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Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (4): 834.

• Articles • Previous Articles    

Stress-sensitive Optical Properties of Polymer-immobilized Crystalline Colloidal Array Films

HUANG Xue-Guang1, YANG Zheng-Wen1, SUN Jing-Bo1, SUN Li1, LI Bo2, ZHOU Ji1*   

  1. 1. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
    2. Advanced Materials Institute, Shenzhen Graduate School, Tsinghua University, Shenzhen 518055, China
  • Received:2009-05-26 Online:2010-04-10 Published:2010-04-10
  • Contact: ZHOU Ji. E-mail: zhouji@mail.tsinghua.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 50572043, 50621201和10774087)资助.

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Abstract:

Polymer-immobilized crystalline colloidal array(PCCA) films composed of polyacrylamide were fabricated by photoinitiated polymerization based on crystalline colloidal arrays composed of monodisperse polystyrene(PS) particles. The stress-sensitive optical property of PCCA film was investigated by micro-region reflectivity spectrometer under a series of loads. It was revealed that an acute peak can be found in the reflectivity spectrum of PCCA film, which was corresponding to the photonic bandgap of the film, and the midgap wavelength shifted approximately linearly and reversibly with load.

Key words: Photonic crystal; Colloid; Monodisperse; Tunable bandgap; Stress-sensitive

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