Exchange interaction effects on excitons and biexcitons in single CdTe quantum dots

被引：0
|
作者：
Besombes, L [1 ]
Kheng, K [1 ]
Marsal, L [1 ]
Mariette, H [1 ]
机构：
[1] CEA Grenoble, Dept Rech Fondamentale Mat Condensee SP2M, F-38054 Grenoble 9, France
来源：
PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II | 2001年 / 87卷
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D O I：
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We report a study of excitons and biexcitons confined in single CdTe/ZnTe quantum dots. From magnetophotoluminescence experiments we obtain the complete fine structure (Exchange and Zeeman splitting) of excitons and biexcitons confined in quantum dots with reduced symmetry. The biexciton-exciton transition reproduces all the fine structure of the exciton. The valence band mixing induced by the asymmetry of the confining potential leads to a linear polarization anisotropy of the exciton and biexciton luminescence. The influence of quantum confinement on the exciton singlet-triplet splitting and biexciton binding energy is discussed.
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页码：1151 / 1152
页数：2
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