Improved Performance of GaN-Based Light-Emitting Diodes via AlInGaN/InGaN Electron-Emitting Layer

Improved Performance of GaN-Based Light-Emitting Diodes via AlInGaN/InGaN Electron-Emitting Layer
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通过 AlInGaN/InGaN 电子发射层提高 GaN 基发光二极管的性能

DOI:
10.1143/apex.5.112101
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发表时间:
2012-10
影响因子:
2.3
通讯作者:
Fang, Yanyan
Fang, Yanyan
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Zhang, Jianbao;Chen, Changqing;Wu, Zhihao;Li, Yang;Xu, Jin;Zhang, Wei;Xiong, Hui;Tian, Yu;Dai, Jiangnan;Fang, Yanyan

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使用 AlInGaN/InGaN 多量子阱 (MQW) 作为插入有源 MQW 区域和 n-GaN 包覆层之间的电子发射层,GaN 基发光二极管 (LED) 的性能得到了改善。与传统电子发射层的GaN/InGaN MQW相比,在保持几乎相同的正向电压的同时,光输出功率可进一步增强约20%。随着注入电流的增加,具有AlInGaN/InGaN MQW电子发射层的LED的外量子效率表现出较小的效率下降。此外,具有AlInGaN/InGaN MQW电子发射层的LED的负静电放电耐受电压明显更高。
Improved performance of GaN-based light-emitting diodes (LEDs) using AlInGaN/InGaN multiple quantum wells (MQWs) as an electron-emitting layer inserted between the active MQW region and n-GaN cladding layer has been demonstrated. Compared with the conventional electron-emitting layer of GaN/InGaN MQWs, the light output power can be further enhanced by about 20%, while maintaining almost the same forward voltage. As the injection current increases, the external quantum efficiency of LEDs with the AlInGaN/InGaN MQW electron emitting layer exhibits a smaller efficiency droop. In addition, the negative electrostatic discharge endurance voltage of LEDs with the AlInGaN/InGaN MQW electron emitting layer is significantly higher.
DOI: 10.1364/cleo_at.2012.jw3l.2
发表时间: 2011-12
期刊: 2012 Conference on Lasers and Electro-Optics (CLEO)
影响因子: --
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