Self‐Assembly of Multiple Stacked Nanorings by Vertically Correlated Droplet Epitaxy |
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| Authors: | Jiang Wu Yusuke Hirono Xinlei Li Zhiming M. Wang Jihoon Lee Mourad Benamara Siyuan Luo Yuriy I. Mazur Eun Soo Kim Gregory J. Salamo |
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| Affiliation: | 1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, PR China;2. Department of Electronic and Electrical Engineering, University College London, Torrington Place, London, UK;3. Arkansas Institute for Nanoscale Materials Science and Engineering, University of Arkansas, Fayetteville, AR, USA;4. MOE Key Laboratory of Laser Life Science & Institute of Laser Life ScienceCollege of Biophotonics, South China Normal University, Guangzhou, PR China;5. College of Electronics and Information, Kwangwoon University, Seoul, South Korea |
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| Abstract: | 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. |
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| Keywords: | droplet epitaxy quantum rings nanofabrication self assembly |
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