摘要
考虑六方格子衬底上的沉积粒子扩散过程,本文利用Monte Carlo方法对自组织生长岛的面密度进行了研究。模拟得到了岛的生长形貌图,结果表明生长的岛数与扩散步数成反比且存在最大23%岛覆盖率,由岛的覆盖率可估算量子点分布的最大面密度.
The studies of the island area density on the six-lattices substrate by using Monte Carlo method are reported in this paper. The model based on the adatoms diffusion process has been obtained in the simulation for the growth of self-organized islands. The results show that the islands coverage has the maximum growth area coverage of 23%.The maximal theoretical area density of quantum dots can be estimated theoretically according to the coverage.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2007年第5期1000-1004,共5页
Journal of Synthetic Crystals
基金
Project supported by the National Natural Science Foundation of China (No.60567001)
the Science Foundation of Education Department of Yunnan Province (04Y659A)
Cultivated Foundation for "Academic Cadreman" of Yunnan University
关键词
岛
量子点
扩散
面密度
蒙特卡罗方法
islands
quantum dots
diffusion
coverage area density
Monte Carlo method
