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THE BINDING-ENERGY OF AN EXCITON IN TYPE-II QUANTUM-WELLS WITH A DIELECTRIC MISMATCH
GAO, EZ; GU, SW
Corresponding AuthorGAO, EZ()
1993
Source PublicationCOMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
Volume20Issue:2Pages:141-146
AbstractFrom 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.
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:A1993MJ05300003
PublisherHUAZHONG UNIV SCI TECH PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/126530
Collection中国科学院金属研究所
Corresponding AuthorGAO, EZ
Affiliation1.CHINESE ACAD SCI,INT CTR MAT PHYS,BEIJING,PEOPLES R CHINA
2.JIAO TONG UNIV,INST CONDENSED MATTER PHYS,SHANGHAI 200030,PEOPLES R CHINA
Recommended Citation
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.
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