Thermal degradation kinetics of LED lamps in step-up-stress and step-down-stress accelerated degradation testing
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- 作者：Miao Caia ; Daoguo Yanga ; daoguo_yang@163.com" class="auth_mail" title="E-mail the corresponding author ; Jianna Zhenga ; Yuezhu Moa ; Jianlin Huangb ; Jiwen Xua ; Wenbin Chena ; Guoqi Zhanga ; b ; Xianping Chenc ; xianpingchen@cqu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Thermal degradation kinetics ; Step-down-stress accelerated degradation testing ; Initial activation phase ; LED lamp ; Step-up-stress accelerated degradation testing ; Correlation analysis
- 刊名：Applied Thermal Engineering
- 出版年：2016
- 出版时间：25 August 2016
- 年：2016
- 卷：107
- 期：Complete
- 页码：918-926
- 全文大小：2270 K
文摘
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Step-down-stress accelerated degradation testing (SDSADT) for LED lamps is proposed.
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The effects of stress orders on LED lamps between SDSADT and SUSADT are analyzed.
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The SDSADT can rapidly terminate the initial activation phase of LED products.
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The decay kinetics of a lamp with strong CHD is unrelated to historical loaded stress.
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Optical power decay exhibits a close correlation with tunneling saturation current.