The Simulation of AlGaInP LED's Light Output Efficiency

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The Simulation of AlGaInP LED's Light Output Efficiency

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- The Simulation of AlGaInP LED's Light Output Efficiency
- Chinese Journal of Luminescence Vol. 30, Issue 2, Pages: 201-208(2009)
- 作者机构：
  
  1. 扬州大学物理科学与技术学院
  2. 扬州华夏集成光电有限公司
- 作者简介：
  
  [ "" ]
- 基金信息：
- DOI：
  CLC： TN312.8
- Received：14 October 2008，
  
  Revised：02 January 1900，
  
  Published Online：30 April 2009，
  
  Published：30 April 2009
- 稿件说明：
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The Simulation of AlGaInP LED's Light Output Efficiency[J]. Chinese journal of luminescence, 2009, 30(2): 201-208.
DOI：

The Simulation of AlGaInP LED's Light Output Efficiency[J]. Chinese journal of luminescence, 2009, 30(2): 201-208. DOI：

摘要

采用有限元法来模拟研究采用透明电极AlGaInP LED出光效率的影响因素和分布情况

并在此基础上对不透明电极进行优化以提高芯片的出光效率。研究发现

随着窗口层厚度的增加

顶面出光效率有所下降

侧面出光效率大大提高

总出光效率呈上升趋势

且总出光效率的最高分布区从芯片的四个直角区域向中央圆形电极边缘靠近。然而

随着芯片尺寸的增加

其变化趋势正好与之相反。在此基础上进一步对普通生产芯片进行模拟分析

得知其光提取效率最高区主要分布在芯片的四个直角区域

并以此为指导进行不透明电极形状的优化

进而对其条形电极的宽度进行优化

可使所获得的出光效率比传统圆形电极提高了62.85％

能够为实际生产提供一定的理论指导。

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references

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