Size-dependent exciton energy of narrow band gap colloidal quantum dots in the finite depth square-well effective mass approximation

被引：48

作者：

Baskoutas, S ^{[1
]}

Terzis, AF

Schommers, W

机构：

[1] Univ Patras, Dept Mat Sci, Patras 26504, Greece

[2] Univ Patras, Dept Phys, Patras 26504, Greece

[3] Forschungszentrum Karlsruhe, Inst Wissensch Rechnen, D-76021 Karlsruhe, Germany

来源：

JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE | 2006年 / 3卷 / 02期

关键词：

narrow band gap semiconductors; excitons; quantum dots; effective mass approximation;

D O I：

10.1166/jctn.2006.3008

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using the potential morphing method within the finite depth square-well effective mass approximation, we calculate the exciton energy of narrow band gap colloidal PbS, PbSe, and InAs quantum dots, assuming a size dependent dielectric function. Concerning the behaviour of the effective band gap with the quantum dot radius, our theoretical results agree well with the experimental ones, in contrast with other theoretical models.

引用

页码：269 / 271

页数：3

共 28 条

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Ashcroft N. W., 1976, SOLID STATE PHYS

[2] Size-dependent band gap of colloidal quantum dots [J].