Multi-Color Emission in Quantum-Dot-Quantum-Well Semiconductor Heteronanocrystals

被引：16
作者：
Kostic, R. [1 ]
Stojanovic, D. [1 ]
机构：
[1] Univ Belgrade, Inst Phys, Ctr Solid State Phys & New Mat, POB 68, Belgrade 11080, Serbia
来源：
ACTA PHYSICA POLONICA A | 2009年 / 116卷 / 04期
关键词：
NANOCRYSTALS; CDSE;
D O I：
10.12693/APhysPolA.116.598
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present calculation results of multi-color spontaneous emission from quantum-dot-quantum-well semiconductor heteronanocrystals. Our theoretical results explain experimental results of onion-like spherical system similar to: CdSe (core), ZnS (shell), CdSe (shell) spherical quantum dots surrounded by ZnS. We demonstrate influence of shell thickness to exciton localization in distinct layers of heteronanocrystals. Multi-color emission of such heterosystem is determined by l = 0, n = 1 state localization in CdSe core and by l = 0, n = 2 state localization in CdSe shell.
引用
收藏
页码：598 / 602
页数：5
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