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首页> 中文期刊> 《中国物理快报：英文版》 >Fabrication of Colloidal Photonic Crystals with Heterostructure by Spin-Coating Method

Fabrication of Colloidal Photonic Crystals with Heterostructure by Spin-Coating Method

         
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摘要

Colloidal photonic crystal heterostructures, composed of two opaline photonic crystal films of silica spheres with different diameters, are fabricated by a two-step spin-coating method. Scanning electron microscopy (SEM) and UV-vis speetrophotometer are used to characterize the heterostructures. The SEM images show good ordering of the two-layer colloidal crystals constituting the heterostructures. The transmission spectra measured from the (111) plane in the heterostructure show that the composite colloidal photonic crystals have double photonic stop bands. Furthermore, when the sizes of the silica spheres used for fabricating the composite photonic crystal are slightly different, the transmission spectrum shows that the composite photonic crystals have more extended bandgap than that of the individual photonic crystals due to partial overlapping of its two photonie stop bands.

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  • 来源
    《中国物理快报：英文版》 |2009年第2期|149-152|共4页
  • 作者

    WANG Ai-Jun; CHEN Sheng-Li; DONG Peng; CAI Xiao-Gang; ZHOU Qian; YUAN Gui-Mei; HU Chun-Tian; ZANG Dao-Zhong;

  • 作者单位

    State key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 1002249;

    Department of Mathematics and Physics,China University of Petroleum,Beijing 102249;

    State key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 1002249;

    State key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 1002249;

    Department of Mathematics and Physics,China University of Petroleum,Beijing 102249;

    State key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 1002249;

    State key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 1002249;

    State key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 1002249;

    Optical Physics Laboratory,Institute of Physics and Center for Condensed Matter Physics,Chinese Academy of Sciences,Beijing 100190;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 物理学;
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