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Shin, Hyeon Suk
Lab for Carbon and 2D Materials
Research Interests
  • Two-dimensional materials: graphene, transition metal dichalcogenides, h-BN, and their heterostructures

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Density control of ZnO nanowires grown using Au-PMMA nanoparticles and their growth behavior

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Title
Density control of ZnO nanowires grown using Au-PMMA nanoparticles and their growth behavior
Author
Shin, Hyeon SukSohn, Jung InnKim, Dong ChungHuck, Wilhelm T. S.Welland, Mark E.Choi, Hee CheulKang, Dae Joon
Issue Date
2009-02
Publisher
IOP PUBLISHING LTD
Citation
NANOTECHNOLOGY, v.20, no.8
Abstract
Au nanoparticles stabilized by poly(methyl methacrylate) (PMMA) were used as a catalyst to grow vertically aligned ZnO nanowires (NWs). The density of ZnO NWs with very uniform diameter was controlled by changing the concentration of Au-PMMA nanoparticles (NPs). The density was in direct proportion to the concentration of Au-PMMA NPs. Furthermore, the growth process of ZnO NWs using Au-PMMA NPs was systematically investigated through comparison with that using Au thin film as a catalyst. Au-PMMA NPs induced polyhedral-shaped bases of ZnO NWs separated from each other, while Au thin film formed a continuous network of bases of ZnO NWs. This approach provides a facile and cost-effective catalyst density control method, allowing us to grow high-quality vertically aligned ZnO NWs suitable for many viable applications.
URI
https://scholarworks.unist.ac.kr/handle/201301/3155
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=65249127486
DOI
10.1088/0957-4484/20/8/085601
ISSN
0957-4484
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CHM_Journal Papers
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