CUED Publications database

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

Shin, HS and Sohn, JI and Kim, DC and Huck, WT and Welland, ME and Choi, HC and Kang, DJ (2009) Density control of ZnO nanowires grown using Au-PMMA nanoparticles and their growth behavior. Nanotechnology, 20. 085601-.

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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.

Item Type: Article
Uncontrolled Keywords: Crystallization Gold Macromolecular Substances Materials Testing Molecular Conformation Nanostructures Nanotechnology Particle Size Polymethyl Methacrylate Surface Properties Zinc Oxide
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:42
Last Modified: 06 Oct 2014 01:20
DOI: 10.1088/0957-4484/20/8/085601

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