基于GaN的微型LED的最新进展
Youwei Zhang1, Ruiqiang Xu1, Qiushi Kang2
1Guangdong Provincial Key Laboratory of Information Photonics Technology, School of Physics and Opto-Electronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.
Micromachines
|May 27, 2023
概括
基于化 (GaN) 的微型发光二极管 (μLED) 提供了优势,但受到低外部量子效率 (EQE) 的损害. 本综述探讨了EQE差的原因,并讨论了GaN μLED的优化策略.
科学领域:
- 光电学是指光电子产品.
- 材料科学 材料科学 材料科学
- 半导体设备 半导体设备
背景情况:
- 基于化 (GaN) 的微型发光二极管 (μLED) 对显示器和可见光通信 (VLC) 是有前途的.
- 它们的小尺寸提供了诸如增强电流传播和减少自热等好处.
- 然而,低的外部量子效率 (EQE) 阻碍了它们的广泛应用.
研究的目的:
- 审查基于GaN的μLED低EQE背后的根本原因.
- 探索各种优化技术,旨在提高这些设备的EQE.
主要方法:
- 对GaN μLED研究的文献综述.
- 分析导致非辐射重组的因素.
- 研究量子局限斯塔克效应 (QCSE) 的影响.
主要成果:
- 非辐射重组和QCSE被确定为GaN μLED中劣质EQE的主要原因.
- 优化策略的重点是减轻这些效率损失机制.
- 改善EQE对于释放μLED技术的全部潜力至关重要.
结论:
- 解决非辐射重组和QCSE对于提高GaN μLED性能至关重要.
- 对优化技术的进一步研究将推动在新型应用中采用μLED.
- 增强的EQE将使卓越的显示和通信技术成为可能.
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