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Effect of surface physics of metal oxides on the ability to formmetallic nanowires

By Jenn-Ming Song, Shih-Yun Chen, Yu-Lin Shen, Chi-Hang Tsai, Shih-Wei Feng, Hsien-Tse Tung and In-Gann Chen


Through the control of surface physics of oxide films, nanowires of various metals can be readily grown on the surface of oxide films without templates and surfactants. To clarify how the characteristics of oxides affect the formation of metallic nanowires, this report investigated the influence of the surface physical characteristics, including morphological, electrical, optical and hydrophilic properties of the metal oxide substrates (TiO2, CeO2, and indium tin oxide), on the yield of Ag and Pt nanowires. In addition to the surface roughness, photo-induced defects were suggested to be the key factor dominating the number of nucleation sites and thus the population of nanowires

Topics: Metal oxide, Metallic nanowires, Surface physics, Nucleation and growth
Year: 2014
DOI identifier: 10.1016/j.apsusc.2013.08.076
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