Revealing the surface electronic structures of AlGaN deep-ultraviolet multiple quantum wells with lateral polarity domains

doi:10.1364/PRJ.387700

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Revealing the surface electronic structures of AlGaN deep-ultraviolet multiple quantum wells with lateral polarity domains
	Guo, Wei ; Chen, Li ; Xu, Houqiang ; Qian, Yingda ; Sheikhi, Moheb ; Hoo, Jason ; Gu, Shiping ; Xu, Liang ; Liu, Jianzhe ; Alqatari, Feras
刊名	PHOTONICS RESEARCH
	2020
卷号	8 期号:6 页码:812-818
关键词	GAN BOUNDARIES INTERFACE KINETICS GROWTH
DOI	10.1364/PRJ.387700
英文摘要	We report on the carrier dynamic and electronic structure investigations on AlGaN-based deep-ultraviolet multiple quantum wells (MQWs) with lateral polarity domains. The localized potential maximum is predicted near the domain boundaries by first-principle calculation, suggesting carrier localization and efficient radiative recombination. More importantly, lateral band diagrams of the MQWs are proposed based on electron affinities and valance band levels calculated from ultraviolet (UV) photoelectron spectroscopy. The proposed lateral band diagram is further demonstrated by surface potential distribution collected by Kelvin probe microscopy and the density-of-state calculation of energy bands. This work illustrates that lateral polarity structures are playing essential roles in the electronic properties of III-nitride photonic devices and may provide novel perspective in the realization of high-efficiency UV emitters. (C) 2020 Chinese Laser Press
学科主题	Optics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20762]
专题	2020专题
作者单位	1.Ye, JC (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 2.Ye, JC (corresponding author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
推荐引用方式 GB/T 7714	Guo, Wei,Chen, Li,Xu, Houqiang,et al. Revealing the surface electronic structures of AlGaN deep-ultraviolet multiple quantum wells with lateral polarity domains[J]. PHOTONICS RESEARCH,2020,8(6):812-818.
APA	Guo, Wei.,Chen, Li.,Xu, Houqiang.,Qian, Yingda.,Sheikhi, Moheb.,...&Ye, Jichun.(2020).Revealing the surface electronic structures of AlGaN deep-ultraviolet multiple quantum wells with lateral polarity domains.PHOTONICS RESEARCH,8(6),812-818.
MLA	Guo, Wei,et al."Revealing the surface electronic structures of AlGaN deep-ultraviolet multiple quantum wells with lateral polarity domains".PHOTONICS RESEARCH 8.6(2020):812-818.