Kinetic Monte Carlo simulations of three-dimensional self-assembled quantum dot islands

被引：0

作者：

宋鑫 ^{[1
]}

冯昊 ^{[1
]}

刘玉敏 ^{[1
]}

俞重远 ^{[1
]}

尹昊智 ^{[1
]}

机构：

[1] State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications

来源：

Chinese Physics B | 2014年 / 01期

基金：

中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;

关键词：

Monte Carlo simulations; self-assembled quantum dot islands; growth parameters;

D O I：

暂无

中图分类号：

O413 [量子论];

学科分类号：

070201 ;

摘要：

By three-dimensional kinetic Monte Carlo simulations, the effects of the temperature, the flux rate, the total coverage and the interruption time on the distribution and the number of self-assembled InAs/GaAs(001) quantum dot(QD) islands are studied, which shows that a higher temperature, a lower flux rate and a longer growth time correspond to a better island distribution. The relations between the number of islands and the temperature and the flux rate are also successfully simulated. It is observed that for the total coverage lower than 0.5 ML, the number of islands decreases with the temperature increasing and other growth parameters fixed and the number of islands increases with the flux rate increasing when the deposition is lower than 0.6 ML and the other parameters are fixed.

引用

页码：334 / 339

页数：6

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