Selective growth of Si nanowire arrays via galvanic displacement processes in water-in-oil microemulsions.
作者信息
Gao Di, He Rongrui, Carraro Carlo, Howe Roger T, Yang Peidong, Maboudian Roya
机构信息
Department of Chemical Engineering, University of California at Berkeley, Berkeley, CA 94720, USA.
出版信息
J Am Chem Soc. 2005 Apr 6;127(13):4574-5. doi: 10.1021/ja043645y.
PMID:15796513
Abstract
Galvanic displacement processes are employed in water-in-oil microemulsions to deposit gold nanoclusters selectively on Si surfaces and sidewalls. The gold clusters then serve as catalysts to achieve selective growth of vertically and laterally aligned Si nanowire arrays by chemical vapor deposition via the vapor-liquid-solid growth mechanism. The size of the gold clusters is shown to have a good correlation with the microemulsion parameters, which in turn controls the size of the synthesized nanowires.
摘要
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