Energy spectrum and oscillator strengths for spherical, conical and cylindrical CdSe quantum dots

被引：8

作者：

Bochorishvili, Beka ^{[1
]}

Polatoglou, Hariton M. ^{[1
]}

机构：

[1] Aristotle Univ Thessaloniki, Dept Phys, GR-54124 Thessaloniki, Greece

来源：

SEMICONDUCTOR NANOSTRUCTURES TOWARDS ELECTRONIC AND OPTOELECTRONIC DEVICE APPLICATIONS II (SYMPOSIUM K, E-MRS 2009 SPRING MEETING) | 2009年 / 6卷

关键词：

FINITE-ELEMENT; SCATTERING; GAP;

D O I：

10.1088/1757-899X/6/1/012026

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 theoretically explore spherical, cylindrical and conical CdSe quantum dots (QDs) embedded in ZnSe. The electronic states close to the fundamental gap are of specific interest and depend on the details of the structures. Therefore, there is a need to have a very flexible method to study QDs of different shapes and sizes. To solve the Schrodinger equation in the envelope function approximation, we employ the Finite Element Method (FEM). This is a very convenient method, and can be used to study QDs of any geometry and size. We have also implemented a procedure to calculate the oscillator strengths of the inter-band transitions and in this work we report on the electronic states and the optical transitions. Systematic comparisons are made between the studied QDs as well as comparison with experimental and other calculated findings.

引用

页数：5

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