THE BINDING-ENERGY OF AN EXCITON IN TYPE-II QUANTUM-WELLS WITH A DIELECTRIC MISMATCH

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	THE BINDING-ENERGY OF AN EXCITON IN TYPE-II QUANTUM-WELLS WITH A DIELECTRIC MISMATCH
	GAO, EZ ; GU, SW
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	1993
卷号	20 期号:2 页码:141-146
ISSN号	0253-6102
通讯作者	GAO, EZ()
英文摘要	From a general viewpoint, the binding energy of the excitons in type-II hetero-quantum-wells with the presence of a dielectric mismatch is discussed by making use of image potentials, variational method and infinite-potential-barrier model. The calculation is performed for various parameters including the electron-hole mass ratio sigma, dielectric constant ratio delta and well width d. A static Gabovish-type potential is engaged to describe the image potential inside the well. It is found that the image potential may play an important role in the formation of the excitons. The contribution of image potentials to the binding energy is compared with binding energy for two kinds of type-II hetero-QWs, GaSb-InAs-GaSb and AlAs-GaAs-AlAs. In these two cases, the image potentials are above 10% of the corresponding binding energies.
WOS研究方向	Physics
语种	英语
出版者	HUAZHONG UNIV SCI TECH PRESS
WOS记录号	WOS:A1993MJ05300003
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/126532]
专题	金属研究所_中国科学院金属研究所
通讯作者	GAO, EZ
作者单位	1.CHINESE ACAD SCI,INT CTR MAT PHYS,BEIJING,PEOPLES R CHINA 2.JIAO TONG UNIV,INST CONDENSED MATTER PHYS,SHANGHAI 200030,PEOPLES R CHINA
推荐引用方式 GB/T 7714	GAO, EZ,GU, SW. THE BINDING-ENERGY OF AN EXCITON IN TYPE-II QUANTUM-WELLS WITH A DIELECTRIC MISMATCH[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1993,20(2):141-146.
APA	GAO, EZ,&GU, SW.(1993).THE BINDING-ENERGY OF AN EXCITON IN TYPE-II QUANTUM-WELLS WITH A DIELECTRIC MISMATCH.COMMUNICATIONS IN THEORETICAL PHYSICS,20(2),141-146.
MLA	GAO, EZ,et al."THE BINDING-ENERGY OF AN EXCITON IN TYPE-II QUANTUM-WELLS WITH A DIELECTRIC MISMATCH".COMMUNICATIONS IN THEORETICAL PHYSICS 20.2(1993):141-146.