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Manipulating the size distribution of supported gold nanostructures - art. no. 013111

  作者 Sundar, A; Hughes, RA; Farzinpour, P; Gilroy, KD; Devenyi, GA; Preston, JS; Neretina, S  
  选自 期刊  Applied Physics Letters;  卷期  2012年100-1;  页码  13111-13111  
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[摘要]Gold nanostructures, with a wide size distribution, are confined between a metal foil and the oxide substrate upon which they were formed. When heated the surface energy gradient between the oxide and foil results in a net migration of gold atoms from the nanostructure to the foil. With time, the nanostructures show a size reduction and a narrowed size distribution. The narrowing results from the formation of foil contact points with only the largest nanostructures, a characteristic which leaves small nanostructures intact while consuming larger ones. Also demonstrated is the size reduction of arrayed gold structures to nanoscale dimensions. (C) 2012 American Institute of Physics. [doi:10.1063/1.3675569]

 
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