Band gap prediction for composition-tunable alloyed semiconductor nanocrystals

被引：7

作者：

Gao, Lihua ^{[1
]}

Gao, Faming ^{[1
]}

机构：

[1] Yanshan Univ, Dept Appl Chem, Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 05期

基金：

中国国家自然科学基金;

关键词：

ZNXCD1-XSE NANOCRYSTALS; ENERGY-GAP; SIZE; LUMINESCENCE; ZNS;

D O I：

10.1063/1.4816972

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Size and composition-dependences of band gap energies are important properties for nanocrystal semiconductors, and have attracted extensive attentions for the last two decades. In this letter, a simple method of band gap prediction for nanocrystal alloys is developed. The band gaps of II-VI semiconductor homogeneous alloys with zinc blende and wurtzite structure, such as zb-(ZnS)(x)(CdS)(1-x), zb-(CdS)(x)(CdSe)(1-x), zb-(ZnSe)(x)(CdSe)(1-x), w-(ZnS)(x)(CdS)(1-x), w-(ZnSe)(x)(CdSe)(1-x), and w-(CdSe)(x)(CdTe)(1-x) nanocrystal alloys, are calculated. The calculated results are in good agreement with the available experimental data. It provides insights into the effects of structure, size, and composition on the band gap. (C) 2013 AIP Publishing LLC.

引用

页数：4

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