吉林大学学报（信息科学版）2023，Vol.41Issue(5)：767-772,6.
氮极性AlGaN基隧道结深紫外LED
Nitrogen-Polar AlGaN-Based Tunnel Junction Deep Ultraviolet LEDs
摘要
Abstract
Aiming at the problems of low luminous efficiency and large working bias of AlGaN-based deep-UV(Ultraviolet)LEDs(Light Emitting Diodes),a nitrogen-polar AlGaN-based deep-UV LED device structure with n+-GaN/Al0.4Ga0.6N/p+-GaN tunnel junction is designed.The LED structure is consist of an electron supplying layer n-Al0.65 Ga0.35 N,a multiple quantum wells of Al0.65 Ga0.35 N/Al0.5 Ga0.5 N,a compositionally graded p-AlxGa1-xN,and a n+-GaN/Al0.4Ga0.6N/p+-GaN tunnel junction.The simulation results show that the tunnel junction LED has higher internal quantum efficiency and light output power,and it has a lower turn-on voltage than the reference LED without tunnel junction.The improvement of the optoelectronic characteristics of the tunnel junction LED is attributed to the introduction of the tunnel junction improving the hole injection efficiency of the LED,and improving the current spreading capability of the LED device.The results of this work show that the simulation of carrier transport and optoelectronic characteristics of semiconductor devices through simulation software is helpful deepening the understanding of the physical characteristics of semiconductor devices.If the study of semiconductor device simulation software is added to the learning process of"semiconductor device physics",it will help the cultivation of talents in the semiconductor field.关键词
深紫外LED/隧道结/铝镓氮/氮化物半导体Key words
deep ultraviolet light emitting diodes(LED)/tunnel junction/aluminum gallium nitride(AlGaN)/nitride semiconductor分类
信息技术与安全科学引用本文复制引用
张源涛,邓高强,孙瑜..氮极性AlGaN基隧道结深紫外LED[J].吉林大学学报（信息科学版）,2023,41(5):767-772,6.基金项目
国家自然科学基金资助项目(62104078 （）
U22A20134 （）
62074069) （）
国家重点研发计划基金资助项目(2021YFB3601000 （）
2021YFB3601002 （）
2022YFB3605205) （）
吉林大学研究生教育教学改革研究基金资助项目(2021JGZ32) （2021JGZ32）
吉林大学本科教学改革研究基金资助项目(2021XYB112) （2021XYB112）
2023年度吉林省高等教育教学改革立项课题基金资助项目(JLJY202306574720) （JLJY202306574720）
吉林省科技发展计划基金资助项目(20200801013GH （）
20220201065GX) （）
