发光学报2026，Vol.47Issue(2)：307-313,7.DOI:10.37188/CJL.20250229
具有超晶格电子减速层的氮极性InGaN基红光LED仿真研究
Simulation Study of N-polar InGaN-based Red LEDs with Superlattice Electron Deceleration Layer
摘要
Abstract
The low emission efficiency of InGaN-based red LEDs remains a critical bottleneck for realizing full-col-or nitride-based RGB Micro-LED displays.Enhancing carrier confinement and crystalline quality in the quantum well(QW)active region is essential to improving optical performance.Here,we propose an N-polar InGaN-based red LED featuring an n-In0.1Ga0.9N/GaN superlattice electron deceleration layer(EDL)while removing the conven-tional p-AlGaN electron blocking layer(EBL).Numerical simulations show that the superlattice EDL effectively reduces electron thermal velocity and increases electron capture efficiency within the QWs.Meanwhile,the design maintains a high electron confinement barrier and lowers the hole injection barrier,improving hole capture efficiency and suppressing electron overflow.Compared with a reference N-polar InGaN based red LED with a p-AlGaN EBL,the proposed device achieves a 16％increase in peak internal quantum efficiency and a 32％rise in optical output power.Furthermore,eliminating the p-AlGaN EBL avoids QW crystal degradation caused by high-temperature AlGaN growth,offering a promising route toward high-efficiency InGaN-based red Micro-LEDs.关键词
InGaN/红光LED/氮极性/电子减速层Key words
InGaN/red light-emitting diodes/nitrogen polarity/electron deceleration layer分类
信息技术与安全科学引用本文复制引用
王宗昊,王昱森,左长财,赵敬凯,高浩哲,刘宇亮,邓高强,杨天鹏,张源涛..具有超晶格电子减速层的氮极性InGaN基红光LED仿真研究[J].发光学报,2026,47(2):307-313,7.基金项目
国家科技重大专项(2025ZD0615800) （2025ZD0615800）
国家自然科学基金(U22A20134,U24A20300,62474080) （U22A20134,U24A20300,62474080）
吉林省科技发展计划项目(SKL202402002)Supported by Advanced Materials-National Science and Technology Major Project(2025ZD0615800) （SKL202402002）
National Natural Science Foundation of China(U22A20134,U24A20300,62474080) （U22A20134,U24A20300,62474080）
Science and Technology Development Plan Project of Jilin Prov-ince(SKL202402002) （SKL202402002）
