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对具有单个量子井的InGaN红色微LED高性能进行研究,用于可见光通信应用

Fu-He Hsiao^1,2, Tzu-Yi Lee³, Wen-Chien Miao^1,2

¹Semiconductor Research Center, Hon Hai Research Institute, Taipei, 11492, Taiwan.

|July 27, 2023

概括

单量子井 (SQW) 印化 (InGaN) 红色微型发光二极管 (微型LED) 显示了可见光通信的增强性能. 与双量子井设备相比,这些SQW微LED提供了更高的效率和数据传输速率.

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:

可见光通信 (VLC) 需要高效和高性能的微型发光二极管 (微型LED).
基于酸 (InGaN) 的红色微型LED对于全彩显示器和VLC系统至关重要.
优化量子井结构是提高红色微型LED性能的关键.

研究的目的:

评估用于VLC应用的基于InGaN的单量子井 (SQW) 红色微LED的潜力.
为了比较SQW红色微LED与双量子井 (DQW) 结构的性能.

主要方法:

使用SQW和DQW结构的InGaN红色微LED的制造和表征.
分析晶体质量,辐射纯度,光谱特性 (FWHM) 和内部量子效率 (IQE).
测量外部量子效率 (EQE),电流密度依赖的蓝移,调制带宽和数据传输速率.

主要成果:

与DQW相比,SQW样本显示出更优质的晶体质量,高纯度的辐射,更窄的FWHM和更高的IQE.
在SQW红色微LED实现了更高的最大EQE5.95%,在不断增加的电流密度下降了蓝变移.
该SQW设备展示了424MHz的优异调制带宽,使数据传输速率达到800Mbit/s.

结论:

基于InGaN的SQW红色微LED提供了比DQW结构显著提高的性能.
这些SQW设备对先进的全彩微型显示器和可见光通信应用非常有前途.
提高效率和高速调制能力使SQW红色微LED成为下一代光通信的可行技术.

关键词:

这是一个微型LED.红色基于InGaN的LED是红色的可见光通信可见光通信

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