Electron-phonon interaction in CdS/ZnS quantum dot

被引：4

作者：

Triki, M

Jaziri, S ^{[1
]}

机构：

[1] Fac Sci Bizerte, Dept Phys, Bizerte 7021, Tunisia

[2] Fac Sci Tunis, Phys Mat Condensee Lab, Tunis 1060, Tunisia

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2005年 / 37卷 / 06期

关键词：

quantum dot; longitudinal optical and surface optical phonons;

D O I：

10.1016/j.spmi.2004.11.002

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Electron-phonon effects on the two first electronic states in both CdS and GaAs quantum dots are investigated. Both confined longitudinal optical (LO) and surface optical (SO) phonons are considered. We use the intermediate-type variational approach. We find that, shifts caused by phonon contribution on electronic energies are more significant for US quantum dot. We find, also, that, contrary to GaAs based quantum dots, we shouldn't neglect the SO phonon contribution for CdS based ones, especially for small dots. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：365 / 372

页数：8

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