Study of temperature sensitive optical parameters and junction temperature determination of light-emitting diodes

被引：41
|
作者：
Lin, Yue [1 ,2 ]
Gao, Yu-Lin [1 ,2 ]
Lu, Yi-Jun [1 ,2 ]
Zhu, Li-Hong [1 ,2 ]
Zhang, Yong [3 ]
Chen, Zhong [1 ,2 ]
机构：
[1] Xiamen Univ, Dept Elect Sci, Xiamen 361005, Fujian, Peoples R China
[2] Xiamen Univ, Fujian Engn Res Ctr Solid State Lighting, Xiamen 361005, Fujian, Peoples R China
[3] Univ N Carolina, Elect & Comp Engn Dept, Charlotte, NC 28223 USA
来源：
APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 20期
关键词：
D O I：
10.1063/1.4718612
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigate the current and temperature dependence of GaN-based high power blue light-emitting diodes and identify a set of temperature sensitive optical parameters (TSOPs) that can provide a real-time solution for determining the junction temperature (T-j). The relationships among T-j, forward current and TSOPs, "center of mass" wavelength, and, in particular, full width at half maximum (FWHM) have been studied, and the relevant mathematic models have been developed. The analysis indicates that using FWHM may yield higher accuracy than using other parameters as TSOPs. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4718612]
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页数：4
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