Improvement of carrier distribution in dual wavelength light-emitting diodes
Improvement of carrier distribution in dual wavelength light-emitting diodes作者机构:Research and Development Center for Semiconductor LightingInstitute of SemiconductorsChinese Academy of Sciences
出 版 物:《Journal of Semiconductors》 (半导体学报(英文版))
年 卷 期:2013年第34卷第5期
页 面:87-89页
核心收录:
学科分类:0808[工学-电气工程] 080901[工学-物理电子学] 0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学] 0803[工学-光学工程] 0702[理学-物理学]
基 金:supported by the National Natural Science Foundation of China(No.61274040)
主 题:LED dual wavelength quantum barrier holes injection carrier distribution
摘 要:The effect of different barriers between green and blue light regions in dual wavelength light emitting diodes was studied. Compared with a traditional sample, electroluminescence and photoluminescence spectra of the newly designed samples showed peak intensity improvements and smaller blue-shifts with increasing injection current level, and the bottom quantum-wells light emitting is enhanced. All these phenomena can be ascribed to reduced barrier thickness and indium doping in the quantum-barrier influencing electric fields and more holes injecting into the bottom QWs.