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Author

Shin, Hyeon Suk
Lab for Nanomaterials and Nanoanalysis(LNN)
Research Interests
  • Two-dimensional materials, graphene, transition metal dichalcogenides, h-BN, heterostructure

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

Cited 8 times inthomson ciCited 8 times inthomson ci
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
Keywords
Au nanoparticles; Au thin films; Catalyst densities; Concentration of; Density controls; Growth behaviors; Growth process; High qualities; PMMA nanoparticles; Polymethylmethacrylate; Uniform diameters; Vertically aligned; ZnO nanowires; Zno nws
Issue Date
200902
Publisher
IOP PUBLISHING LTD
Citation
NANOTECHNOLOGY, v.20, no.8, pp. -
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
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DOI
http://dx.doi.org/10.1088/0957-4484/20/8/085601
ISSN
0957-4484
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