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Influence of air pollutants on the lifetime of LEDs and analysis of degradation effects

机译:空气污染物对LED寿命的影响以及降级效果分析

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摘要

Compared to traditional light sources light emitting diodes (LEDs) provide an increased efficiency and long lifetime, making them the primary choice for many applications. However, these lifetimes are highly dependent on operational conditions like junction temperature, drive current and environmental conditions like the exposure to humidity or air pollutants. This work studies the effects of common air pollutants in different concentrations on the lifetime of commercial LEDs with different packages andanalyses the observed degradation mechanisms on the AlGaInN LED chips, the metallization and the package components. A special focus is put on the effects of hydrogen sulfide. (C) 2017 Elsevier Ltd. All rights reserved.
机译:与传统光源相比,发光二极管(LED)具有更高的效率和更长的使用寿命,使其成为许多应用的主要选择。但是,这些寿命在很大程度上取决于工作条件,例如结温,驱动电流和环境条件,例如暴露于湿气或空气污染物。这项工作研究了不同浓度的常见空气污染物对具有不同封装的商用LED寿命的影响,并分析了在AlGaInN LED芯片,金属化和封装组件上观察到的降解机理。特别关注硫化氢的作用。 (C)2017 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Microelectronics & Reliability》 |2017年第9期|566-570|共5页
  • 作者单位

    Fraunhofer Inst Appl Solid State Phys, Freiburg, Germany;

    Fraunhofer Inst Appl Solid State Phys, Freiburg, Germany;

    Fraunhofer Inst Appl Solid State Phys, Freiburg, Germany;

    Fraunhofer Inst Appl Solid State Phys, Freiburg, Germany;

    Fraunhofer Inst Appl Solid State Phys, Freiburg, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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