Effect of junction temperature on the performance of high-power white LEDs

被引：1

作者：

Li, Jijun ^{[1
]}

Zhang, Lihua ^{[1
]}

Wang, Anxiang ^{[2
]}

Zhao, Chunwang ^{[1
]}

Lin, Lin ^{[1
]}

机构：

[1] Inner Mongolia Univ Technol, Sch Sci, Hohhot 010051, Peoples R China

[2] Xian Polytechn Univ, Sch Sci, Xian 710048, Peoples R China

来源：

LED AND DISPLAY TECHNOLOGIES | 2010年 / 7852卷

基金：

中国国家自然科学基金;

关键词：

high-power white LEDs; junction temperature; forward voltage; light output; lifetime; SYSTEM DYNAMICS MODEL;

D O I：

10.1117/12.871700

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Junction temperature is a critically important parameter for high-power white LED applications. It has directly influence upon light output, device life time, reliability, and emitting wavelength of an LED. In this paper, the principle and common types of LED is introduced. The effects of the junction temperature on performance of high-power LED are discussed. The influencing factors of the junction temperature are analyzed, and some general guidelines to maintain a low junction temperature to keep good performance of an LED are given.

引用

页数：6

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