Ordered quantum dots formation on engineered template by molecular beam epitaxy

被引:4
作者
Suraprapapich, S [1 ]
Kanjanachuchai, S [1 ]
Thainoi, S [1 ]
Panyakeow, S [1 ]
机构
[1] Chulalongkorn Univ, Fac Engn, Dept Elect Engn, Semicond Device Res Lab, Bangkok 10330, Thailand
关键词
ordered InAs quantum dots; engineered template; molecular beam epitaxy;
D O I
10.1016/j.mee.2004.12.046
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We have achieved partial ordering of InAs quantum dots (QDs) grown on a flat GaAs (0 0 1) substrate. Although the growth of the first QD layer results in random distribution of QDs, subsequent processes that involve multiple cycles of capping, regrowth and annealing have turned the flat substrate into a template with stripes in the [1 1 0] direction. Regrowth on the engineered template results in chains of relatively uniform InAs QDs connected in series. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:349 / 352
页数:4
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