Improvement of blue light-emitting diodes with an undoped graded layer as the electrons tunneling barrier layer

Wu Tian,Weiyi Yan,Hui Xiong,Yanyan Ding,Yang Li,Li Senlin,Jin Zhang,Shengchang Chen,Hu Wang,Yu Tian,Jiangnan Dai,Yanyan Fang,Zhihao Wu,Changqing Chen

International Photonics and Optoelectronics Meetings (2012), paper ITh4A.20（2012）

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摘要

The advantages of blue light-emitting diodes with an undoped AlxGa1-xN graded layer are studied numerically. The simulation results show that the structure with a AlGaN graded layer has better performance over the common one.

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关键词

electrons tunneling barrier layer,llight-ight-ight-eeemitting

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