QQ客服 官方微博 反馈留言

	Theoretical investigation of intersubband transition in alxga1-xn/gan/alyga1-yn step quantum well
	Li, JM; Lu, YW; Han, XX; Wu, JJ; Liu, XL; Zhu, QS; Wang, ZG
刊名	Physica e-low-dimensional systems & nanostructures
	2005-09-01
卷号	28期号:4页码:453-461
关键词	Quantum wells Semiconductors Intersubband transitions
ISSN号	1386-9477
DOI	10.1016/j.physe.2005.05.057
通讯作者	Li, jm(jiemli@red.semi.ac.cn)
英文摘要	A modified self-consistent method is introduced for the design of alxga1-xn/gan step quantum well (sqw) with the position and energy-dependent effective mass. the effects of nonparabolicity are included. it is shown that the nonparabolicity effect is minute for the lowest subband energy level and grows in size for the higher subband states. the effects of nonparabolicity have significant influence on the transition energies and the oscillator strengths and should be taken into account in the investigation of the optical transitions. the strong asymmetric property introduced by the step quantum well magnifies the weak intersubband transition from the ground state to the third state (1 -> 3). it is shown that in an appropriate scope, the intersubband transition (1 -> 3) has the comparable oscillator strength with transition from the ground state to the second one (1 -> 2), which suggests the possible application of the two-color photodetectors. the results of this work should provide useful guidance for the design of optically pumped asymmetric quantum well lasers and quantum well infrared photodetectors (qwips). (c) 2005 elsevier b.v. all rights reserved.
WOS关键词	RAY PHOTOEMISSION SPECTROSCOPY ; PIEZOELECTRIC POLARIZATION ; MU-M ; NONPARABOLICITY ; ABSORPTION ; ALGAN/GAN ; GAN ; DEVICES ; DESIGN ; RANGE
WOS研究方向	Science & Technology - Other Topics ; Physics
WOS类目	Nanoscience & Nanotechnology ; Physics, Condensed Matter
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000232038500017
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2426508
专题	半导体研究所
通讯作者	Li, JM
作者单位	1.Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China 2.Beijing Jiaotong Univ, Dept Phys, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Li, JM,Lu, YW,Han, XX,et al. Theoretical investigation of intersubband transition in alxga1-xn/gan/alyga1-yn step quantum well[J]. Physica e-low-dimensional systems & nanostructures,2005,28(4):453-461.
APA	Li, JM.,Lu, YW.,Han, XX.,Wu, JJ.,Liu, XL.,...&Wang, ZG.(2005).Theoretical investigation of intersubband transition in alxga1-xn/gan/alyga1-yn step quantum well.Physica e-low-dimensional systems & nanostructures,28(4),453-461.
MLA	Li, JM,et al."Theoretical investigation of intersubband transition in alxga1-xn/gan/alyga1-yn step quantum well".Physica e-low-dimensional systems & nanostructures 28.4(2005):453-461.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。