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Author:

吴国庆 (吴国庆.) | 郭伟玲 (郭伟玲.) | 朱彦旭 (朱彦旭.) | 刘建朋 (刘建朋.)

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CQVIP PKU CSCD

Abstract:

对GaN基蓝光发光二极管(LED)分别施加-400,-800,-1 200,-1 500 V的反向人体模式静电打击,每次静电打击后,测量LED样品电学参数和光学参数的变化,从理论上分析了静电对LED可靠性的影响。实验发现:对GaN基蓝光LED进行人体模式下的静电打击后,其I-V特性曲线发生变形,光通量减小,老化时性能衰减的速率加快,这是由于受静电打击后在LED芯片内部产生了二次缺陷和熔融通道。对LED在不同温度下进行了I-V特性曲线的测量。实验结论认为未受静电打击的LED中浅能级离化占主导地位,受静电打击的LED中深能级离化占主导地位。静电引起的失效机理可以概述为二次缺陷和熔融通道的产生、深浅...

Keyword:

可靠性 LED 静电

Author Community:

  • [ 1 ] 北京工业大学北京光电子技术省部共建教育部重点实验室

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Source :

发光学报

Year: 2012

Issue: 10

Volume: 33

Page: 1132-1137

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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