-ray direction. Field emission scanning electron microscopy (FESEM, NOVA NANOSEM 230) equipped with an energy-dispersive spectroscopy (EDS, AZTec X-Max 80) was operated at 30 kV of accelerating voltage and applied for the analysis of glass composition. All the measurements were carried out at room temperature.

3. Results and discussion

Ttransmittance spectra of Ce3+-activated borogermanate glasses are shown in Fig. 1(a).It is clear that the transmittance spectra with the similar intensity and profiles seem to be independent on the melting temperature, and the linear transmittance coefficient exceeds 82% in 400-800 nm region. The same cut-off edges approximately at 368 nm result from their same concentration of Ce3+ ions. The noticeable reducing effect of Si3N4 may be illustrated by the digital photographs of the transparent and colourless borogermanate scintillating glasses, as shown in the inset of Fig. 1(a).

 

Fig. 1 Transmittance spectra (a), Ce LIII-edge XANES spectra of Ce3+-activated borogermanate scintillating glasses (b) and XANES spectra of Ce4+ and Ce3+ reference samples (c). Inset shows the digital photographs.

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Figure 1(c) displays the Ce LIII-edge XANES spectra of CeF3 and CeO2 measured as reference samples of trivalent and tetravalent Ce compounds, respectively. According to many-body calculations with Anderson impurity model [13, 14], the double peaks (peak A and B) arising from final-state configuration is associated with the 2p4f15d1 and 2p4f05d1 of Ce4+, respectively. While peak C at about 5723 eV is assigned to Ce3+ peak, it is associated with the 2p4f15d dipole allowed transition. To qualitatively determine the valence state of cerium in borogermanate glasses, the normalized Ce LIII-edge XANES spectra are compared in Fig. 1(b). It is surprising that the normalized Ce LIII-edge XANES spectra is highly similar. The absorption edges on the low energy side of all the XANES spectra match well with the features of Ce3+ ions (Peak C). However, the very weak signal of the featured Ce4+ ions (peaks B and A) coexists in all the Ce3+-activated borogermanate glasses. From the results of LFC method, the concentration of Ce3+ ions in borogermanate glasses is fitted to be about 81.4, 86.1, 88.1, 83.7 and 85.8% with an increase in melting temperature, respectively. In a word, the Ce3+ concentration in the investigated borogermanate glass is in the vicinity of 85%, which is in well line with the transmittance results.

Figures 2(a) and 2(b) show the excitation and emission spectra of Ce3+-activated borogermanate glasses, respectively. In the excitation spectrum, two groups of broad bands ranging 200-300 and 325-400 nm are ascribed to the 4f-5d3,4,5 and 4f-5d1,2 transition, respectively [8]. Under direct excitation at the 4f-5d1,2, a typical emission of Ce3+ ions assigned to 5d1-2F5/2,7/2 transition in 375-650 region is clearly observed. Both the excitation and emission intensity of Ce3+-activated borogermanate glasses increases remarkably with an increase in the melting temperature from 1350 to 1450 °C. To our interesting, a very limited blue-shift within 2-4 nm is noticed in both the excitation spectra and emission spectra, as clearly illustrated in the inset of emission spectra of Fig. 2(b). The very limited blue shift implies that weak modification of the glass mirostructure around Ce3+ ions. The crystal field strength (Dq) around the Ce3+ is estimated approximately by DqZ/R5 [15].Where Z is the charge on the anion and R represents the distance between the central ion and the surrounding ligands. If Z is fixed, the strength of the crystal field is inversely proportional to the fifth power of the bond length. Since the molar concentration of Ce3+ ions is fixed in borogermanate glasses, and the glass densities were measured to a decrease from 5.62 to 5.37 g/cm3 with an increase in melting temperature, the number of Ce3+ per unit volume gets lower. It suggests the longer distance between Ce3+ and its surrounding ligands, which results in the lower crystal field strength (Dq) around the Ce3+ ions and lead to the slight blue shift of Ce3+ ions in the excitation and emission bands, as shown in Figs. 2(a) and 2(b).

 

Fig. 2 Excitation (a), emission (b) spectra, luminescence decay curves (c) and XEL spectra (d). Inset shows the normalized emission spectra in 412.5-462.5 nm region.

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The luminescence decay curves (λex = 375 nm, λem = 433 nm) of Ce3+-activated borogermanate glasses are shown in Fig. 2(c). All the luminescence decay curves of Ce3+ ions significantly deviate from the single exponential rule, but they can be well fitted by two exponentials. Thus, the mean lifetimes of all the non-exponential curves are evaluated by a sum of two exponential functions [8]. The mean lifetimes of Ce3+-activated borogermanate glasses are evaluated to be about 32.73, 32.12, 32.83, 33.58 and 33.92 ns with an increase in melting temperature, respectively.

As a promising candidate to scintillating crystals to detect high-energy X-, alpha- and beta-rays, the XEL spectra of Ce3+-activated borogermanate glasses are displayed in Fig. 2(d). The XEL spectra is very similar to the emission spectra (see the Fig. 2(b)), and the XEL intensity of Ce3+-activated borogermanate glasses are also observed to be enhanced dramatically with an increase in the melting temperature. However, some detectable Eu3+ emission at about 625 and 654 nm also appear in the XEL spectra, which originates from the impurity of Gd2O3 raw materials because the impurity Eu3+ ions always exists in Gd2O3 raw material [8].

To find out the plausible reason for the enhanced Ce3+ emission induced by an increase in melting temperature, we have mentioned that the glass density decrease from 5.62 to 5.37 g/cm3 with an increase in melting temperature. This law may be related to the modification of not only the glass structure, but also the glass composition. The glass structure is hardly changed according to the unpolarized Raman scattering spectra (not shown here), because there is no new Raman shift detectable besides our previously assigned band centered at about 320, 580, 810, 940 and 1410 cm−1 [16, 17]. It is worthy to point out that all Ce3+-activated borogermanate glass with the same composition is synthesized in an Al2O3 crucible, the difference is only the melting temperature. Therefore, we speculate the dissolved Al3+ from crucible should not be neglected and be responsible for the enhanced emission intensity of Ce3+ ions, because the deeper corrosion trace of aluminum cubicle at higher temperature are observed. To further confirm this speculation, we have carried out and shown the EDS spectra of the T = 1350, 1400 and 1450 °C glasses in Fig. 3, respectively.The analysis results persuasively suggest that the concentration of Al3+ ions increase, from 5.27 (T = 1350 °C) to 7.09 (T = 1400 °C) and 8.21 at% (T = 1450 °C), with an increase in melting temperature. As a fact of matter, the optical properties of luminescent glasses induced by either the intended incorporation of Al3+ or the evitable dissolution of Al3+ from crucible has been received attentions in recent years [1820]. The role of Al3+ ions is well known to isolate the RE-O-RE bonds and form Al-O-RE bonds, such declustering effect, leading to larger RE separation, which results in the enhanced emission intensity [1820].

 

Fig. 3 EDS spectra of the T = 1350 (a), T = 1400 (b) and T = 1450 °C (c) glasses

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4. Conclusions

More than 80% Ce4+ is effectively reduced to Ce3+ ions in borogermanate glasses synthesized in air atmosphere at different melting temperature in the 1350-1450 °C region. The luminescence intensity of Ce3+ ions increases noticeably with an increasing melting temperature, which attributes to the declustering effect of the dissolved Al3+ from Al2O3 crucible. The developed Ce3+-activated borogermanate shows a broad emission centered at 430 nm and a decay time of about 33 ns, which will be promising in the scintillating fields of high energy physics engineering and medical imaging.

Acknowledgments

This work is supported by the Natural Science Fund of China (11165010, 51202098 and 11465010) and Jiangxi Province (20142BAB202006), the Training Program of Young Scientists (JingGang Star) in Jiangxi Province (20133BCB23023).

References and links

1. M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000). [CrossRef]  

2. G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014). [CrossRef]   [PubMed]  

3. G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994). [CrossRef]  

4. W. Zhou, S. W. Martin, D. Schwellenbach, and J. Hauptman, “New high-density fluroride glasses doped with CeF3,” J. Non-Cryst. Solids 184(1–2), 84–92 (1995). [CrossRef]  

5. S. F. Shaukat, K. J. McKinlay, P. S. Flower, P. R. Hobson, and J. M. Parker, “Optical and physical characteristics of HBLAN fluoride glasses containing cerium,” J. Non-Cryst. Solids 244(2–3), 197–204 (1999). [CrossRef]  

6. C. Jiang, P. Deng, J. Zhang, and F. Gan, “Radioluminescence of Ce3+-doped B2O3-SiO2-Gd2O3-BaO glass,” Phys. Lett. A 323(3–4), 323–328 (2004). [CrossRef]  

7. Q. Wang, B. Yang, Y. Zhang, H. Xia, T. Zhao, and H. Jiang, “High light yield Ce3+-doped dense scintillating glasses,” J. Alloys Compd. 581, 801–804 (2013). [CrossRef]  

8. X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014). [CrossRef]  

9. J. Fu, M. Kobayashi, S. Sugimoto, and J. M. Parker, “Scintillation form Eu2+ in nanocrystallized glass,” J. Am. Ceram. Soc. 92(9), 2119–2121 (2009). [CrossRef]  

10. G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007). [CrossRef]  

11. M. Peng, C. Zollfrank, and L. Wondraczek, “Origin of broad NIR photoluminescence in bismuthate glass and Bi-doped glasses at room temperature,” J. Phys. Condens. Matter 21(28), 285106 (2009). [CrossRef]   [PubMed]  

12. S. Khonthon, S. Morimoto, Y. Arai, and Y. Ohishi, “Redox equilibrium and NIR luminescence of Bi2O3-containing glasses,” Opt. Mater. 31(8), 1262–1268 (2009). [CrossRef]  

13. A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987). [CrossRef]   [PubMed]  

14. Y. Wu, J. Luo, M. Nikl, and G. Ren, “Origin of improved scintillation efficiency in (Lu,Gd)3(Ga,Al)5O12:Ce multimcomponentgarnets: An X-ray absorption near edge spectroscopy study,” APL Mater. 2(1), 012101 (2014). [CrossRef]  

15. H.-C. Lin, C.-Y. Yang, S. Das, and C.-H. Lu, “Photoluminescence properties of color-tunable Ca3La6(SiO4)6:Ce3+,Tb3+ phosphors,” J. Am. Ceram. Soc. 97(6), 1866–1872 (2014). [CrossRef]  

16. X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013). [CrossRef]  

17. X. Sun, X. Yu, W. Wang, Y. Li, Z. Zhang, and J. Zhao, “Luminescent properties of Tb3+-activated B2O3-GeO2-Gd2O3 scintillating glasses,” J. Non-Cryst. Solids 379, 127–130 (2013). [CrossRef]  

18. K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, “Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glasses,” J. Appl. Phys. 59(10), 3430–3436 (1986). [CrossRef]  

19. A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004). [CrossRef]  

20. K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013). [CrossRef]  

References

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  1. M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
    [Crossref]
  2. G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
    [Crossref] [PubMed]
  3. G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994).
    [Crossref]
  4. W. Zhou, S. W. Martin, D. Schwellenbach, and J. Hauptman, “New high-density fluroride glasses doped with CeF3,” J. Non-Cryst. Solids 184(1–2), 84–92 (1995).
    [Crossref]
  5. S. F. Shaukat, K. J. McKinlay, P. S. Flower, P. R. Hobson, and J. M. Parker, “Optical and physical characteristics of HBLAN fluoride glasses containing cerium,” J. Non-Cryst. Solids 244(2–3), 197–204 (1999).
    [Crossref]
  6. C. Jiang, P. Deng, J. Zhang, and F. Gan, “Radioluminescence of Ce3+-doped B2O3-SiO2-Gd2O3-BaO glass,” Phys. Lett. A 323(3–4), 323–328 (2004).
    [Crossref]
  7. Q. Wang, B. Yang, Y. Zhang, H. Xia, T. Zhao, and H. Jiang, “High light yield Ce3+-doped dense scintillating glasses,” J. Alloys Compd. 581, 801–804 (2013).
    [Crossref]
  8. X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014).
    [Crossref]
  9. J. Fu, M. Kobayashi, S. Sugimoto, and J. M. Parker, “Scintillation form Eu2+ in nanocrystallized glass,” J. Am. Ceram. Soc. 92(9), 2119–2121 (2009).
    [Crossref]
  10. G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007).
    [Crossref]
  11. M. Peng, C. Zollfrank, and L. Wondraczek, “Origin of broad NIR photoluminescence in bismuthate glass and Bi-doped glasses at room temperature,” J. Phys. Condens. Matter 21(28), 285106 (2009).
    [Crossref] [PubMed]
  12. S. Khonthon, S. Morimoto, Y. Arai, and Y. Ohishi, “Redox equilibrium and NIR luminescence of Bi2O3-containing glasses,” Opt. Mater. 31(8), 1262–1268 (2009).
    [Crossref]
  13. A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987).
    [Crossref] [PubMed]
  14. Y. Wu, J. Luo, M. Nikl, and G. Ren, “Origin of improved scintillation efficiency in (Lu,Gd)3(Ga,Al)5O12:Ce multimcomponentgarnets: An X-ray absorption near edge spectroscopy study,” APL Mater. 2(1), 012101 (2014).
    [Crossref]
  15. H.-C. Lin, C.-Y. Yang, S. Das, and C.-H. Lu, “Photoluminescence properties of color-tunable Ca3La6(SiO4)6:Ce3+,Tb3+ phosphors,” J. Am. Ceram. Soc. 97(6), 1866–1872 (2014).
    [Crossref]
  16. X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013).
    [Crossref]
  17. X. Sun, X. Yu, W. Wang, Y. Li, Z. Zhang, and J. Zhao, “Luminescent properties of Tb3+-activated B2O3-GeO2-Gd2O3 scintillating glasses,” J. Non-Cryst. Solids 379, 127–130 (2013).
    [Crossref]
  18. K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, “Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glasses,” J. Appl. Phys. 59(10), 3430–3436 (1986).
    [Crossref]
  19. A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
    [Crossref]
  20. K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013).
    [Crossref]

2014 (4)

X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014).
[Crossref]

H.-C. Lin, C.-Y. Yang, S. Das, and C.-H. Lu, “Photoluminescence properties of color-tunable Ca3La6(SiO4)6:Ce3+,Tb3+ phosphors,” J. Am. Ceram. Soc. 97(6), 1866–1872 (2014).
[Crossref]

G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
[Crossref] [PubMed]

Y. Wu, J. Luo, M. Nikl, and G. Ren, “Origin of improved scintillation efficiency in (Lu,Gd)3(Ga,Al)5O12:Ce multimcomponentgarnets: An X-ray absorption near edge spectroscopy study,” APL Mater. 2(1), 012101 (2014).
[Crossref]

2013 (4)

Q. Wang, B. Yang, Y. Zhang, H. Xia, T. Zhao, and H. Jiang, “High light yield Ce3+-doped dense scintillating glasses,” J. Alloys Compd. 581, 801–804 (2013).
[Crossref]

K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013).
[Crossref]

X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013).
[Crossref]

X. Sun, X. Yu, W. Wang, Y. Li, Z. Zhang, and J. Zhao, “Luminescent properties of Tb3+-activated B2O3-GeO2-Gd2O3 scintillating glasses,” J. Non-Cryst. Solids 379, 127–130 (2013).
[Crossref]

2009 (3)

J. Fu, M. Kobayashi, S. Sugimoto, and J. M. Parker, “Scintillation form Eu2+ in nanocrystallized glass,” J. Am. Ceram. Soc. 92(9), 2119–2121 (2009).
[Crossref]

S. Khonthon, S. Morimoto, Y. Arai, and Y. Ohishi, “Redox equilibrium and NIR luminescence of Bi2O3-containing glasses,” Opt. Mater. 31(8), 1262–1268 (2009).
[Crossref]

M. Peng, C. Zollfrank, and L. Wondraczek, “Origin of broad NIR photoluminescence in bismuthate glass and Bi-doped glasses at room temperature,” J. Phys. Condens. Matter 21(28), 285106 (2009).
[Crossref] [PubMed]

2007 (1)

G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007).
[Crossref]

2004 (2)

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

C. Jiang, P. Deng, J. Zhang, and F. Gan, “Radioluminescence of Ce3+-doped B2O3-SiO2-Gd2O3-BaO glass,” Phys. Lett. A 323(3–4), 323–328 (2004).
[Crossref]

2000 (1)

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

1999 (1)

S. F. Shaukat, K. J. McKinlay, P. S. Flower, P. R. Hobson, and J. M. Parker, “Optical and physical characteristics of HBLAN fluoride glasses containing cerium,” J. Non-Cryst. Solids 244(2–3), 197–204 (1999).
[Crossref]

1995 (1)

W. Zhou, S. W. Martin, D. Schwellenbach, and J. Hauptman, “New high-density fluroride glasses doped with CeF3,” J. Non-Cryst. Solids 184(1–2), 84–92 (1995).
[Crossref]

1994 (1)

G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994).
[Crossref]

1987 (1)

A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987).
[Crossref] [PubMed]

1986 (1)

K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, “Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glasses,” J. Appl. Phys. 59(10), 3430–3436 (1986).
[Crossref]

Alombert-Goget, G.

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

Arai, K.

K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, “Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glasses,” J. Appl. Phys. 59(10), 3430–3436 (1986).
[Crossref]

Arai, Y.

S. Khonthon, S. Morimoto, Y. Arai, and Y. Ohishi, “Redox equilibrium and NIR luminescence of Bi2O3-containing glasses,” Opt. Mater. 31(8), 1262–1268 (2009).
[Crossref]

Baccaro, S.

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

Bettinelli, M.

G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994).
[Crossref]

Bhargavi, K.

K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013).
[Crossref]

Bianconi, A.

A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987).
[Crossref] [PubMed]

Brik, M. G.

K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013).
[Crossref]

Chaussedent, S.

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

Chen, D.

G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007).
[Crossref]

Chen, G.

G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007).
[Crossref]

Chen, S.

X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013).
[Crossref]

Chiasera, A.

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

Dall’Igna, R.

G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994).
[Crossref]

Das, S.

H.-C. Lin, C.-Y. Yang, S. Das, and C.-H. Lu, “Photoluminescence properties of color-tunable Ca3La6(SiO4)6:Ce3+,Tb3+ phosphors,” J. Am. Ceram. Soc. 97(6), 1866–1872 (2014).
[Crossref]

Deng, P.

C. Jiang, P. Deng, J. Zhang, and F. Gan, “Radioluminescence of Ce3+-doped B2O3-SiO2-Gd2O3-BaO glass,” Phys. Lett. A 323(3–4), 323–328 (2004).
[Crossref]

Dexpert, H.

A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987).
[Crossref] [PubMed]

Fabeni, P.

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

Ferrari, M.

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

Flower, P. S.

S. F. Shaukat, K. J. McKinlay, P. S. Flower, P. R. Hobson, and J. M. Parker, “Optical and physical characteristics of HBLAN fluoride glasses containing cerium,” J. Non-Cryst. Solids 244(2–3), 197–204 (1999).
[Crossref]

Fu, J.

J. Fu, M. Kobayashi, S. Sugimoto, and J. M. Parker, “Scintillation form Eu2+ in nanocrystallized glass,” J. Am. Ceram. Soc. 92(9), 2119–2121 (2009).
[Crossref]

Gan, F.

C. Jiang, P. Deng, J. Zhang, and F. Gan, “Radioluminescence of Ce3+-doped B2O3-SiO2-Gd2O3-BaO glass,” Phys. Lett. A 323(3–4), 323–328 (2004).
[Crossref]

Gandhi, Y.

K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013).
[Crossref]

Gao, P.

X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014).
[Crossref]

Gaumer, N.

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

Gu, M.

X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013).
[Crossref]

Handa, T.

K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, “Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glasses,” J. Appl. Phys. 59(10), 3430–3436 (1986).
[Crossref]

Hauptman, J.

W. Zhou, S. W. Martin, D. Schwellenbach, and J. Hauptman, “New high-density fluroride glasses doped with CeF3,” J. Non-Cryst. Solids 184(1–2), 84–92 (1995).
[Crossref]

Hobson, P. R.

S. F. Shaukat, K. J. McKinlay, P. S. Flower, P. R. Hobson, and J. M. Parker, “Optical and physical characteristics of HBLAN fluoride glasses containing cerium,” J. Non-Cryst. Solids 244(2–3), 197–204 (1999).
[Crossref]

Honda, T.

K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, “Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glasses,” J. Appl. Phys. 59(10), 3430–3436 (1986).
[Crossref]

Huang, S.

X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013).
[Crossref]

Ishii, Y.

K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, “Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glasses,” J. Appl. Phys. 59(10), 3430–3436 (1986).
[Crossref]

Jacobs, B.

G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
[Crossref] [PubMed]

Jiang, C.

C. Jiang, P. Deng, J. Zhang, and F. Gan, “Radioluminescence of Ce3+-doped B2O3-SiO2-Gd2O3-BaO glass,” Phys. Lett. A 323(3–4), 323–328 (2004).
[Crossref]

Jiang, D.

X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013).
[Crossref]

Jiang, H.

Q. Wang, B. Yang, Y. Zhang, H. Xia, T. Zhao, and H. Jiang, “High light yield Ce3+-doped dense scintillating glasses,” J. Alloys Compd. 581, 801–804 (2013).
[Crossref]

Jo, T.

A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987).
[Crossref] [PubMed]

Kang, Z.

G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
[Crossref] [PubMed]

Karnatak, R.

A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987).
[Crossref] [PubMed]

Khonthon, S.

S. Khonthon, S. Morimoto, Y. Arai, and Y. Ohishi, “Redox equilibrium and NIR luminescence of Bi2O3-containing glasses,” Opt. Mater. 31(8), 1262–1268 (2009).
[Crossref]

Kobayashi, M.

J. Fu, M. Kobayashi, S. Sugimoto, and J. M. Parker, “Scintillation form Eu2+ in nanocrystallized glass,” J. Am. Ceram. Soc. 92(9), 2119–2121 (2009).
[Crossref]

Kotani, A.

A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987).
[Crossref] [PubMed]

Kumata, K.

K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, “Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glasses,” J. Appl. Phys. 59(10), 3430–3436 (1986).
[Crossref]

Lee, G.

G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
[Crossref] [PubMed]

Li, Y.

X. Sun, X. Yu, W. Wang, Y. Li, Z. Zhang, and J. Zhao, “Luminescent properties of Tb3+-activated B2O3-GeO2-Gd2O3 scintillating glasses,” J. Non-Cryst. Solids 379, 127–130 (2013).
[Crossref]

Lin, H.-C.

H.-C. Lin, C.-Y. Yang, S. Das, and C.-H. Lu, “Photoluminescence properties of color-tunable Ca3La6(SiO4)6:Ce3+,Tb3+ phosphors,” J. Am. Ceram. Soc. 97(6), 1866–1872 (2014).
[Crossref]

Locardi, B.

G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994).
[Crossref]

Lu, C.-H.

H.-C. Lin, C.-Y. Yang, S. Das, and C.-H. Lu, “Photoluminescence properties of color-tunable Ca3La6(SiO4)6:Ce3+,Tb3+ phosphors,” J. Am. Ceram. Soc. 97(6), 1866–1872 (2014).
[Crossref]

Luo, J.

Y. Wu, J. Luo, M. Nikl, and G. Ren, “Origin of improved scintillation efficiency in (Lu,Gd)3(Ga,Al)5O12:Ce multimcomponentgarnets: An X-ray absorption near edge spectroscopy study,” APL Mater. 2(1), 012101 (2014).
[Crossref]

Mao, R.

X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014).
[Crossref]

Marcelli, A.

A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987).
[Crossref] [PubMed]

Mares, J. A.

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

Marigo, A.

G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994).
[Crossref]

Martin, S. W.

W. Zhou, S. W. Martin, D. Schwellenbach, and J. Hauptman, “New high-density fluroride glasses doped with CeF3,” J. Non-Cryst. Solids 184(1–2), 84–92 (1995).
[Crossref]

McKinlay, K. J.

S. F. Shaukat, K. J. McKinlay, P. S. Flower, P. R. Hobson, and J. M. Parker, “Optical and physical characteristics of HBLAN fluoride glasses containing cerium,” J. Non-Cryst. Solids 244(2–3), 197–204 (1999).
[Crossref]

Menkara, H.

G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
[Crossref] [PubMed]

Messaddeq, Y.

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

Mihokova, E.

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

Monteil, A.

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

Morimoto, S.

S. Khonthon, S. Morimoto, Y. Arai, and Y. Ohishi, “Redox equilibrium and NIR luminescence of Bi2O3-containing glasses,” Opt. Mater. 31(8), 1262–1268 (2009).
[Crossref]

Nageswara Rao, P.

K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013).
[Crossref]

Namikawa, H.

K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, “Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glasses,” J. Appl. Phys. 59(10), 3430–3436 (1986).
[Crossref]

Nikl, M.

Y. Wu, J. Luo, M. Nikl, and G. Ren, “Origin of improved scintillation efficiency in (Lu,Gd)3(Ga,Al)5O12:Ce multimcomponentgarnets: An X-ray absorption near edge spectroscopy study,” APL Mater. 2(1), 012101 (2014).
[Crossref]

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

Nitsch, K.

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

Obriot, J.

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

Ohishi, Y.

S. Khonthon, S. Morimoto, Y. Arai, and Y. Ohishi, “Redox equilibrium and NIR luminescence of Bi2O3-containing glasses,” Opt. Mater. 31(8), 1262–1268 (2009).
[Crossref]

Parker, J. M.

J. Fu, M. Kobayashi, S. Sugimoto, and J. M. Parker, “Scintillation form Eu2+ in nanocrystallized glass,” J. Am. Ceram. Soc. 92(9), 2119–2121 (2009).
[Crossref]

S. F. Shaukat, K. J. McKinlay, P. S. Flower, P. R. Hobson, and J. M. Parker, “Optical and physical characteristics of HBLAN fluoride glasses containing cerium,” J. Non-Cryst. Solids 244(2–3), 197–204 (1999).
[Crossref]

Pazzi, G. P.

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

Peng, M.

M. Peng, C. Zollfrank, and L. Wondraczek, “Origin of broad NIR photoluminescence in bismuthate glass and Bi-doped glasses at room temperature,” J. Phys. Condens. Matter 21(28), 285106 (2009).
[Crossref] [PubMed]

Petiau, J.

A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987).
[Crossref] [PubMed]

Polato, P.

G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994).
[Crossref]

Ren, G.

Y. Wu, J. Luo, M. Nikl, and G. Ren, “Origin of improved scintillation efficiency in (Lu,Gd)3(Ga,Al)5O12:Ce multimcomponentgarnets: An X-ray absorption near edge spectroscopy study,” APL Mater. 2(1), 012101 (2014).
[Crossref]

Ren, J.

G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007).
[Crossref]

Ribeiro, S. J. L.

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

Savage, N.

G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
[Crossref] [PubMed]

Schwellenbach, D.

W. Zhou, S. W. Martin, D. Schwellenbach, and J. Hauptman, “New high-density fluroride glasses doped with CeF3,” J. Non-Cryst. Solids 184(1–2), 84–92 (1995).
[Crossref]

Shaukat, S. F.

S. F. Shaukat, K. J. McKinlay, P. S. Flower, P. R. Hobson, and J. M. Parker, “Optical and physical characteristics of HBLAN fluoride glasses containing cerium,” J. Non-Cryst. Solids 244(2–3), 197–204 (1999).
[Crossref]

Solovieva, N.

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

Sudarsan, V.

K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013).
[Crossref]

Sugimoto, S.

J. Fu, M. Kobayashi, S. Sugimoto, and J. M. Parker, “Scintillation form Eu2+ in nanocrystallized glass,” J. Am. Ceram. Soc. 92(9), 2119–2121 (2009).
[Crossref]

Summers, C.

G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
[Crossref] [PubMed]

Sun, X.

X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014).
[Crossref]

X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013).
[Crossref]

X. Sun, X. Yu, W. Wang, Y. Li, Z. Zhang, and J. Zhao, “Luminescent properties of Tb3+-activated B2O3-GeO2-Gd2O3 scintillating glasses,” J. Non-Cryst. Solids 379, 127–130 (2013).
[Crossref]

Sundara Rao, M.

K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013).
[Crossref]

Veeraiah, N.

K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013).
[Crossref]

Wagner, B.

G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
[Crossref] [PubMed]

Wang, Q.

Q. Wang, B. Yang, Y. Zhang, H. Xia, T. Zhao, and H. Jiang, “High light yield Ce3+-doped dense scintillating glasses,” J. Alloys Compd. 581, 801–804 (2013).
[Crossref]

Wang, W.

X. Sun, X. Yu, W. Wang, Y. Li, Z. Zhang, and J. Zhao, “Luminescent properties of Tb3+-activated B2O3-GeO2-Gd2O3 scintillating glasses,” J. Non-Cryst. Solids 379, 127–130 (2013).
[Crossref]

Wondraczek, L.

M. Peng, C. Zollfrank, and L. Wondraczek, “Origin of broad NIR photoluminescence in bismuthate glass and Bi-doped glasses at room temperature,” J. Phys. Condens. Matter 21(28), 285106 (2009).
[Crossref] [PubMed]

Wu, Y.

Y. Wu, J. Luo, M. Nikl, and G. Ren, “Origin of improved scintillation efficiency in (Lu,Gd)3(Ga,Al)5O12:Ce multimcomponentgarnets: An X-ray absorption near edge spectroscopy study,” APL Mater. 2(1), 012101 (2014).
[Crossref]

X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014).
[Crossref]

Xia, H.

Q. Wang, B. Yang, Y. Zhang, H. Xia, T. Zhao, and H. Jiang, “High light yield Ce3+-doped dense scintillating glasses,” J. Alloys Compd. 581, 801–804 (2013).
[Crossref]

Xu, Y.

G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007).
[Crossref]

Yang, B.

Q. Wang, B. Yang, Y. Zhang, H. Xia, T. Zhao, and H. Jiang, “High light yield Ce3+-doped dense scintillating glasses,” J. Alloys Compd. 581, 801–804 (2013).
[Crossref]

Yang, C.-Y.

H.-C. Lin, C.-Y. Yang, S. Das, and C.-H. Lu, “Photoluminescence properties of color-tunable Ca3La6(SiO4)6:Ce3+,Tb3+ phosphors,” J. Am. Ceram. Soc. 97(6), 1866–1872 (2014).
[Crossref]

Yang, G.

G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007).
[Crossref]

Yang, Y.

G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007).
[Crossref]

Ye, Z.

X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014).
[Crossref]

Yu, X.

X. Sun, X. Yu, W. Wang, Y. Li, Z. Zhang, and J. Zhao, “Luminescent properties of Tb3+-activated B2O3-GeO2-Gd2O3 scintillating glasses,” J. Non-Cryst. Solids 379, 127–130 (2013).
[Crossref]

Zanella, G.

G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994).
[Crossref]

Zannoni, R.

G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994).
[Crossref]

Zeng, H.

G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007).
[Crossref]

Zhang, J.

C. Jiang, P. Deng, J. Zhang, and F. Gan, “Radioluminescence of Ce3+-doped B2O3-SiO2-Gd2O3-BaO glass,” Phys. Lett. A 323(3–4), 323–328 (2004).
[Crossref]

Zhang, Y.

G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
[Crossref] [PubMed]

Q. Wang, B. Yang, Y. Zhang, H. Xia, T. Zhao, and H. Jiang, “High light yield Ce3+-doped dense scintillating glasses,” J. Alloys Compd. 581, 801–804 (2013).
[Crossref]

Zhang, Z.

X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014).
[Crossref]

X. Sun, X. Yu, W. Wang, Y. Li, Z. Zhang, and J. Zhao, “Luminescent properties of Tb3+-activated B2O3-GeO2-Gd2O3 scintillating glasses,” J. Non-Cryst. Solids 379, 127–130 (2013).
[Crossref]

X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013).
[Crossref]

Zhao, J.

X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014).
[Crossref]

X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013).
[Crossref]

X. Sun, X. Yu, W. Wang, Y. Li, Z. Zhang, and J. Zhao, “Luminescent properties of Tb3+-activated B2O3-GeO2-Gd2O3 scintillating glasses,” J. Non-Cryst. Solids 379, 127–130 (2013).
[Crossref]

Zhao, T.

Q. Wang, B. Yang, Y. Zhang, H. Xia, T. Zhao, and H. Jiang, “High light yield Ce3+-doped dense scintillating glasses,” J. Alloys Compd. 581, 801–804 (2013).
[Crossref]

Zhou, W.

W. Zhou, S. W. Martin, D. Schwellenbach, and J. Hauptman, “New high-density fluroride glasses doped with CeF3,” J. Non-Cryst. Solids 184(1–2), 84–92 (1995).
[Crossref]

Zollfrank, C.

M. Peng, C. Zollfrank, and L. Wondraczek, “Origin of broad NIR photoluminescence in bismuthate glass and Bi-doped glasses at room temperature,” J. Phys. Condens. Matter 21(28), 285106 (2009).
[Crossref] [PubMed]

APL Mater. (1)

Y. Wu, J. Luo, M. Nikl, and G. Ren, “Origin of improved scintillation efficiency in (Lu,Gd)3(Ga,Al)5O12:Ce multimcomponentgarnets: An X-ray absorption near edge spectroscopy study,” APL Mater. 2(1), 012101 (2014).
[Crossref]

Appl. Phys. Lett. (1)

M. Nikl, K. Nitsch, E. Mihokova, N. Solovieva, J. A. Mares, G. P. Pazzi, P. Fabeni, G. P. Pazzi, and S. Baccaro, “Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses,” Appl. Phys. Lett. 77(14), 2159–2161 (2000).
[Crossref]

J. Alloys Compd. (1)

Q. Wang, B. Yang, Y. Zhang, H. Xia, T. Zhao, and H. Jiang, “High light yield Ce3+-doped dense scintillating glasses,” J. Alloys Compd. 581, 801–804 (2013).
[Crossref]

J. Am. Ceram. Soc. (5)

X. Sun, Z. Ye, Y. Wu, P. Gao, R. Mao, Z. Zhang, and J. Zhao, “A simple and highly efficient method for synthesis of Ce3+-activated borogermante scintillating glasses in air,” J. Am. Ceram. Soc. 97(11), 3388–3391 (2014).
[Crossref]

J. Fu, M. Kobayashi, S. Sugimoto, and J. M. Parker, “Scintillation form Eu2+ in nanocrystallized glass,” J. Am. Ceram. Soc. 92(9), 2119–2121 (2009).
[Crossref]

G. Yang, D. Chen, J. Ren, Y. Xu, H. Zeng, Y. Yang, and G. Chen, “Effects of melting temperature on the broadband infrared luminescence of Bi-Doped and Bi/Dy co-doped chalcohalide glasses,” J. Am. Ceram. Soc. 90(11), 3670–3672 (2007).
[Crossref]

H.-C. Lin, C.-Y. Yang, S. Das, and C.-H. Lu, “Photoluminescence properties of color-tunable Ca3La6(SiO4)6:Ce3+,Tb3+ phosphors,” J. Am. Ceram. Soc. 97(6), 1866–1872 (2014).
[Crossref]

X. Sun, D. Jiang, S. Chen, S. Huang, M. Gu, Z. Zhang, and J. Zhao, “Eu3+-activated borogermanate scintillating glass with a high Gd2O3 content,” J. Am. Ceram. Soc. 96(5), 1483–1489 (2013).
[Crossref]

J. Appl. Phys. (1)

K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, “Aluminum or phosphorus co-doping effects on the fluorescence and structural properties of neodymium-doped silica glasses,” J. Appl. Phys. 59(10), 3430–3436 (1986).
[Crossref]

J. Lumin. (1)

G. Lee, N. Savage, B. Wagner, Y. Zhang, B. Jacobs, H. Menkara, C. Summers, and Z. Kang, “Synthesis and luminescence properties of transparent nanocrystalline GdF3:Tb glass-ceramic scintillator,” J. Lumin. 147(3), 363–366 (2014).
[Crossref] [PubMed]

J. Non-Cryst. Solids (5)

W. Zhou, S. W. Martin, D. Schwellenbach, and J. Hauptman, “New high-density fluroride glasses doped with CeF3,” J. Non-Cryst. Solids 184(1–2), 84–92 (1995).
[Crossref]

S. F. Shaukat, K. J. McKinlay, P. S. Flower, P. R. Hobson, and J. M. Parker, “Optical and physical characteristics of HBLAN fluoride glasses containing cerium,” J. Non-Cryst. Solids 244(2–3), 197–204 (1999).
[Crossref]

A. Monteil, S. Chaussedent, G. Alombert-Goget, N. Gaumer, J. Obriot, S. J. L. Ribeiro, Y. Messaddeq, A. Chiasera, and M. Ferrari, “Clustering of rare earth in glasses, aluminum effect: experiments and modeling,” J. Non-Cryst. Solids 348, 44–50 (2004).
[Crossref]

K. Bhargavi, V. Sudarsan, M. G. Brik, M. Sundara Rao, Y. Gandhi, P. Nageswara Rao, and N. Veeraiah, “Influence of Al declustering on the photoluminescent properties of Pr3+ ions in PbO–SiO2 glasses,” J. Non-Cryst. Solids 362, 201–206 (2013).
[Crossref]

X. Sun, X. Yu, W. Wang, Y. Li, Z. Zhang, and J. Zhao, “Luminescent properties of Tb3+-activated B2O3-GeO2-Gd2O3 scintillating glasses,” J. Non-Cryst. Solids 379, 127–130 (2013).
[Crossref]

J. Phys. Condens. Matter (1)

M. Peng, C. Zollfrank, and L. Wondraczek, “Origin of broad NIR photoluminescence in bismuthate glass and Bi-doped glasses at room temperature,” J. Phys. Condens. Matter 21(28), 285106 (2009).
[Crossref] [PubMed]

Nucl. Instru. Meth. A (1)

G. Zanella, R. Zannoni, R. Dall’Igna, B. Locardi, P. Polato, M. Bettinelli, and A. Marigo, “A new cerium scintillating glass for X-ray detection,” Nucl. Instru. Meth. A 345(1), 198–201 (1994).
[Crossref]

Opt. Mater. (1)

S. Khonthon, S. Morimoto, Y. Arai, and Y. Ohishi, “Redox equilibrium and NIR luminescence of Bi2O3-containing glasses,” Opt. Mater. 31(8), 1262–1268 (2009).
[Crossref]

Phys. Lett. A (1)

C. Jiang, P. Deng, J. Zhang, and F. Gan, “Radioluminescence of Ce3+-doped B2O3-SiO2-Gd2O3-BaO glass,” Phys. Lett. A 323(3–4), 323–328 (2004).
[Crossref]

Phys. Rev. B Condens. Matter (1)

A. Bianconi, A. Marcelli, H. Dexpert, R. Karnatak, A. Kotani, T. Jo, and J. Petiau, “Specific intermediate-valence state of insulating 4f compounds detected by L3 x-ray absorption,” Phys. Rev. B Condens. Matter 35(2), 806–812 (1987).
[Crossref] [PubMed]

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Figures (3)

Fig. 1
Fig. 1 Transmittance spectra (a), Ce LIII-edge XANES spectra of Ce3+-activated borogermanate scintillating glasses (b) and XANES spectra of Ce4+ and Ce3+ reference samples (c). Inset shows the digital photographs.
Fig. 2
Fig. 2 Excitation (a), emission (b) spectra, luminescence decay curves (c) and XEL spectra (d). Inset shows the normalized emission spectra in 412.5-462.5 nm region.
Fig. 3
Fig. 3 EDS spectra of the T = 1350 (a), T = 1400 (b) and T = 1450 °C (c) glasses

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