Scattering rates due to electron-phonon interaction in CdS1-xSex quantum dots

被引：15

作者：

Alcalde, AM

Weber, G

机构：

[1] Univ Fed Sao Carlos, Dept Fis, BR-13560905 Sao Carlos, SP, Brazil

[2] Univ Sao Francisco, Ctr Ciencias Exatas & Tecnol, BR-13251900 Itaiba, SP, Brazil

来源：

SEMICONDUCTOR SCIENCE AND TECHNOLOGY | 2000年 / 15卷 / 11期

关键词：

D O I：

10.1088/0268-1242/15/11/312

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 calculate electron-LO-confined and surface phonon scattering rates in CdS1-xSex spherical quantum dots. The phonon modes are described in the frame of the two-mode dielectric continuum model, and the standard k . p formalism is used for treating the electronic band structure. We include the effects of inhomogeneous broadening due to statistical dot size distribution, which can create a wide channel of efficient relaxation. We demonstrate that changes in the concentration can generate variations of more than one order of magnitude in the relaxation rates.

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收藏

页码：1082 / 1086

页数：5

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