Abstract

We report novel white light-emitting diode (WLED) devices that improve emission color uniformity. The WLEDs consist of a violet chip and a mixed-phosphor layer of three phosphors previously developed by us. It is found that each phosphor does not reabsorb the luminescence from the other phosphors; consequently, the emission color of the WLEDs does not get affected by the mounted quantity of phosphors and/or the variation in chip emission wavelength. Furthermore, an encapsulated WLED with a hemispherical dome-shaped mixed-phosphor layer enables an area to be irradiated with uniform color, producing an excellent color rendering index and improved luminous flux because of the reduced inelastic scattering loss in the phosphor layer.

© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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    [Crossref] [PubMed]
  2. K. Bando, K. Sakano, Y. Noguchi, and Y. Shimizu, “Development of high-bright and pure-white LED lamps,” J. Light Visual Environ. 22(1), 2–5 (1998).
    [Crossref]
  3. H. S. Jang, W. B. Im, D. C. Lee, D. Y. Jeon, and S. S. Kim, “Enhancement of red spectral emission intensity of Y3Al5O12:Ce3+ phosphor via Pr co-doping and Tb substitution for the application to white LEDs,” J. Lumin. 126(2), 371–377 (2007).
    [Crossref]
  4. K. Uheda, N. Hirosaki, Y. Yamamoto, A. Naito, T. Nakajima, and H. Yamamoto, “Luminescence properties of a red phosphor, CaAlSiN3: Eu2+, for white light-emitting diodes,” Electrochem. Solid-State Lett. 9(4), H22–H25 (2006).
    [Crossref]
  5. R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Hoppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all‐nitride phosphor‐converted white light emitting diode,” Phys. Status Solidi., A Appl. Mater. Sci. 202(9), 1727–1732 (2005).
    [Crossref]
  6. N. Hirosaki, R. J. Xie, K. Kimoto, T. Sekiguchi, Y. Yamamoto, T. Suehiro, and M. Mitomo, “Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes,” Appl. Phys. Lett. 86(21), 211905 (2005).
    [Crossref]
  7. N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R. J. Xie, “Extrahigh 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).
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    [Crossref] [PubMed]
  11. Y. Shuai, Y. He, N. T. Tran, and F. G. Shi, “Angular CCT uniformity of phosphor converted white LEDs: effects of phosphor materials and packaging structures,” IEEE Photonics Technol. Lett. 23(3), 137–139 (2011).
    [Crossref]
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    [Crossref]
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    [Crossref]
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    [Crossref] [PubMed]
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    [Crossref]
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    [Crossref] [PubMed]
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    [Crossref]
  19. T. Fukui, K. Kamon, J. Takeshita, H. Hayashi, T. Miyachi, Y. Uchida, S. Kurai, and T. Taguchi, “Superior illuminant characteristics of color rendering and luminous efficacy in multilayered phosphor conversion white light sources by near-ultraviolet light-emitting diodes,” Jpn. J. Appl. Phys. 48(1111R), 112101 (2009).
    [Crossref]
  20. Y.-H. Won, H. S. Jang, K. W. Cho, Y. S. Song, D. Y. Jeon, and H. K. Kwon, “Effect of phosphor geometry on the luminous efficiency of high-power white light-emitting diodes with excellent color rendering property,” Opt. Lett. 34(1), 1–3 (2009).
    [Crossref] [PubMed]
  21. H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
    [Crossref] [PubMed]
  22. H. Daicho, Y. Shinomiya, K. Enomoto, A. Nakano, H. Sawa, S. Matsuishi, and H. Hosono, “A novel red-emitting K2Ca(PO4)F:Eu2+ phosphor with a large Stokes shift,” Chem. Commun. (Camb.) 54(8), 884–887 (2018).
    [Crossref] [PubMed]
  23. Y. Narukawa, I. Niki, K. Izuno, M. Yamada, Y. Murazki, and T. Mukai, “Phosphor-conversion white light-emitting diodes using InGaN near-ultraviolet chip,” Jpn. J. Appl. Phys. Lett. 41, 371–373 (2002).
    [Crossref]

2018 (1)

H. Daicho, Y. Shinomiya, K. Enomoto, A. Nakano, H. Sawa, S. Matsuishi, and H. Hosono, “A novel red-emitting K2Ca(PO4)F:Eu2+ phosphor with a large Stokes shift,” Chem. Commun. (Camb.) 54(8), 884–887 (2018).
[Crossref] [PubMed]

2017 (1)

H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
[Crossref] [PubMed]

2016 (1)

2013 (3)

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

H. Zheng, J. Ma, and X. Luo, “Conformal phosphor distribution for whitelighting emitting diode packaging by conventional dispensing coating method with structure control,” IEEE Photonics Technol. Lett. 3(3), 417–421 (2013).

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

2012 (4)

C.-C. Sun, C.-Y. Chen, C.-C. Chen, C.-Y. Chiu, Y.-N. Peng, Y.-H. Wang, T.-H. Yang, T.-Y. Chung, and C.-Y. Chung, “High uniformity in angular correlated-color-temperature distribution of white LEDs from 2800K to 6500K,” Opt. Express 20(6), 6622–6630 (2012).
[Crossref] [PubMed]

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]

N. Wei, T. Lu, F. Li, W. Zhang, B. Ma, Z. Lu, and J. Qi, “Transparent Ce:Y3Al5O12 ceramic phosphors for white light-emitting diodes,” Appl. Phys. Lett. 101(6), 061902 (2012).
[Crossref]

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

2011 (1)

Y. Shuai, Y. He, N. T. Tran, and F. G. Shi, “Angular CCT uniformity of phosphor converted white LEDs: effects of phosphor materials and packaging structures,” IEEE Photonics Technol. Lett. 23(3), 137–139 (2011).
[Crossref]

2010 (1)

2009 (2)

T. Fukui, K. Kamon, J. Takeshita, H. Hayashi, T. Miyachi, Y. Uchida, S. Kurai, and T. Taguchi, “Superior illuminant characteristics of color rendering and luminous efficacy in multilayered phosphor conversion white light sources by near-ultraviolet light-emitting diodes,” Jpn. J. Appl. Phys. 48(1111R), 112101 (2009).
[Crossref]

Y.-H. Won, H. S. Jang, K. W. Cho, Y. S. Song, D. Y. Jeon, and H. K. Kwon, “Effect of phosphor geometry on the luminous efficiency of high-power white light-emitting diodes with excellent color rendering property,” Opt. Lett. 34(1), 1–3 (2009).
[Crossref] [PubMed]

2008 (1)

Z. Liu, S. Liu, K. Wang, and X. Luo, “Optical analysis of color distribution in white LEDs with various packaging methods,” IEEE Photonics Technol. Lett. 20(24), 2027–2029 (2008).
[Crossref]

2007 (2)

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R. J. Xie, “Extrahigh 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]

H. S. Jang, W. B. Im, D. C. Lee, D. Y. Jeon, and S. S. Kim, “Enhancement of red spectral emission intensity of Y3Al5O12:Ce3+ phosphor via Pr co-doping and Tb substitution for the application to white LEDs,” J. Lumin. 126(2), 371–377 (2007).
[Crossref]

2006 (1)

K. Uheda, N. Hirosaki, Y. Yamamoto, A. Naito, T. Nakajima, and H. Yamamoto, “Luminescence properties of a red phosphor, CaAlSiN3: Eu2+, for white light-emitting diodes,” Electrochem. Solid-State Lett. 9(4), H22–H25 (2006).
[Crossref]

2005 (3)

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Hoppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all‐nitride phosphor‐converted white light emitting diode,” Phys. Status Solidi., A Appl. Mater. Sci. 202(9), 1727–1732 (2005).
[Crossref]

N. Hirosaki, R. J. Xie, K. Kimoto, T. Sekiguchi, Y. Yamamoto, T. Suehiro, and M. Mitomo, “Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes,” Appl. Phys. Lett. 86(21), 211905 (2005).
[Crossref]

E. F. Schubert and J. K. Kim, “Solid-state light sources getting smart,” Science 308(5726), 1274–1278 (2005).
[Crossref] [PubMed]

2002 (1)

Y. Narukawa, I. Niki, K. Izuno, M. Yamada, Y. Murazki, and T. Mukai, “Phosphor-conversion white light-emitting diodes using InGaN near-ultraviolet chip,” Jpn. J. Appl. Phys. Lett. 41, 371–373 (2002).
[Crossref]

1998 (1)

K. Bando, K. Sakano, Y. Noguchi, and Y. Shimizu, “Development of high-bright and pure-white LED lamps,” J. Light Visual Environ. 22(1), 2–5 (1998).
[Crossref]

Aoyagi, S.

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Asano, K.

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R. J. Xie, “Extrahigh 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]

Bando, K.

K. Bando, K. Sakano, Y. Noguchi, and Y. Shimizu, “Development of high-bright and pure-white LED lamps,” J. Light Visual Environ. 22(1), 2–5 (1998).
[Crossref]

Chen, C.-C.

Chen, C.-Y.

Chen, H.-C.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Chen, K.-J.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Chien, S.-H.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Chiu, C.-Y.

Cho, K. W.

Chung, C.-Y.

Chung, T.-Y.

Chung, W. J.

Daicho, H.

H. Daicho, Y. Shinomiya, K. Enomoto, A. Nakano, H. Sawa, S. Matsuishi, and H. Hosono, “A novel red-emitting K2Ca(PO4)F:Eu2+ phosphor with a large Stokes shift,” Chem. Commun. (Camb.) 54(8), 884–887 (2018).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Enomoto, K.

H. Daicho, Y. Shinomiya, K. Enomoto, A. Nakano, H. Sawa, S. Matsuishi, and H. Hosono, “A novel red-emitting K2Ca(PO4)F:Eu2+ phosphor with a large Stokes shift,” Chem. Commun. (Camb.) 54(8), 884–887 (2018).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Fukui, T.

T. Fukui, K. Kamon, J. Takeshita, H. Hayashi, T. Miyachi, Y. Uchida, S. Kurai, and T. Taguchi, “Superior illuminant characteristics of color rendering and luminous efficacy in multilayered phosphor conversion white light sources by near-ultraviolet light-emitting diodes,” Jpn. J. Appl. Phys. 48(1111R), 112101 (2009).
[Crossref]

Han, H.-V.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Hayashi, H.

T. Fukui, K. Kamon, J. Takeshita, H. Hayashi, T. Miyachi, Y. Uchida, S. Kurai, and T. Taguchi, “Superior illuminant characteristics of color rendering and luminous efficacy in multilayered phosphor conversion white light sources by near-ultraviolet light-emitting diodes,” Jpn. J. Appl. Phys. 48(1111R), 112101 (2009).
[Crossref]

He, Y.

Y. Shuai, Y. He, N. T. Tran, and F. G. Shi, “Angular CCT uniformity of phosphor converted white LEDs: effects of phosphor materials and packaging structures,” IEEE Photonics Technol. Lett. 23(3), 137–139 (2011).
[Crossref]

Heo, J.

Hirafune, S.

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R. J. Xie, “Extrahigh 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.

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R. J. Xie, “Extrahigh 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]

K. Uheda, N. Hirosaki, Y. Yamamoto, A. Naito, T. Nakajima, and H. Yamamoto, “Luminescence properties of a red phosphor, CaAlSiN3: Eu2+, for white light-emitting diodes,” Electrochem. Solid-State Lett. 9(4), H22–H25 (2006).
[Crossref]

N. Hirosaki, R. J. Xie, K. Kimoto, T. Sekiguchi, Y. Yamamoto, T. Suehiro, and M. Mitomo, “Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes,” Appl. Phys. Lett. 86(21), 211905 (2005).
[Crossref]

Hoppe, H. A.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Hoppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all‐nitride phosphor‐converted white light emitting diode,” Phys. Status Solidi., A Appl. Mater. Sci. 202(9), 1727–1732 (2005).
[Crossref]

Hosono, H.

H. Daicho, Y. Shinomiya, K. Enomoto, A. Nakano, H. Sawa, S. Matsuishi, and H. Hosono, “A novel red-emitting K2Ca(PO4)F:Eu2+ phosphor with a large Stokes shift,” Chem. Commun. (Camb.) 54(8), 884–887 (2018).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Im, W. B.

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]

H. S. Jang, W. B. Im, D. C. Lee, D. Y. Jeon, and S. S. Kim, “Enhancement of red spectral emission intensity of Y3Al5O12:Ce3+ phosphor via Pr co-doping and Tb substitution for the application to white LEDs,” J. Lumin. 126(2), 371–377 (2007).
[Crossref]

Iwasaki, T.

H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Izuno, K.

Y. Narukawa, I. Niki, K. Izuno, M. Yamada, Y. Murazki, and T. Mukai, “Phosphor-conversion white light-emitting diodes using InGaN near-ultraviolet chip,” Jpn. J. Appl. Phys. Lett. 41, 371–373 (2002).
[Crossref]

Jang, H. S.

Y.-H. Won, H. S. Jang, K. W. Cho, Y. S. Song, D. Y. Jeon, and H. K. Kwon, “Effect of phosphor geometry on the luminous efficiency of high-power white light-emitting diodes with excellent color rendering property,” Opt. Lett. 34(1), 1–3 (2009).
[Crossref] [PubMed]

H. S. Jang, W. B. Im, D. C. Lee, D. Y. Jeon, and S. S. Kim, “Enhancement of red spectral emission intensity of Y3Al5O12:Ce3+ phosphor via Pr co-doping and Tb substitution for the application to white LEDs,” J. Lumin. 126(2), 371–377 (2007).
[Crossref]

Jeon, D. Y.

Y.-H. Won, H. S. Jang, K. W. Cho, Y. S. Song, D. Y. Jeon, and H. K. Kwon, “Effect of phosphor geometry on the luminous efficiency of high-power white light-emitting diodes with excellent color rendering property,” Opt. Lett. 34(1), 1–3 (2009).
[Crossref] [PubMed]

H. S. Jang, W. B. Im, D. C. Lee, D. Y. Jeon, and S. S. Kim, “Enhancement of red spectral emission intensity of Y3Al5O12:Ce3+ phosphor via Pr co-doping and Tb substitution for the application to white LEDs,” J. Lumin. 126(2), 371–377 (2007).
[Crossref]

Juestel, T.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Hoppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all‐nitride phosphor‐converted white light emitting diode,” Phys. Status Solidi., A Appl. Mater. Sci. 202(9), 1727–1732 (2005).
[Crossref]

Kamon, K.

T. Fukui, K. Kamon, J. Takeshita, H. Hayashi, T. Miyachi, Y. Uchida, S. Kurai, and T. Taguchi, “Superior illuminant characteristics of color rendering and luminous efficacy in multilayered phosphor conversion white light sources by near-ultraviolet light-emitting diodes,” Jpn. J. Appl. Phys. 48(1111R), 112101 (2009).
[Crossref]

Kim, J. K.

E. F. Schubert and J. K. Kim, “Solid-state light sources getting smart,” Science 308(5726), 1274–1278 (2005).
[Crossref] [PubMed]

Kim, S. S.

H. S. Jang, W. B. Im, D. C. Lee, D. Y. Jeon, and S. S. Kim, “Enhancement of red spectral emission intensity of Y3Al5O12:Ce3+ phosphor via Pr co-doping and Tb substitution for the application to white LEDs,” J. Lumin. 126(2), 371–377 (2007).
[Crossref]

Kimoto, K.

N. Hirosaki, R. J. Xie, K. Kimoto, T. Sekiguchi, Y. Yamamoto, T. Suehiro, and M. Mitomo, “Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes,” Appl. Phys. Lett. 86(21), 211905 (2005).
[Crossref]

Kimura, N.

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R. J. Xie, “Extrahigh 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]

Krames, M. R.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Hoppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all‐nitride phosphor‐converted white light emitting diode,” Phys. Status Solidi., A Appl. Mater. Sci. 202(9), 1727–1732 (2005).
[Crossref]

Kuo, H.-C.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Kurai, S.

T. Fukui, K. Kamon, J. Takeshita, H. Hayashi, T. Miyachi, Y. Uchida, S. Kurai, and T. Taguchi, “Superior illuminant characteristics of color rendering and luminous efficacy in multilayered phosphor conversion white light sources by near-ultraviolet light-emitting diodes,” Jpn. J. Appl. Phys. 48(1111R), 112101 (2009).
[Crossref]

Kwon, H. K.

Lee, D. C.

H. S. Jang, W. B. Im, D. C. Lee, D. Y. Jeon, and S. S. Kim, “Enhancement of red spectral emission intensity of Y3Al5O12:Ce3+ phosphor via Pr co-doping and Tb substitution for the application to white LEDs,” J. Lumin. 126(2), 371–377 (2007).
[Crossref]

Lee, J. S.

Lee, P.-T.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Lee, Y. K.

Li, F.

N. Wei, T. Lu, F. Li, W. Zhang, B. Ma, Z. Lu, and J. Qi, “Transparent Ce:Y3Al5O12 ceramic phosphors for white light-emitting diodes,” Appl. Phys. Lett. 101(6), 061902 (2012).
[Crossref]

Li, Z.-T.

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

Lin, B.-C.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Lin, C.-C.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Liu, S.

Z. Liu, S. Liu, K. Wang, and X. Luo, “Optical analysis of color distribution in white LEDs with various packaging methods,” IEEE Photonics Technol. Lett. 20(24), 2027–2029 (2008).
[Crossref]

Liu, Z.

Z. Liu, S. Liu, K. Wang, and X. Luo, “Optical analysis of color distribution in white LEDs with various packaging methods,” IEEE Photonics Technol. Lett. 20(24), 2027–2029 (2008).
[Crossref]

Liu, Z.-Y.

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

Lu, T.

N. Wei, T. Lu, F. Li, W. Zhang, B. Ma, Z. Lu, and J. Qi, “Transparent Ce:Y3Al5O12 ceramic phosphors for white light-emitting diodes,” Appl. Phys. Lett. 101(6), 061902 (2012).
[Crossref]

Lu, Z.

N. Wei, T. Lu, F. Li, W. Zhang, B. Ma, Z. Lu, and J. Qi, “Transparent Ce:Y3Al5O12 ceramic phosphors for white light-emitting diodes,” Appl. Phys. Lett. 101(6), 061902 (2012).
[Crossref]

Luo, X.

H. Zheng, J. Ma, and X. Luo, “Conformal phosphor distribution for whitelighting emitting diode packaging by conventional dispensing coating method with structure control,” IEEE Photonics Technol. Lett. 3(3), 417–421 (2013).

Z. Liu, S. Liu, K. Wang, and X. Luo, “Optical analysis of color distribution in white LEDs with various packaging methods,” IEEE Photonics Technol. Lett. 20(24), 2027–2029 (2008).
[Crossref]

Ma, B.

N. Wei, T. Lu, F. Li, W. Zhang, B. Ma, Z. Lu, and J. Qi, “Transparent Ce:Y3Al5O12 ceramic phosphors for white light-emitting diodes,” Appl. Phys. Lett. 101(6), 061902 (2012).
[Crossref]

Ma, J.

H. Zheng, J. Ma, and X. Luo, “Conformal phosphor distribution for whitelighting emitting diode packaging by conventional dispensing coating method with structure control,” IEEE Photonics Technol. Lett. 3(3), 417–421 (2013).

Maeno, Y.

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Matsuishi, S.

H. Daicho, Y. Shinomiya, K. Enomoto, A. Nakano, H. Sawa, S. Matsuishi, and H. Hosono, “A novel red-emitting K2Ca(PO4)F:Eu2+ phosphor with a large Stokes shift,” Chem. Commun. (Camb.) 54(8), 884–887 (2018).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Mitomo, M.

N. Hirosaki, R. J. Xie, K. Kimoto, T. Sekiguchi, Y. Yamamoto, T. Suehiro, and M. Mitomo, “Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes,” Appl. Phys. Lett. 86(21), 211905 (2005).
[Crossref]

Miyachi, T.

T. Fukui, K. Kamon, J. Takeshita, H. Hayashi, T. Miyachi, Y. Uchida, S. Kurai, and T. Taguchi, “Superior illuminant characteristics of color rendering and luminous efficacy in multilayered phosphor conversion white light sources by near-ultraviolet light-emitting diodes,” Jpn. J. Appl. Phys. 48(1111R), 112101 (2009).
[Crossref]

Mueller, G.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Hoppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all‐nitride phosphor‐converted white light emitting diode,” Phys. Status Solidi., A Appl. Mater. Sci. 202(9), 1727–1732 (2005).
[Crossref]

Mueller-Mach, R.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Hoppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all‐nitride phosphor‐converted white light emitting diode,” Phys. Status Solidi., A Appl. Mater. Sci. 202(9), 1727–1732 (2005).
[Crossref]

Mukai, T.

Y. Narukawa, I. Niki, K. Izuno, M. Yamada, Y. Murazki, and T. Mukai, “Phosphor-conversion white light-emitting diodes using InGaN near-ultraviolet chip,” Jpn. J. Appl. Phys. Lett. 41, 371–373 (2002).
[Crossref]

Murazki, Y.

Y. Narukawa, I. Niki, K. Izuno, M. Yamada, Y. Murazki, and T. Mukai, “Phosphor-conversion white light-emitting diodes using InGaN near-ultraviolet chip,” Jpn. J. Appl. Phys. Lett. 41, 371–373 (2002).
[Crossref]

Naito, A.

K. Uheda, N. Hirosaki, Y. Yamamoto, A. Naito, T. Nakajima, and H. Yamamoto, “Luminescence properties of a red phosphor, CaAlSiN3: Eu2+, for white light-emitting diodes,” Electrochem. Solid-State Lett. 9(4), H22–H25 (2006).
[Crossref]

Nakajima, T.

K. Uheda, N. Hirosaki, Y. Yamamoto, A. Naito, T. Nakajima, and H. Yamamoto, “Luminescence properties of a red phosphor, CaAlSiN3: Eu2+, for white light-emitting diodes,” Electrochem. Solid-State Lett. 9(4), H22–H25 (2006).
[Crossref]

Nakano, A.

H. Daicho, Y. Shinomiya, K. Enomoto, A. Nakano, H. Sawa, S. Matsuishi, and H. Hosono, “A novel red-emitting K2Ca(PO4)F:Eu2+ phosphor with a large Stokes shift,” Chem. Commun. (Camb.) 54(8), 884–887 (2018).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
[Crossref] [PubMed]

Narukawa, Y.

Y. Narukawa, I. Niki, K. Izuno, M. Yamada, Y. Murazki, and T. Mukai, “Phosphor-conversion white light-emitting diodes using InGaN near-ultraviolet chip,” Jpn. J. Appl. Phys. Lett. 41, 371–373 (2002).
[Crossref]

Niki, I.

Y. Narukawa, I. Niki, K. Izuno, M. Yamada, Y. Murazki, and T. Mukai, “Phosphor-conversion white light-emitting diodes using InGaN near-ultraviolet chip,” Jpn. J. Appl. Phys. Lett. 41, 371–373 (2002).
[Crossref]

Nishibori, E.

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Noguchi, Y.

K. Bando, K. Sakano, Y. Noguchi, and Y. Shimizu, “Development of high-bright and pure-white LED lamps,” J. Light Visual Environ. 22(1), 2–5 (1998).
[Crossref]

Peng, Y.-N.

Qi, J.

N. Wei, T. Lu, F. Li, W. Zhang, B. Ma, Z. Lu, and J. Qi, “Transparent Ce:Y3Al5O12 ceramic phosphors for white light-emitting diodes,” Appl. Phys. Lett. 101(6), 061902 (2012).
[Crossref]

Sakano, K.

K. Bando, K. Sakano, Y. Noguchi, and Y. Shimizu, “Development of high-bright and pure-white LED lamps,” J. Light Visual Environ. 22(1), 2–5 (1998).
[Crossref]

Sakata, M.

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Sakuma, K.

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R. J. Xie, “Extrahigh 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]

Sasaki, Y.

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Sawa, H.

H. Daicho, Y. Shinomiya, K. Enomoto, A. Nakano, H. Sawa, S. Matsuishi, and H. Hosono, “A novel red-emitting K2Ca(PO4)F:Eu2+ phosphor with a large Stokes shift,” Chem. Commun. (Camb.) 54(8), 884–887 (2018).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Schmidt, P.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Hoppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all‐nitride phosphor‐converted white light emitting diode,” Phys. Status Solidi., A Appl. Mater. Sci. 202(9), 1727–1732 (2005).
[Crossref]

Schnick, W.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Hoppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all‐nitride phosphor‐converted white light emitting diode,” Phys. Status Solidi., A Appl. Mater. Sci. 202(9), 1727–1732 (2005).
[Crossref]

Schubert, E. F.

E. F. Schubert and J. K. Kim, “Solid-state light sources getting smart,” Science 308(5726), 1274–1278 (2005).
[Crossref] [PubMed]

Sekiguchi, T.

N. Hirosaki, R. J. Xie, K. Kimoto, T. Sekiguchi, Y. Yamamoto, T. Suehiro, and M. Mitomo, “Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes,” Appl. Phys. Lett. 86(21), 211905 (2005).
[Crossref]

Shen, J.-Y.

Shi, F. G.

Y. Shuai, Y. He, N. T. Tran, and F. G. Shi, “Angular CCT uniformity of phosphor converted white LEDs: effects of phosphor materials and packaging structures,” IEEE Photonics Technol. Lett. 23(3), 137–139 (2011).
[Crossref]

J. P. You, N. T. Tran, and F. G. Shi, “Light extraction enhanced white light-emitting diodes with multi-layered phosphor configuration,” Opt. Express 18(5), 5055–5060 (2010).
[Crossref] [PubMed]

Shih, M.-H.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Shimizu, Y.

K. Bando, K. Sakano, Y. Noguchi, and Y. Shimizu, “Development of high-bright and pure-white LED lamps,” J. Light Visual Environ. 22(1), 2–5 (1998).
[Crossref]

Shinomiya, Y.

H. Daicho, Y. Shinomiya, K. Enomoto, A. Nakano, H. Sawa, S. Matsuishi, and H. Hosono, “A novel red-emitting K2Ca(PO4)F:Eu2+ phosphor with a large Stokes shift,” Chem. Commun. (Camb.) 54(8), 884–887 (2018).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
[Crossref] [PubMed]

H. Daicho, T. Iwasaki, K. Enomoto, Y. Sasaki, Y. Maeno, Y. Shinomiya, S. Aoyagi, E. Nishibori, M. Sakata, H. Sawa, S. Matsuishi, and H. Hosono, “A novel phosphor for glareless white light-emitting diodes,” Nat. Commun. 3(1), 1132 (2012).
[Crossref] [PubMed]

Shuai, Y.

Y. Shuai, Y. He, N. T. Tran, and F. G. Shi, “Angular CCT uniformity of phosphor converted white LEDs: effects of phosphor materials and packaging structures,” IEEE Photonics Technol. Lett. 23(3), 137–139 (2011).
[Crossref]

Song, Y. S.

Stadler, F.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Hoppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all‐nitride phosphor‐converted white light emitting diode,” Phys. Status Solidi., A Appl. Mater. Sci. 202(9), 1727–1732 (2005).
[Crossref]

Suehiro, T.

N. Hirosaki, R. J. Xie, K. Kimoto, T. Sekiguchi, Y. Yamamoto, T. Suehiro, and M. Mitomo, “Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes,” Appl. Phys. Lett. 86(21), 211905 (2005).
[Crossref]

Sun, C.-C.

Taguchi, T.

T. Fukui, K. Kamon, J. Takeshita, H. Hayashi, T. Miyachi, Y. Uchida, S. Kurai, and T. Taguchi, “Superior illuminant characteristics of color rendering and luminous efficacy in multilayered phosphor conversion white light sources by near-ultraviolet light-emitting diodes,” Jpn. J. Appl. Phys. 48(1111R), 112101 (2009).
[Crossref]

Takeshita, J.

T. Fukui, K. Kamon, J. Takeshita, H. Hayashi, T. Miyachi, Y. Uchida, S. Kurai, and T. Taguchi, “Superior illuminant characteristics of color rendering and luminous efficacy in multilayered phosphor conversion white light sources by near-ultraviolet light-emitting diodes,” Jpn. J. Appl. Phys. 48(1111R), 112101 (2009).
[Crossref]

Tan, Y.-E.

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

Tang, Y.

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

Tran, N. T.

Y. Shuai, Y. He, N. T. Tran, and F. G. Shi, “Angular CCT uniformity of phosphor converted white LEDs: effects of phosphor materials and packaging structures,” IEEE Photonics Technol. Lett. 23(3), 137–139 (2011).
[Crossref]

J. P. You, N. T. Tran, and F. G. Shi, “Light extraction enhanced white light-emitting diodes with multi-layered phosphor configuration,” Opt. Express 18(5), 5055–5060 (2010).
[Crossref] [PubMed]

Tsai, H.-H.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Uchida, Y.

T. Fukui, K. Kamon, J. Takeshita, H. Hayashi, T. Miyachi, Y. Uchida, S. Kurai, and T. Taguchi, “Superior illuminant characteristics of color rendering and luminous efficacy in multilayered phosphor conversion white light sources by near-ultraviolet light-emitting diodes,” Jpn. J. Appl. Phys. 48(1111R), 112101 (2009).
[Crossref]

Uheda, K.

K. Uheda, N. Hirosaki, Y. Yamamoto, A. Naito, T. Nakajima, and H. Yamamoto, “Luminescence properties of a red phosphor, CaAlSiN3: Eu2+, for white light-emitting diodes,” Electrochem. Solid-State Lett. 9(4), H22–H25 (2006).
[Crossref]

Wang, K.

Z. Liu, S. Liu, K. Wang, and X. Luo, “Optical analysis of color distribution in white LEDs with various packaging methods,” IEEE Photonics Technol. Lett. 20(24), 2027–2029 (2008).
[Crossref]

Wang, K. Y.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Wang, Y.-H.

Wei, N.

N. Wei, T. Lu, F. Li, W. Zhang, B. Ma, Z. Lu, and J. Qi, “Transparent Ce:Y3Al5O12 ceramic phosphors for white light-emitting diodes,” Appl. Phys. Lett. 101(6), 061902 (2012).
[Crossref]

Won, Y.-H.

Xie, R. J.

N. Kimura, K. Sakuma, S. Hirafune, K. Asano, N. Hirosaki, and R. J. Xie, “Extrahigh 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]

N. Hirosaki, R. J. Xie, K. Kimoto, T. Sekiguchi, Y. Yamamoto, T. Suehiro, and M. Mitomo, “Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes,” Appl. Phys. Lett. 86(21), 211905 (2005).
[Crossref]

Yamada, M.

Y. Narukawa, I. Niki, K. Izuno, M. Yamada, Y. Murazki, and T. Mukai, “Phosphor-conversion white light-emitting diodes using InGaN near-ultraviolet chip,” Jpn. J. Appl. Phys. Lett. 41, 371–373 (2002).
[Crossref]

Yamada, W.

H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
[Crossref] [PubMed]

Yamamoto, H.

K. Uheda, N. Hirosaki, Y. Yamamoto, A. Naito, T. Nakajima, and H. Yamamoto, “Luminescence properties of a red phosphor, CaAlSiN3: Eu2+, for white light-emitting diodes,” Electrochem. Solid-State Lett. 9(4), H22–H25 (2006).
[Crossref]

Yamamoto, Y.

K. Uheda, N. Hirosaki, Y. Yamamoto, A. Naito, T. Nakajima, and H. Yamamoto, “Luminescence properties of a red phosphor, CaAlSiN3: Eu2+, for white light-emitting diodes,” Electrochem. Solid-State Lett. 9(4), H22–H25 (2006).
[Crossref]

N. Hirosaki, R. J. Xie, K. Kimoto, T. Sekiguchi, Y. Yamamoto, T. Suehiro, and M. Mitomo, “Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes,” Appl. Phys. Lett. 86(21), 211905 (2005).
[Crossref]

Yang, T.-H.

Ying, S.-P.

You, J. P.

Yu, P.

K.-J. Chen, H.-V. Han, B.-C. Lin, H.-C. Chen, M.-H. Shih, S.-H. Chien, K. Y. Wang, H.-H. Tsai, P. Yu, P.-T. Lee, C.-C. Lin, and H.-C. Kuo, “Improving the angular color uniformity of hybrid phosphor structures in white light-emitting diodes,” IEEE Electron Device Lett. 34(10), 1280–1282 (2013).
[Crossref]

Zhang, W.

N. Wei, T. Lu, F. Li, W. Zhang, B. Ma, Z. Lu, and J. Qi, “Transparent Ce:Y3Al5O12 ceramic phosphors for white light-emitting diodes,” Appl. Phys. Lett. 101(6), 061902 (2012).
[Crossref]

Zheng, H.

H. Zheng, J. Ma, and X. Luo, “Conformal phosphor distribution for whitelighting emitting diode packaging by conventional dispensing coating method with structure control,” IEEE Photonics Technol. Lett. 3(3), 417–421 (2013).

Zhu, B.-M.

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

ACS Appl. Mater. Interfaces (1)

H. Daicho, T. Iwasaki, Y. Shinomiya, A. Nakano, H. Sawa, W. Yamada, S. Matsuishi, and H. Hosono, “Nanocomposite phosphor consisting of CaI2:Eu2+ single nanocrystals embedded in crystalline SiO2,” ACS Appl. Mater. Interfaces 9(47), 41405–41412 (2017).
[Crossref] [PubMed]

Appl. Phys. Lett. (3)

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Figures (7)

Fig. 1
Fig. 1 PLE (solid curves) and PL (dashed curves) spectra of NCP, Cl_MS:Eu2+, and FOLP:Eu2+ at room temperature.
Fig. 2
Fig. 2 (a) CIE color coordinates (cx, cy) of WLEDs fabricated by using phosphor sheets of various thicknesses. Blue triangles, YAG:Ce3+ combining with a blue chip; red circles, mixed-phosphor 1 combining with a violet chip; green squares, mixed-phosphor 2 combining with a violet chip (emission peak 405 nm). Inset shows the structure of the WLED used in this experiment. (b) 471nm normalized electro-luminescence spectra of WLEDs containing a violet chip and a mixed-phosphor 1 sheet with different thicknesses. Inset shows enlarged spectra of violet region indicating violet leakage-light.
Fig. 3
Fig. 3 (a), (b) CIE color coordinates (cx, cy) of WLEDs containing a blue chip and a YAG:Ce3+ sheet as a function of the peak wavelength of the blue chip.
Fig. 4
Fig. 4 PLE spectrum of YAG:Ce3+ with monitoring at 558 nm.
Fig. 5
Fig. 5 (a), (b) CIE color coordinates (cx, cy) of WLEDs containing a violet chip and a mixed-phosphor 1 sheet as a function of the peak wavelength of the violet chip.
Fig. 6
Fig. 6 Luminous flux of WLEDs containing a violet chip and mixed-phosphor 1 as a function of phosphor layer thickness containing a constant amount quantity of phosphors. The insets show the structures of the WLEDs used in this experiment.
Fig. 7
Fig. 7 (a), (b) CIE color coordinates (cx, cy) along the centerline of an encapsulated WLED as a function of projection position from the center point of the hemispherical dome. Blue triangles: YAG:Ce3+ combined with a blue chip; red circles: mixed-phosphor 1 combined with a violet chip; green squares: mixed-phosphor 2 combined with a violet chip. (c) Electroluminescence spectrum of an encapsulated WLED consisting of a violet chip and mixed-phosphor 1 driven at 100 mA. The inset is a representative emission image of the encapsulated WLED.

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