EXCITONS IN TYPE-II QUANTUM DOTS - FINITE OFFSETS

被引：71

作者：

LAHELD, UEH

PEDERSEN, FB

HEMMERS, PC

机构：

[1] Institutt for Fysikk, Norges Tekniske Hogskole

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.52.2697

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quantum size effects for an exciton attached to a spherical quantum dot are calculated by a variational approach. The band lineups are assumed to be type II with finite offsets V-e and V-h. The dependence of the exciton binding energy upon the dot radius R and the offsets is studied for different sets of electron and hole effective masses.

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页码：2697 / 2703

页数：7

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