Dramatically enhanced self-assembly of GeSi quantum dots with superior photoluminescence induced by the substrate misorientation

A dramatically enhanced self-assembly of GeSi quantum dots (QDs) is disclosed on slightly miscut Si (001) substrates, leading to extremely dense QDs and even a growth mode transition. The inherent mechanism is addressed in combination of the thermodynamics and the growth kinetics both affected by st...

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Bibliographic Details
Main Authors: Tong Zhou, Zhenyang Zhong
Format: Article
Language:English
Published: AIP Publishing LLC 2014-02-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4866356