Abstract

A novel Ce3+:YAG doped sodium glass (CeYDG) with low-melting temperature of 693°C and high internal quantum yield of 68% for white-light-emitting diodes (WLEDs) is demonstrated. The glass phosphor possesses glass transition temperatures of 578°C which exhibits a better thermal stability to overcome the thermal limitation of conventional Ce3+:YAG doped silicone due to low thermal stability of around 150°C. To the best of authors’ knowledge, this is the highest quantum yield yet reported for thermally stable glass phosphors. The high quantum yield is achieved by lowering the sintering temperature of 700°C for glass phosphor, which substantially reduces Si-Ce3+:YAG inter-diffusion, evidenced by high-resolution transmission electron microscopy (HRTEM). This new CeYDG with high-quantum yield is essentially beneficial to the applications for next-generation solid-state lighting in the area where high power and absolute reliability are required and where silicone simply could not stand the heat or other deteriorating factors due to its low thermal stability.

© 2013 Optical Society of America

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  1. G. Mavrov, “Aging of silicone resins,” Studies in Conservation 28(4), 171–178 (1983).
    [Crossref]
  2. Y. H. Lin, J. P. You, Y. C. Lin, N. T. Tran, and F. G. Shi, “Development of high-performance optical silicone for the packaging of high-power LEDs,” IEEE Trans. Compon. Packag. Tech. 33(4), 761–766 (2010).
    [Crossref]
  3. C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).
  4. J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quant. 17(3), 741–746 (2011).
    [Crossref]
  5. C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” J. Disp. Technol. 9(6), 427–432 (2013).
    [Crossref]
  6. W. H. Cheng, C. C. Tsai, and J. Wang, “Lumen degradation and chromaticity shift in glass and silicone based high-power phosphor converted white-light-emitting diodes under thermal tests,” Proc. SPIE 8123, 81230F (2011).
    [Crossref]
  7. S. Fujita, S. Yoshihara, A. Sakamoto, S. Yamamoto, and S. Tanabe, “YAG glass-ceramic phosphor for white LED (I) background and development,” Proc. SPIE 5941, 594111 (2005).
    [Crossref]
  8. S. Tanabe, S. Fujita, S. Yoshihara, A. Sakamoto, and S. Yamamoto, “YAG glass-ceramic phosphor for white LED (II) Luminescence characteristics,” Proc. SPIE 5941, 594112 (2005).
    [Crossref]
  9. S. Fujita, A. Sakamoto, and S. Tanabe, “Luminescence characteristics of YAG glass-ceramic phosphor for white LED,” IEEE J. Sel. Top. Quant. 14(5), 1387–1391 (2008).
    [Crossref]
  10. S. Fujita and S. Tanabe, “Thermal quenching of Ce3+:Y3Al5O12 glass-ceramic phosphor,” Jpn. J. Appl. Phys. 48(120210), 1–3 (2009).
  11. H. Segawa, S. Ogata, N. Hirosak, S. Inoue, T. Shimizu, M. Tansho, S. Ohki, and K. Deguchi, “Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes,” Opt. Mater. 33(2), 170–175 (2010).
    [Crossref]
  12. Y. K. Lee, J. S. Lee, J. Heo, W. B. Im, and W. J. Chung, “Phosphor in glasses with Pb-free silicate glass powders as robust color-converting materials for white LED applications,” Opt. Lett. 37(15), 3276–3278 (2012).
    [Crossref] [PubMed]
  13. M. L. Öveçoğlu, G. Ozen, and S. Cenk, “Micro-structural characterization and crystallization behavior of (1−x)TeO2–XWO3 (x = 0.15, 0.25, 0.3 mol) glasses,” J. Eur. Ceram. Soc. 26(7), 1149–1158 (2006).
    [Crossref]
  14. B. Öz, I. Kabalcı, M. L. Öveçoğlu, and G. Ozen, “Thermal properties and crystallization behavior of some TeO2-K2O glasses,” J. Eur. Ceram. Soc. 27(2-3), 1823–1827 (2007).
    [Crossref]

2013 (1)

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

2012 (1)

2011 (2)

W. H. Cheng, C. C. Tsai, and J. Wang, “Lumen degradation and chromaticity shift in glass and silicone based high-power phosphor converted white-light-emitting diodes under thermal tests,” Proc. SPIE 8123, 81230F (2011).
[Crossref]

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quant. 17(3), 741–746 (2011).
[Crossref]

2010 (2)

Y. H. Lin, J. P. You, Y. C. Lin, N. T. Tran, and F. G. Shi, “Development of high-performance optical silicone for the packaging of high-power LEDs,” IEEE Trans. Compon. Packag. Tech. 33(4), 761–766 (2010).
[Crossref]

H. Segawa, S. Ogata, N. Hirosak, S. Inoue, T. Shimizu, M. Tansho, S. Ohki, and K. Deguchi, “Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes,” Opt. Mater. 33(2), 170–175 (2010).
[Crossref]

2009 (2)

S. Fujita and S. Tanabe, “Thermal quenching of Ce3+:Y3Al5O12 glass-ceramic phosphor,” Jpn. J. Appl. Phys. 48(120210), 1–3 (2009).

C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).

2008 (1)

S. Fujita, A. Sakamoto, and S. Tanabe, “Luminescence characteristics of YAG glass-ceramic phosphor for white LED,” IEEE J. Sel. Top. Quant. 14(5), 1387–1391 (2008).
[Crossref]

2007 (1)

B. Öz, I. Kabalcı, M. L. Öveçoğlu, and G. Ozen, “Thermal properties and crystallization behavior of some TeO2-K2O glasses,” J. Eur. Ceram. Soc. 27(2-3), 1823–1827 (2007).
[Crossref]

2006 (1)

M. L. Öveçoğlu, G. Ozen, and S. Cenk, “Micro-structural characterization and crystallization behavior of (1−x)TeO2–XWO3 (x = 0.15, 0.25, 0.3 mol) glasses,” J. Eur. Ceram. Soc. 26(7), 1149–1158 (2006).
[Crossref]

2005 (2)

S. Fujita, S. Yoshihara, A. Sakamoto, S. Yamamoto, and S. Tanabe, “YAG glass-ceramic phosphor for white LED (I) background and development,” Proc. SPIE 5941, 594111 (2005).
[Crossref]

S. Tanabe, S. Fujita, S. Yoshihara, A. Sakamoto, and S. Yamamoto, “YAG glass-ceramic phosphor for white LED (II) Luminescence characteristics,” Proc. SPIE 5941, 594112 (2005).
[Crossref]

1983 (1)

G. Mavrov, “Aging of silicone resins,” Studies in Conservation 28(4), 171–178 (1983).
[Crossref]

Cenk, S.

M. L. Öveçoğlu, G. Ozen, and S. Cenk, “Micro-structural characterization and crystallization behavior of (1−x)TeO2–XWO3 (x = 0.15, 0.25, 0.3 mol) glasses,” J. Eur. Ceram. Soc. 26(7), 1149–1158 (2006).
[Crossref]

Chang, J. K.

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

Chen, J. H.

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

Chen, L. Y.

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

Chen, M. H.

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quant. 17(3), 741–746 (2011).
[Crossref]

C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).

Cheng, W. C.

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quant. 17(3), 741–746 (2011).
[Crossref]

Cheng, W. H.

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

W. H. Cheng, C. C. Tsai, and J. Wang, “Lumen degradation and chromaticity shift in glass and silicone based high-power phosphor converted white-light-emitting diodes under thermal tests,” Proc. SPIE 8123, 81230F (2011).
[Crossref]

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quant. 17(3), 741–746 (2011).
[Crossref]

C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).

Chung, C. H.

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quant. 17(3), 741–746 (2011).
[Crossref]

Chung, W. J.

Deguchi, K.

H. Segawa, S. Ogata, N. Hirosak, S. Inoue, T. Shimizu, M. Tansho, S. Ohki, and K. Deguchi, “Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes,” Opt. Mater. 33(2), 170–175 (2010).
[Crossref]

Fujita, S.

S. Fujita and S. Tanabe, “Thermal quenching of Ce3+:Y3Al5O12 glass-ceramic phosphor,” Jpn. J. Appl. Phys. 48(120210), 1–3 (2009).

S. Fujita, A. Sakamoto, and S. Tanabe, “Luminescence characteristics of YAG glass-ceramic phosphor for white LED,” IEEE J. Sel. Top. Quant. 14(5), 1387–1391 (2008).
[Crossref]

S. Fujita, S. Yoshihara, A. Sakamoto, S. Yamamoto, and S. Tanabe, “YAG glass-ceramic phosphor for white LED (I) background and development,” Proc. SPIE 5941, 594111 (2005).
[Crossref]

S. Tanabe, S. Fujita, S. Yoshihara, A. Sakamoto, and S. Yamamoto, “YAG glass-ceramic phosphor for white LED (II) Luminescence characteristics,” Proc. SPIE 5941, 594112 (2005).
[Crossref]

Heo, J.

Hirosak, N.

H. Segawa, S. Ogata, N. Hirosak, S. Inoue, T. Shimizu, M. Tansho, S. Ohki, and K. Deguchi, “Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes,” Opt. Mater. 33(2), 170–175 (2010).
[Crossref]

Hsu, Y. C.

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).

Hu, H. L.

C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).

Huang, S. B.

C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).

Im, W. B.

Inoue, S.

H. Segawa, S. Ogata, N. Hirosak, S. Inoue, T. Shimizu, M. Tansho, S. Ohki, and K. Deguchi, “Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes,” Opt. Mater. 33(2), 170–175 (2010).
[Crossref]

Kabalci, I.

B. Öz, I. Kabalcı, M. L. Öveçoğlu, and G. Ozen, “Thermal properties and crystallization behavior of some TeO2-K2O glasses,” J. Eur. Ceram. Soc. 27(2-3), 1823–1827 (2007).
[Crossref]

Lee, C. W.

C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).

Lee, J. S.

Lee, Y. K.

Lin, Y. C.

Y. H. Lin, J. P. You, Y. C. Lin, N. T. Tran, and F. G. Shi, “Development of high-performance optical silicone for the packaging of high-power LEDs,” IEEE Trans. Compon. Packag. Tech. 33(4), 761–766 (2010).
[Crossref]

Lin, Y. H.

Y. H. Lin, J. P. You, Y. C. Lin, N. T. Tran, and F. G. Shi, “Development of high-performance optical silicone for the packaging of high-power LEDs,” IEEE Trans. Compon. Packag. Tech. 33(4), 761–766 (2010).
[Crossref]

Lin, Y. J.

C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).

Mavrov, G.

G. Mavrov, “Aging of silicone resins,” Studies in Conservation 28(4), 171–178 (1983).
[Crossref]

Ogata, S.

H. Segawa, S. Ogata, N. Hirosak, S. Inoue, T. Shimizu, M. Tansho, S. Ohki, and K. Deguchi, “Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes,” Opt. Mater. 33(2), 170–175 (2010).
[Crossref]

Ohki, S.

H. Segawa, S. Ogata, N. Hirosak, S. Inoue, T. Shimizu, M. Tansho, S. Ohki, and K. Deguchi, “Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes,” Opt. Mater. 33(2), 170–175 (2010).
[Crossref]

Öveçoglu, M. L.

B. Öz, I. Kabalcı, M. L. Öveçoğlu, and G. Ozen, “Thermal properties and crystallization behavior of some TeO2-K2O glasses,” J. Eur. Ceram. Soc. 27(2-3), 1823–1827 (2007).
[Crossref]

M. L. Öveçoğlu, G. Ozen, and S. Cenk, “Micro-structural characterization and crystallization behavior of (1−x)TeO2–XWO3 (x = 0.15, 0.25, 0.3 mol) glasses,” J. Eur. Ceram. Soc. 26(7), 1149–1158 (2006).
[Crossref]

Öz, B.

B. Öz, I. Kabalcı, M. L. Öveçoğlu, and G. Ozen, “Thermal properties and crystallization behavior of some TeO2-K2O glasses,” J. Eur. Ceram. Soc. 27(2-3), 1823–1827 (2007).
[Crossref]

Ozen, G.

B. Öz, I. Kabalcı, M. L. Öveçoğlu, and G. Ozen, “Thermal properties and crystallization behavior of some TeO2-K2O glasses,” J. Eur. Ceram. Soc. 27(2-3), 1823–1827 (2007).
[Crossref]

M. L. Öveçoğlu, G. Ozen, and S. Cenk, “Micro-structural characterization and crystallization behavior of (1−x)TeO2–XWO3 (x = 0.15, 0.25, 0.3 mol) glasses,” J. Eur. Ceram. Soc. 26(7), 1149–1158 (2006).
[Crossref]

Sakamoto, A.

S. Fujita, A. Sakamoto, and S. Tanabe, “Luminescence characteristics of YAG glass-ceramic phosphor for white LED,” IEEE J. Sel. Top. Quant. 14(5), 1387–1391 (2008).
[Crossref]

S. Fujita, S. Yoshihara, A. Sakamoto, S. Yamamoto, and S. Tanabe, “YAG glass-ceramic phosphor for white LED (I) background and development,” Proc. SPIE 5941, 594111 (2005).
[Crossref]

S. Tanabe, S. Fujita, S. Yoshihara, A. Sakamoto, and S. Yamamoto, “YAG glass-ceramic phosphor for white LED (II) Luminescence characteristics,” Proc. SPIE 5941, 594112 (2005).
[Crossref]

Segawa, H.

H. Segawa, S. Ogata, N. Hirosak, S. Inoue, T. Shimizu, M. Tansho, S. Ohki, and K. Deguchi, “Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes,” Opt. Mater. 33(2), 170–175 (2010).
[Crossref]

Shi, F. G.

Y. H. Lin, J. P. You, Y. C. Lin, N. T. Tran, and F. G. Shi, “Development of high-performance optical silicone for the packaging of high-power LEDs,” IEEE Trans. Compon. Packag. Tech. 33(4), 761–766 (2010).
[Crossref]

Shimizu, T.

H. Segawa, S. Ogata, N. Hirosak, S. Inoue, T. Shimizu, M. Tansho, S. Ohki, and K. Deguchi, “Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes,” Opt. Mater. 33(2), 170–175 (2010).
[Crossref]

Tanabe, S.

S. Fujita and S. Tanabe, “Thermal quenching of Ce3+:Y3Al5O12 glass-ceramic phosphor,” Jpn. J. Appl. Phys. 48(120210), 1–3 (2009).

S. Fujita, A. Sakamoto, and S. Tanabe, “Luminescence characteristics of YAG glass-ceramic phosphor for white LED,” IEEE J. Sel. Top. Quant. 14(5), 1387–1391 (2008).
[Crossref]

S. Fujita, S. Yoshihara, A. Sakamoto, S. Yamamoto, and S. Tanabe, “YAG glass-ceramic phosphor for white LED (I) background and development,” Proc. SPIE 5941, 594111 (2005).
[Crossref]

S. Tanabe, S. Fujita, S. Yoshihara, A. Sakamoto, and S. Yamamoto, “YAG glass-ceramic phosphor for white LED (II) Luminescence characteristics,” Proc. SPIE 5941, 594112 (2005).
[Crossref]

Tansho, M.

H. Segawa, S. Ogata, N. Hirosak, S. Inoue, T. Shimizu, M. Tansho, S. Ohki, and K. Deguchi, “Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes,” Opt. Mater. 33(2), 170–175 (2010).
[Crossref]

Tran, N. T.

Y. H. Lin, J. P. You, Y. C. Lin, N. T. Tran, and F. G. Shi, “Development of high-performance optical silicone for the packaging of high-power LEDs,” IEEE Trans. Compon. Packag. Tech. 33(4), 761–766 (2010).
[Crossref]

Tsai, C. C.

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

W. H. Cheng, C. C. Tsai, and J. Wang, “Lumen degradation and chromaticity shift in glass and silicone based high-power phosphor converted white-light-emitting diodes under thermal tests,” Proc. SPIE 8123, 81230F (2011).
[Crossref]

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quant. 17(3), 741–746 (2011).
[Crossref]

C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).

Wang, J.

W. H. Cheng, C. C. Tsai, and J. Wang, “Lumen degradation and chromaticity shift in glass and silicone based high-power phosphor converted white-light-emitting diodes under thermal tests,” Proc. SPIE 8123, 81230F (2011).
[Crossref]

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quant. 17(3), 741–746 (2011).
[Crossref]

C. C. Tsai, J. Wang, M. H. Chen, Y. C. Hsu, Y. J. Lin, C. W. Lee, S. B. Huang, H. L. Hu, and W. H. Cheng, “Investigation of Ce:YAG doping effect on thermal aging for high-power phosphor-converted white-light-emitting diode,” Trans. Device. Mater. Res. 9(3), 367–371 (2009).

Yamamoto, S.

S. Fujita, S. Yoshihara, A. Sakamoto, S. Yamamoto, and S. Tanabe, “YAG glass-ceramic phosphor for white LED (I) background and development,” Proc. SPIE 5941, 594111 (2005).
[Crossref]

S. Tanabe, S. Fujita, S. Yoshihara, A. Sakamoto, and S. Yamamoto, “YAG glass-ceramic phosphor for white LED (II) Luminescence characteristics,” Proc. SPIE 5941, 594112 (2005).
[Crossref]

Yoshihara, S.

S. Tanabe, S. Fujita, S. Yoshihara, A. Sakamoto, and S. Yamamoto, “YAG glass-ceramic phosphor for white LED (II) Luminescence characteristics,” Proc. SPIE 5941, 594112 (2005).
[Crossref]

S. Fujita, S. Yoshihara, A. Sakamoto, S. Yamamoto, and S. Tanabe, “YAG glass-ceramic phosphor for white LED (I) background and development,” Proc. SPIE 5941, 594111 (2005).
[Crossref]

You, J. P.

Y. H. Lin, J. P. You, Y. C. Lin, N. T. Tran, and F. G. Shi, “Development of high-performance optical silicone for the packaging of high-power LEDs,” IEEE Trans. Compon. Packag. Tech. 33(4), 761–766 (2010).
[Crossref]

IEEE J. Sel. Top. Quant. (2)

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Figures (7)

Fig. 1
Fig. 1 Outline of the fabrication scheme of glass phosphors: CeYDG-700, CeYDG-750, CeYDG-800, CeYDG-850, and CeYDG-900.

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Fig. 2
Fig. 2 Excitation (left) and Emission (right) spectra of CeYDG-700, CeYDG-750, CeYDG-800, CeYDG-850, and CeYDG-900.

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Fig. 3
Fig. 3 XRD patterns of CeYDG-700, CeYDG-800 and CeYDG-900.

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Fig. 4
Fig. 4 HRTEM images of a) CeYDG-700, b) CeYDG-800, and c) CeYDG-900. Insets: the selected area electron diffraction pattern from the white square.

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Fig. 5
Fig. 5 Top view images of CeYDG-700 with a) 0 wt%, b) 1 wt%, c) 2 wt%, d) 3 wt%, e) 4 wt%, and f) 5wt% Ce3+:YAG concentration.

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Fig. 6
Fig. 6 Emission spectra of WLEDs utilizing CeYDG-700.

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Fig. 7
Fig. 7 CIE-1931 chromaticity coordinates of the WLEDs utilizing CeYDG-700.

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Tables (2)

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Table 1 Physical data for CeYDG-700, CeYDG-750, CeYDG-800, CeYDG-850, and CeYDG-900.

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Table 2 Atomic percent of Y, Al, and Si in a Ce3+:YAG crystal at a distance of 100nm from the interface between the Ce3+:YAG crystal and amorphous SiO2 for CeYDG-700, CeYDG-800, and CeYDG-900.

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