Effect of strain and quantum confinement on the electronic and optical properties in CdTe/ZnTe core/shell QDs

被引：0
|
作者：
Zhang Wei [1 ]
Fei Xuening [1 ]
Wei Xiaoyin [1 ]
Dong Erming [1 ]
Tang Hao [1 ]
Jia Guozhi [1 ]
机构：
[1] Tianjin Chengjian Univ, Tianjin, Peoples R China
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2015年 / 9卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
Core/shell; Quantum dots; Strain effect; CdTe/ZnTe; NANOCRYSTALS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electronic structures of CdTe/ZnTe core/shell structure quantum dots (QDs) has been investigated using the single-band effective mass approximationand first-order perturbation approximation theory. The electronic structure of CdTe/ZnTe QDs is a typical type-II band structure, andthe electron and hole carries would be localized in the core and shell regions respectively. The overlap integral of wave function of them and bandgap energy vary with the changing of core radius and/or shell thickness due to quantum confinement effect. The electronic and optical properties could be tuned by varying the size of QDs.
引用
收藏
页码：367 / 371
页数：5
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