电极结构对AlGaInP-LED阵列电流分布的影响

尹悦; 梁静秋; 梁中翥; 王维彪

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电极结构对AlGaInP-LED阵列电流分布的影响

器件制备及器件物理 | 更新时间：2020-08-12

- 电极结构对AlGaInP-LED阵列电流分布的影响
- Effects of Electrode Structure on The Current Distribution of AlGaInP-LED Array
- 发光学报 2011年32卷第10期页码：1051-1056
- 作者机构：
  
  1. 中国科学院研究生院
  2. 中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室
- 作者简介：
- 基金信息：
  
  吉林省科技发展项目(20100351)资助项目()
- DOI：
  中图分类号： TN312.8
- 收稿：2011-06-20，
  
  修回：2011-7-13，
  
  网络首发：2011-10-22，
  
  纸质出版：2011-10-22
- 稿件说明：
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尹悦, 梁静秋, 梁中翥, 王维彪. 电极结构对AlGaInP-LED阵列电流分布的影响[J]. 发光学报, 2011,32(10): 1051-1056

YIN Yue, LIANG Jing-qiu, LIANG Zhong-zhu, WANG Wei-biao. Effects of Electrode Structure on The Current Distribution of AlGaInP-LED Array[J]. Chinese Journal of Luminescence, 2011,32(10): 1051-1056
尹悦, 梁静秋, 梁中翥, 王维彪. 电极结构对AlGaInP-LED阵列电流分布的影响[J]. 发光学报, 2011,32(10): 1051-1056 DOI：

YIN Yue, LIANG Jing-qiu, LIANG Zhong-zhu, WANG Wei-biao. Effects of Electrode Structure on The Current Distribution of AlGaInP-LED Array[J]. Chinese Journal of Luminescence, 2011,32(10): 1051-1056 DOI：

摘要

以AlGaInP-LED外延片为基片

设计了分辨率为320×240、像素尺寸为100 μm×100 μm的微型LED阵列。针对目前LED阵列普遍存在的电流分布不均匀的问题

建立了内部电流分布模型

研究了电极结构、电极尺寸及电极间距等不同因素对LED电流分布造成的影响。在单条形电极结构的基础上进行优化

综合考虑不透明电极的遮光效应等因素得到三条形电极结构为最优的电极结构

该电极结构的LED有源层均匀发光面积比未经优化的单条形电极提高了65.02%

比双条形电极提高25.63%

有效提高了微型LED阵列的出光效率

对改善LED芯片发光均匀性具有参考意义。

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references

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