p -电极面积比对显示和通信用微型发光二极管性能的影响

IF 4.1 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Electron Device Letters Pub Date : 2025-02-07 DOI:10.1109/LED.2025.3539655

Shi-Biao Liu;Ming-He Wan;Wen-An Guo;You-Cai Deng;Guo-Long Chen;Mai-Jia Lin;Hao-Chung Kuo;Yi-Jun Lu;You-Qin Lin;Zhong Chen;Ting-Zhu Wu

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引用次数: 0

摘要

在这封信中，芯片尺寸为27美元的绿色微型led；制作和表征了不同的p电极面积比（20%,30%，40%和50%），以确定显示和通信的最佳p电极面积比。结果表明，增加p -电极面积比可以改善微型led电流分布的均匀性。然而，它也会造成严重的金属光线遮挡。显示用微型led的最佳p电极面积比为30%，可获得最佳的外量子效率（EQE）和光输出功率（LOP）。通信用微型led的最佳p电极面积比为50%，可显著改善归一化频率响应和-3 dB带宽。根据不同的应用选择合适的p电极面积比对于微型led至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effects of the P-Electrode Area Ratio on the Performance of Micro Light-Emitting Diodes for Display and Communication

In this letter, green micro-LEDs with a chip size of

$27 \; \mu $

m and different P-electrode area ratios (20%, 30%, 40%, and 50%) were fabricated and characterized to determine the optimal P-electrode area ratio for display and communication. The results showed that increasing the P-electrode area ratio improved the uniformity in the current distribution of the micro-LED. However, it can also cause significant metal light-blocking. The optimal P-electrode area ratio of the micro-LED for displays was 30%, yielding optimal external quantum efficiency (EQE) and light output power (LOP). The optimal P-electrode area ratio of the micro-LED for communication was 50%, resulting in a marked improvement in the normalized frequency response and -3 dB bandwidth. It is crucial to select the appropriate P-electrode area ratio for the micro-LED depending on the applications.

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来源期刊

IEEE Electron Device Letters 工程技术-工程：电子与电气

CiteScore

8.20

自引率

10.20%

发文量

551

审稿时长

1.4 months

期刊介绍： IEEE Electron Device Letters publishes original and significant contributions relating to the theory, modeling, design, performance and reliability of electron and ion integrated circuit devices and interconnects, involving insulators, metals, organic materials, micro-plasmas, semiconductors, quantum-effect structures, vacuum devices, and emerging materials with applications in bioelectronics, biomedical electronics, computation, communications, displays, microelectromechanics, imaging, micro-actuators, nanoelectronics, optoelectronics, photovoltaics, power ICs and micro-sensors.