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对最后一个具有不同含量的InGaN/GaN量子井的载体捕获能力的模拟研究,用于发射黄色光的InGaN/GaN多个量子井

Wei Liu¹, Zeyu Liu¹, Hengyan Zhao¹

¹School of Microelectronics, Northwestern Polytechnical University, Xi'an 710072, China.

|September 28, 2023

概括

这项研究调查了发出黄色光的印化/化 (InGaN/GaN) 多个量子井 (MQW),该研究发现更高的In含量可以提高低电流的效率,但由于Auger重组和电子泄漏,导致高电流下降.

科学领域:

固态物理固态物理
材料科学材料科学材料科学
光电学是指光电子产品.

背景情况:

基于GaN的LED对于蓝色/绿色光是高效的,但与黄色光的效率相斗争.
在黄色的InGaN/GaN多个量子井 (MQWs) 中,低发光效率限制了设备的应用.
了解内容分发对于优化黄色光辐射至关重要.

研究的目的:

为了数值地研究黄色InGaN/GaN MQWs的电发光,其中的In含量不同.
揭示内容分发对载体动态和光辐射的影响背后的物理机制.
确定改善黄色MQW性能的策略.

主要方法:

在最终量子井中对具有不同In含量的InGaN/GaNMQW进行数值模拟.
在不同的注入电流条件下,电色的表征.
对载体捕获,重组 (辐射和奥格尔) 和电子泄漏的分析.

主要成果:

在低注入电流下,增加的In含量通过改善载体捕获和辐射再组合来提高发光效率.
在高注入电流下,更高的In含量会导致效率下降.
滴滴归因于高含量的MQW中Auger重组和电子泄漏的增加.

结论:

优化最终的InGaN量子井中的含量对于发射黄色光的设备至关重要.
通过增加含量可以提高低电流效率,但这加剧了高电流下垂.
进一步的研究应该集中在减轻有效的黄色InGaN/GaNMQWs的Auger重组和电子泄漏.

关键词:

在内容上,在内容上.捕获载体捕获载体的时间落效应落效应落效应最后一个InGaN量子井黄色的灯光黄色的灯光黄色的灯光

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