中国物理B ›› 2012, Vol. 21 ›› Issue (5): 57802-057802.doi: 10.1088/1674-1056/21/5/057802

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Electric potential distribution near nanocone arrays on metal substrates

黄晓菁,游荣义   

  1. Department of Physics, School of Science, Jimei University, Xiamen 361021, China
  • 收稿日期:2011-11-17 修回日期:2012-04-27 出版日期:2012-04-01 发布日期:2012-04-01
  • 基金资助:
    Project supported by the Natural Science Foundation of Fujian Province, China (Grant Nos. 2010J01210, B509043A, and 2011J05006).

Electric potential distribution near nanocone arrays on metal substrates

Huang Xiao-Jing(黄晓菁) and You Rong-Yi(游荣义)†   

  1. Department of Physics, School of Science, Jimei University, Xiamen 361021, China
  • Received:2011-11-17 Revised:2012-04-27 Online:2012-04-01 Published:2012-04-01
  • Supported by:
    Project supported by the Natural Science Foundation of Fujian Province, China (Grant Nos. 2010J01210, B509043A, and 2011J05006).

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摘要： Based on the nanostructured surface model, where conical nanoparticle arrays grow out symmetrically from a plane metal substrate, a theoretical model of the local electric potential near nanocones is built when a uniform external electric field is applied. In terms of this model, the electric potential distribution near the nanocone arrays is obtained and given by a curved surface using a numerical computation method. The computational results show that the electric potential distribution near the nanocone arrays exhibit an obvious geometrical symmetry. These results could serve as a basis for explaining many abnormal phenomena, such as the abnormal infrared effects (AIREs) which are found on nanostructured metal surfaces, as well as a reference for investigating the applications of nanomaterials, such as nanoelectrodes and nanosensors.

关键词: nanocone arrays, nanostructured metal surface, electric potential distribution

Abstract: Based on the nanostructured surface model, where conical nanoparticle arrays grow out symmetrically from a plane metal substrate, a theoretical model of the local electric potential near nanocones is built when a uniform external electric field is applied. In terms of this model, the electric potential distribution near the nanocone arrays is obtained and given by a curved surface using a numerical computation method. The computational results show that the electric potential distribution near the nanocone arrays exhibit an obvious geometrical symmetry. These results could serve as a basis for explaining many abnormal phenomena, such as the abnormal infrared effects (AIREs) which are found on nanostructured metal surfaces, as well as a reference for investigating the applications of nanomaterials, such as nanoelectrodes and nanosensors.

Key words: nanocone arrays, nanostructured metal surface, electric potential distribution

中图分类号:  (Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)

  • 78.67.-n
82.45.Yz (Nanostructured materials in electrochemistry) 61.46.-w (Structure of nanoscale materials)