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Journal of Inorganic Materials

Journal of Inorganic Materials >

2008 , Vol. 23 >Issue 2: 351 - 356

DOI: https://doi.org/10.3724/SP.J.1077.2008.00351

Research Paper

Effects of Ag Particles’ Shape in Ag-SiO2 Composite Films on Surface Resonance Absorption Properties

  • ZHAO Ya-Li ,
  • XU Xiao-Liang ,
  • MING Hai
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  • 1. Structure Research Laboratory, Chinese Academy of Sciences, Hefei 230026, China; 2. Department Physics, University of Science and technology of China, Hefei 230026, China

Received date: 2007-03-22

  Revised date: 2007-05-11

  Online published: 2008-03-20

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Abstract

Ag/SiO2 multilayer thin films were prepared by RF magnetron sputtering. The Ag nanoparticles diffuse towards and mostly assemble near the surface of the Ag-SiO2 films via rapid thermal treatment. Ag nanoparticles with different shapes can be obtained by changing the thickness of Ag and SiO2 layers. It is found that the Ag particles with sharper edges and wider terrace between steps have more electrons at Fermi level. Accordingly, the intensity of resonance absorption is obviously enhanced.

Key words： resonance absorption; surface state; energy of surface state; Fermi leve

Cite this article

ZHAO Ya-Li , XU Xiao-Liang , MING Hai . Effects of Ag Particles’ Shape in Ag-SiO2 Composite Films on Surface Resonance Absorption Properties[J]. Journal of Inorganic Materials, 2008 , 23(2) : 351 -356 . DOI: 10.3724/SP.J.1077.2008.00351

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