Effect of the Thermal Characteristics of Phosphor for the Conformal and Remote Structures in White Light-Emitting Diodes

K. J. Chen; B. C. Lin; H. C. Chen; M. H. Shih; C. H. Wang; H. T. Kuo; H. H. Tsai; M. Y. Kuo; S. H. Chien; P. T. Lee; C. C. Lin; H. C. Kuo

doi:10.1109/JPHOT.2013.2278513

IEEE Photonics Journal (Jan 2013)

Effect of the Thermal Characteristics of Phosphor for the Conformal and Remote Structures in White Light-Emitting Diodes

K. J. Chen,
B. C. Lin,
H. C. Chen,
M. H. Shih,
C. H. Wang,
H. T. Kuo,
H. H. Tsai,
M. Y. Kuo,
S. H. Chien,
P. T. Lee,
C. C. Lin,
H. C. Kuo

Affiliations

K. J. Chen: <formula formulatype="inline"><tex Notation="TeX">$^{1}$</tex></formula> Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan
B. C. Lin: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu , Taiwan
H. C. Chen: <formula formulatype="inline"><tex Notation="TeX">$^{2}$</tex></formula> Electronics and Optoelectronics Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
M. H. Shih: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan
C. H. Wang: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan
H. T. Kuo: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan
H. H. Tsai: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan
M. Y. Kuo: <formula formulatype="inline"><tex Notation="TeX">$^{3}$</tex></formula> Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan
S. H. Chien: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan
P. T. Lee: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan
C. C. Lin: <formula formulatype="inline"><tex Notation="TeX">$^{4}$</tex></formula> Institute of Photonic System, National Chiao Tung University, Tainan, Taiwan
H. C. Kuo: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan

DOI: https://doi.org/10.1109/JPHOT.2013.2278513
Journal volume & issue: Vol. 5, no. 5
pp. 8200508 – 8200508

Abstract

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The influence of the thermal effect of phosphor for conformal and remote structures in white light-emitting diodes was investigated using the junction and phosphor temperatures. Comparing the measured temperatures with IR thermometer, the remote structure has a higher phosphor temperature than the conformal structure. This result indicates that the phosphor in the conformal structure has demonstrated superior conduction because of the high thermal conductivity in surrounding. Furthermore, thermal distribution in the simulation results has shown to have favorable agreement with the experimental results. Consequently, the lifetime measurement is shown to verify the results of the simulation and experiment for both structural types.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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