Effect of Interfacial Bonds on the Morphology of InAs QDs Grown on GaAs (311) B and (100) Substrates

<p>Abstract</p> <p>The morphology and transition thickness (<it>t</it> <sub>c</sub>) for InAs quantum dots (QDs) grown on GaAs (311) B and (100) substrates were investigated. The morphology varies with the composition of buffer layer and substrate orientatio...

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Main Authors: Wang Lu, Li Meicheng, Xiong Min, Zhao Liancheng
Format: Article
Language:English
Published: SpringerOpen 2009-01-01
Series:Nanoscale Research Letters
Subjects:
Online Access:http://dx.doi.org/10.1007/s11671-009-9304-z
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author Wang Lu
Li Meicheng
Xiong Min
Zhao Liancheng
author_facet Wang Lu
Li Meicheng
Xiong Min
Zhao Liancheng
author_sort Wang Lu
collection DOAJ
description <p>Abstract</p> <p>The morphology and transition thickness (<it>t</it> <sub>c</sub>) for InAs quantum dots (QDs) grown on GaAs (311) B and (100) substrates were investigated. The morphology varies with the composition of buffer layer and substrate orientation. And<it>t</it> <sub>c</sub>decreased when the thin InGaAs was used as a buffer layer instead of the GaAs layer on (311) B substrates. For InAs/(In)GaAs QDs grown on high miller index surfaces, both the morphology and<it>t</it> <sub>c</sub>can be influenced by the interfacial bonds configuration. This indicates that buffer layer design with appropriate interfacial bonds provides an approach to adjust the morphologies of QDs grown on high miller surfaces.</p>
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spelling doaj.art-77c258e5176748449f196d39a4c4be7b2023-09-02T23:16:36ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2009-01-0147689693Effect of Interfacial Bonds on the Morphology of InAs QDs Grown on GaAs (311) B and (100) SubstratesWang LuLi MeichengXiong MinZhao Liancheng<p>Abstract</p> <p>The morphology and transition thickness (<it>t</it> <sub>c</sub>) for InAs quantum dots (QDs) grown on GaAs (311) B and (100) substrates were investigated. The morphology varies with the composition of buffer layer and substrate orientation. And<it>t</it> <sub>c</sub>decreased when the thin InGaAs was used as a buffer layer instead of the GaAs layer on (311) B substrates. For InAs/(In)GaAs QDs grown on high miller index surfaces, both the morphology and<it>t</it> <sub>c</sub>can be influenced by the interfacial bonds configuration. This indicates that buffer layer design with appropriate interfacial bonds provides an approach to adjust the morphologies of QDs grown on high miller surfaces.</p>http://dx.doi.org/10.1007/s11671-009-9304-zInAsTransition thicknessHigh miller indexStrainInterfacial bonds
spellingShingle Wang Lu
Li Meicheng
Xiong Min
Zhao Liancheng
Effect of Interfacial Bonds on the Morphology of InAs QDs Grown on GaAs (311) B and (100) Substrates
Nanoscale Research Letters
InAs
Transition thickness
High miller index
Strain
Interfacial bonds
title Effect of Interfacial Bonds on the Morphology of InAs QDs Grown on GaAs (311) B and (100) Substrates
title_full Effect of Interfacial Bonds on the Morphology of InAs QDs Grown on GaAs (311) B and (100) Substrates
title_fullStr Effect of Interfacial Bonds on the Morphology of InAs QDs Grown on GaAs (311) B and (100) Substrates
title_full_unstemmed Effect of Interfacial Bonds on the Morphology of InAs QDs Grown on GaAs (311) B and (100) Substrates
title_short Effect of Interfacial Bonds on the Morphology of InAs QDs Grown on GaAs (311) B and (100) Substrates
title_sort effect of interfacial bonds on the morphology of inas qds grown on gaas 311 b and 100 substrates
topic InAs
Transition thickness
High miller index
Strain
Interfacial bonds
url http://dx.doi.org/10.1007/s11671-009-9304-z
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AT limeicheng effectofinterfacialbondsonthemorphologyofinasqdsgrownongaas311band100substrates
AT xiongmin effectofinterfacialbondsonthemorphologyofinasqdsgrownongaas311band100substrates
AT zhaoliancheng effectofinterfacialbondsonthemorphologyofinasqdsgrownongaas311band100substrates