Abstract

Phosphor converted white LEDs (pc-WLED) with different geometries, namely remote-dome, remote-plate, half-dome, and conformal-coating packages, were studied using simulations to obtain the thermal power and the temperature distribution. The results of an experiment carried out to measure the temperature distribution in these pc-WLEDs validate the simulation results. A hotspot always occurs in the phosphor region. The conformal-coating package is the most feasible choice to reduce the hotspot temperature comparing with the other geometries.

© 2015 Optical Society of America

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References

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  1. C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
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    [Crossref]
  4. V. Bachmann, C. Ronda, and A. Meijerink, “Temperature quenching of yellow Ce3+ luminescence in YAG:Ce,” Chem. Mater. 21(10), 2077–2084 (2009).
    [Crossref]
  5. E. M. Petrie, Handbook of Adhesives and Sealants (McGraw-Hill, 2007).
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    [Crossref]
  7. X. Luo, X. Fu, F. Chen, and H. Zheng, “Phosphor self-heating in phosphor converted light emitting diode packaging,” Int. J. Heat Mass Transfer 58(1-2), 276–281 (2013).
    [Crossref]
  8. P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).
  9. F. P. Wenzl, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, P. Fulmek, and J. Nicolics, “The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes,” Opt. Express 21(S3), A439–A449 (2013).
    [Crossref] [PubMed]
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    [Crossref]

2015 (2)

T.-Y. Chung, S.-C. Chiou, Y.-Y. Chang, C.-C. Sun, T.-H. Yang, and S.-Y. Chen, “Study of temperature distribution within pc-WLEDs using the remote-dome phosphor package,” IEEE Photonics J. 7(2), 8200111 (2015).
[Crossref]

P. Fulmek, J. Nicolics, W. Nemitz, S. Schweitzer, C. Sommer, P. Hartmann, F. Schrank, and F. P. Wenzl, “The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes,” J. Lumin. 169, 559–568 (2015).
[Crossref]

2014 (1)

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

2013 (3)

F. P. Wenzl, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, P. Fulmek, and J. Nicolics, “The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes,” Opt. Express 21(S3), A439–A449 (2013).
[Crossref] [PubMed]

X. Luo, X. Fu, F. Chen, and H. Zheng, “Phosphor self-heating in phosphor converted light emitting diode packaging,” Int. J. Heat Mass Transfer 58(1-2), 276–281 (2013).
[Crossref]

P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).

2010 (1)

S. Ye, F. Xiao, Y. X. Pan, Y. Y. Ma, and Q. Y. Zhang, “Phosphors in phosphor-converted white light-emitting diodes: Recent advances in materials, techniques and properties,” Mater. Sci. Eng. Rep. 71(1), 1–34 (2010).
[Crossref]

2009 (1)

V. Bachmann, C. Ronda, and A. Meijerink, “Temperature quenching of yellow Ce3+ luminescence in YAG:Ce,” Chem. Mater. 21(10), 2077–2084 (2009).
[Crossref]

2005 (1)

Bachmann, V.

V. Bachmann, C. Ronda, and A. Meijerink, “Temperature quenching of yellow Ce3+ luminescence in YAG:Ce,” Chem. Mater. 21(10), 2077–2084 (2009).
[Crossref]

Chang, Y.-Y.

T.-Y. Chung, S.-C. Chiou, Y.-Y. Chang, C.-C. Sun, T.-H. Yang, and S.-Y. Chen, “Study of temperature distribution within pc-WLEDs using the remote-dome phosphor package,” IEEE Photonics J. 7(2), 8200111 (2015).
[Crossref]

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Chen, C.-C.

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Chen, F.

X. Luo, X. Fu, F. Chen, and H. Zheng, “Phosphor self-heating in phosphor converted light emitting diode packaging,” Int. J. Heat Mass Transfer 58(1-2), 276–281 (2013).
[Crossref]

Chen, S.-Y.

T.-Y. Chung, S.-C. Chiou, Y.-Y. Chang, C.-C. Sun, T.-H. Yang, and S.-Y. Chen, “Study of temperature distribution within pc-WLEDs using the remote-dome phosphor package,” IEEE Photonics J. 7(2), 8200111 (2015).
[Crossref]

Chen, Y.-C.

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Chiou, S.-C.

T.-Y. Chung, S.-C. Chiou, Y.-Y. Chang, C.-C. Sun, T.-H. Yang, and S.-Y. Chen, “Study of temperature distribution within pc-WLEDs using the remote-dome phosphor package,” IEEE Photonics J. 7(2), 8200111 (2015).
[Crossref]

Chung, T.-Y.

T.-Y. Chung, S.-C. Chiou, Y.-Y. Chang, C.-C. Sun, T.-H. Yang, and S.-Y. Chen, “Study of temperature distribution within pc-WLEDs using the remote-dome phosphor package,” IEEE Photonics J. 7(2), 8200111 (2015).
[Crossref]

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Fu, X.

X. Luo, X. Fu, F. Chen, and H. Zheng, “Phosphor self-heating in phosphor converted light emitting diode packaging,” Int. J. Heat Mass Transfer 58(1-2), 276–281 (2013).
[Crossref]

Fulmek, P.

P. Fulmek, J. Nicolics, W. Nemitz, S. Schweitzer, C. Sommer, P. Hartmann, F. Schrank, and F. P. Wenzl, “The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes,” J. Lumin. 169, 559–568 (2015).
[Crossref]

F. P. Wenzl, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, P. Fulmek, and J. Nicolics, “The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes,” Opt. Express 21(S3), A439–A449 (2013).
[Crossref] [PubMed]

P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).

Glorieux, B.

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Gu, Y.

Hartmann, P.

P. Fulmek, J. Nicolics, W. Nemitz, S. Schweitzer, C. Sommer, P. Hartmann, F. Schrank, and F. P. Wenzl, “The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes,” J. Lumin. 169, 559–568 (2015).
[Crossref]

F. P. Wenzl, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, P. Fulmek, and J. Nicolics, “The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes,” Opt. Express 21(S3), A439–A449 (2013).
[Crossref] [PubMed]

P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).

Hoschopf, H.

P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).

F. P. Wenzl, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, P. Fulmek, and J. Nicolics, “The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes,” Opt. Express 21(S3), A439–A449 (2013).
[Crossref] [PubMed]

Lai, K.-Y.

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Langer, G.

F. P. Wenzl, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, P. Fulmek, and J. Nicolics, “The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes,” Opt. Express 21(S3), A439–A449 (2013).
[Crossref] [PubMed]

P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).

Lee, T.-X.

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Li, D.-R.

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Liu, C.-Y.

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Lu, C.-Y.

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Luo, X.

X. Luo, X. Fu, F. Chen, and H. Zheng, “Phosphor self-heating in phosphor converted light emitting diode packaging,” Int. J. Heat Mass Transfer 58(1-2), 276–281 (2013).
[Crossref]

Ma, Y. Y.

S. Ye, F. Xiao, Y. X. Pan, Y. Y. Ma, and Q. Y. Zhang, “Phosphors in phosphor-converted white light-emitting diodes: Recent advances in materials, techniques and properties,” Mater. Sci. Eng. Rep. 71(1), 1–34 (2010).
[Crossref]

Meijerink, A.

V. Bachmann, C. Ronda, and A. Meijerink, “Temperature quenching of yellow Ce3+ luminescence in YAG:Ce,” Chem. Mater. 21(10), 2077–2084 (2009).
[Crossref]

Narendran, N.

Nemitz, W.

P. Fulmek, J. Nicolics, W. Nemitz, S. Schweitzer, C. Sommer, P. Hartmann, F. Schrank, and F. P. Wenzl, “The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes,” J. Lumin. 169, 559–568 (2015).
[Crossref]

Nicolics, J.

P. Fulmek, J. Nicolics, W. Nemitz, S. Schweitzer, C. Sommer, P. Hartmann, F. Schrank, and F. P. Wenzl, “The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes,” J. Lumin. 169, 559–568 (2015).
[Crossref]

F. P. Wenzl, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, P. Fulmek, and J. Nicolics, “The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes,” Opt. Express 21(S3), A439–A449 (2013).
[Crossref] [PubMed]

P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).

Pachler, P.

P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).

F. P. Wenzl, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, P. Fulmek, and J. Nicolics, “The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes,” Opt. Express 21(S3), A439–A449 (2013).
[Crossref] [PubMed]

Pan, Y. X.

S. Ye, F. Xiao, Y. X. Pan, Y. Y. Ma, and Q. Y. Zhang, “Phosphors in phosphor-converted white light-emitting diodes: Recent advances in materials, techniques and properties,” Mater. Sci. Eng. Rep. 71(1), 1–34 (2010).
[Crossref]

Ronda, C.

V. Bachmann, C. Ronda, and A. Meijerink, “Temperature quenching of yellow Ce3+ luminescence in YAG:Ce,” Chem. Mater. 21(10), 2077–2084 (2009).
[Crossref]

Schrank, F.

P. Fulmek, J. Nicolics, W. Nemitz, S. Schweitzer, C. Sommer, P. Hartmann, F. Schrank, and F. P. Wenzl, “The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes,” J. Lumin. 169, 559–568 (2015).
[Crossref]

Schweitzer, S.

P. Fulmek, J. Nicolics, W. Nemitz, S. Schweitzer, C. Sommer, P. Hartmann, F. Schrank, and F. P. Wenzl, “The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes,” J. Lumin. 169, 559–568 (2015).
[Crossref]

Sommer, C.

P. Fulmek, J. Nicolics, W. Nemitz, S. Schweitzer, C. Sommer, P. Hartmann, F. Schrank, and F. P. Wenzl, “The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes,” J. Lumin. 169, 559–568 (2015).
[Crossref]

F. P. Wenzl, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, P. Fulmek, and J. Nicolics, “The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes,” Opt. Express 21(S3), A439–A449 (2013).
[Crossref] [PubMed]

P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).

Sun, C.-C.

T.-Y. Chung, S.-C. Chiou, Y.-Y. Chang, C.-C. Sun, T.-H. Yang, and S.-Y. Chen, “Study of temperature distribution within pc-WLEDs using the remote-dome phosphor package,” IEEE Photonics J. 7(2), 8200111 (2015).
[Crossref]

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Ting, Z.-Y.

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Wenzl, F. P.

P. Fulmek, J. Nicolics, W. Nemitz, S. Schweitzer, C. Sommer, P. Hartmann, F. Schrank, and F. P. Wenzl, “The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes,” J. Lumin. 169, 559–568 (2015).
[Crossref]

F. P. Wenzl, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, P. Fulmek, and J. Nicolics, “The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes,” Opt. Express 21(S3), A439–A449 (2013).
[Crossref] [PubMed]

P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).

Xiao, F.

S. Ye, F. Xiao, Y. X. Pan, Y. Y. Ma, and Q. Y. Zhang, “Phosphors in phosphor-converted white light-emitting diodes: Recent advances in materials, techniques and properties,” Mater. Sci. Eng. Rep. 71(1), 1–34 (2010).
[Crossref]

Yang, T.-H.

T.-Y. Chung, S.-C. Chiou, Y.-Y. Chang, C.-C. Sun, T.-H. Yang, and S.-Y. Chen, “Study of temperature distribution within pc-WLEDs using the remote-dome phosphor package,” IEEE Photonics J. 7(2), 8200111 (2015).
[Crossref]

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Ye, S.

S. Ye, F. Xiao, Y. X. Pan, Y. Y. Ma, and Q. Y. Zhang, “Phosphors in phosphor-converted white light-emitting diodes: Recent advances in materials, techniques and properties,” Mater. Sci. Eng. Rep. 71(1), 1–34 (2010).
[Crossref]

Zhang, Q. Y.

S. Ye, F. Xiao, Y. X. Pan, Y. Y. Ma, and Q. Y. Zhang, “Phosphors in phosphor-converted white light-emitting diodes: Recent advances in materials, techniques and properties,” Mater. Sci. Eng. Rep. 71(1), 1–34 (2010).
[Crossref]

Zheng, H.

X. Luo, X. Fu, F. Chen, and H. Zheng, “Phosphor self-heating in phosphor converted light emitting diode packaging,” Int. J. Heat Mass Transfer 58(1-2), 276–281 (2013).
[Crossref]

Adv. Opt. Mater. (1)

P. Fulmek, C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, G. Langer, J. Nicolics, and F. P. Wenzl, “On the thermal load of the color-conversion elements in phosphor-based white light-emitting diodes,” Adv. Opt. Mater. 1, 753–762 (2013).

Chem. Mater. (1)

V. Bachmann, C. Ronda, and A. Meijerink, “Temperature quenching of yellow Ce3+ luminescence in YAG:Ce,” Chem. Mater. 21(10), 2077–2084 (2009).
[Crossref]

IEEE Photonics J. (1)

T.-Y. Chung, S.-C. Chiou, Y.-Y. Chang, C.-C. Sun, T.-H. Yang, and S.-Y. Chen, “Study of temperature distribution within pc-WLEDs using the remote-dome phosphor package,” IEEE Photonics J. 7(2), 8200111 (2015).
[Crossref]

Int. J. Heat Mass Transfer (1)

X. Luo, X. Fu, F. Chen, and H. Zheng, “Phosphor self-heating in phosphor converted light emitting diode packaging,” Int. J. Heat Mass Transfer 58(1-2), 276–281 (2013).
[Crossref]

J. Display Technol. (1)

J. Lumin. (1)

P. Fulmek, J. Nicolics, W. Nemitz, S. Schweitzer, C. Sommer, P. Hartmann, F. Schrank, and F. P. Wenzl, “The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes,” J. Lumin. 169, 559–568 (2015).
[Crossref]

J. Solid State Light. (1)

C.-C. Sun, Y.-Y. Chang, T.-H. Yang, T.-Y. Chung, C.-C. Chen, T.-X. Lee, D.-R. Li, C.-Y. Lu, Z.-Y. Ting, B. Glorieux, Y.-C. Chen, K.-Y. Lai, and C.-Y. Liu, “Packaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy,” J. Solid State Light. 1(1), 19 (2014).
[Crossref]

Mater. Sci. Eng. Rep. (1)

S. Ye, F. Xiao, Y. X. Pan, Y. Y. Ma, and Q. Y. Zhang, “Phosphors in phosphor-converted white light-emitting diodes: Recent advances in materials, techniques and properties,” Mater. Sci. Eng. Rep. 71(1), 1–34 (2010).
[Crossref]

Opt. Express (1)

Other (1)

E. M. Petrie, Handbook of Adhesives and Sealants (McGraw-Hill, 2007).

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Figures (12)

Fig. 1
Fig. 1 Schematic configuration of the (a) remote-dome package; (b) remote-plate package; (c) half-dome package; and (d) conformal-coating package.
Fig. 2
Fig. 2 Simulation results for a remote-plate package pc-WLED where: (a) q ˙ ph ( x,y,z ) is in units of W/m3 and qLED is about 1.49 × 1010 W/m3 and is off the scale; (b) T( x,y,z ) is in units of °C.
Fig. 3
Fig. 3 Simulation results for a half-dome package pc-WLED where: (a) q ˙ ( x,y,z ) is in units of W/m3 and qLED is about 1.49 × 1010 W/m3 and is off the scale; (b) T( x,y,z ) is in units of °C.
Fig. 4
Fig. 4 Simulation results for a conformal-coating package pc-WLED where: (a) q ˙ ( x,y,z ) is in units of W/m3 and qLED is about 1.49 × 1010 W/m3 and is off the scale; (b) T( x,y,z ) is in units of °C.
Fig. 5
Fig. 5 Th versus zh for different dph in remote-plate package pc-WLEDs.
Fig. 6
Fig. 6 Th and zh versus dph in half-dome package pc-WLEDs.
Fig. 7
Fig. 7 Th and zh versus dph in conformal-coating package pc-WLEDs.
Fig. 8
Fig. 8 Images of the cut surface of cut-in-half pc-WLEDs with: (a) remote-dome; (b) remote-plate; (c) half-dome; and (d) conformal-coating packages.
Fig. 9
Fig. 9 The remote-dome package pc-WLED was operated at 1.23 W with a substrate temperature of 50.4°C: (a) measured T( x,y,z ) ; (b) simulated T( x,y,z ) ; and (c) identical simulation as (b) but with 0.58⋅ q ˙ ph ( x,y,z ) .
Fig. 10
Fig. 10 The remote-plate package pc-WLED was operated at 1.27 W with a substrate temperature of 58.8°C: (a) measured T( x,y,z ) ; (b) simulated T( x,y,z ) ; and (c) identical simulation as (b) but with 0.8⋅ q ˙ ph ( x,y,z ) .
Fig. 11
Fig. 11 The half-dome package pc-WLED was operated at 1.28 W with a substrate temperature of 51.6°C: (a) measured T( x,y,z ) ; (b) simulated T( x,y,z ) with; and (c) identical simulation as (b) but with 0.4⋅ q ˙ ph ( x,y,z ) .
Fig. 12
Fig. 12 The conformal-coating package pc-WLED was operated at 1.28 W with a substrate temperature of 57.4°C: (a) measured T( x,y,z ) ; and (b) simulated T( x,y,z ) .

Tables (1)

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Table 1 Simulation Parameters Used in This Work

Equations (1)

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q ˙ L E D = P L E D ( 1 η L E D ) V L E D

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