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Self-Assembly of Multiple Stacked Nanorings by Vertically Correlated Droplet Epitaxy

机译:垂直相关的液滴外延法对多个堆叠纳米环的自组装。

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摘要

Fabrication of advanced artificial nanomaterials is a long-term pursuit to fulfill the promises of nanomaterials. In the last ten years, droplet epitaxy has been emerging as a versatile fabrication method for various complex nanomaterials, but there is a lack of growth protocol to control the growth vertically. Here we report a vertically correlated droplet epitaxy growth method. We find that the nanodroplets form preferable on the preexisting nanorings, which enables fabrication of vertically aligned nanostructures by droplet epitaxy. Nucleation thermodynamics and growth kinetics have been proposed to explain the vertically correlated droplet epitaxy. Heterojunctions can be realized at nanoscale by the presented method. In addition, the nucleation thermodynamics of nanodroplets observed in this article will allow site-controlled fabrication of nanostructures.
机译:先进的人造纳米材料的制造是实现纳米材料承诺的长期追求。在过去的十年中,液滴外延已成为一种用于各种复杂纳米材料的通用制造方法,但是缺乏用于垂直控制生长的生长方案。在这里,我们报告一种垂直相关的液滴外延生长方法。我们发现纳米液滴在预先存在的纳米环上形成优选的形式,这使得能够通过液滴外延制造垂直排列的纳米结构。已经提出了成核热力学和生长动力学来解释垂直相关的液滴外延。通过所提出的方法,可以在纳米级实现异质结。另外,在本文中观察到的纳米液滴的成核热力学将允许现场控制纳米结构的制造。

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  • 来源
    《Advanced Functional Materials》 |2014年第4期|530-535|共6页
  • 作者单位

    State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China Chengdu, 610054, PR China,Department of Electronic and Electrical Engineering University College London, Torrington Place London, WC1E 7JE, UK;

    Arkansas Institute for Nanoscale Materials Science and Engineering University of Arkansas Fayetteville, AR 72701, USA;

    MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science College of Biophotonics South China Normal University Guangzhou, 510631, PR China;

    State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China Chengdu, 610054, PR China,Arkansas Institute for Nanoscale Materials Science and Engineering University of Arkansas Fayetteville, AR 72701, USA;

    College of Electronics and Information Kwangwoon University Nowon-gu, Seoul, 139-701, South Korea;

    Arkansas Institute for Nanoscale Materials Science and Engineering University of Arkansas Fayetteville, AR 72701, USA;

    State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China Chengdu, 610054, PR China;

    Arkansas Institute for Nanoscale Materials Science and Engineering University of Arkansas Fayetteville, AR 72701, USA;

    Arkansas Institute for Nanoscale Materials Science and Engineering University of Arkansas Fayetteville, AR 72701, USA,College of Electronics and Information Kwangwoon University Nowon-gu, Seoul, 139-701, South Korea;

    Arkansas Institute for Nanoscale Materials Science and Engineering University of Arkansas Fayetteville, AR 72701, USA;

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