Synthesis and Characterization of Tunable Opal Photonic Crystals with Isotropic Structure

doi:10.7517/j.issn.1674-0475.2012.05.358

Abstract

Abstract: In this study, polystyrene microspheres assembling photonic crystals were fabricated by spin coating. Features of photonic crystals were studied, and the influence of different parameters on photonic band gap with a certain size microspheres was analyzed. The results showed that: photonic crystals fabricated by spin coating presented isotropic characteristics, and the photonic band gap of photonic crystal could be controlled by changing parameters. The reflection band of photonic crystal depended on mass fraction of microspheres, and the intensity depended on layers of spin coating. Consequently, we can control the photonic band gap via changing mass fraction of microspheres and layers of spin coating according to the requirement during designing the photonic crystal.

Key words: spin coating, vertical deposition, isotropic, three-dimensionally ordered, tunable photonic band gap, photonic crystal

CLC Number:

TQ31

YU Xiao-wei, GUO Jin-bao, WEI Jie. Synthesis and Characterization of Tunable Opal Photonic Crystals with Isotropic Structure[J]. Imaging Science and Photochemistry, 2012, (5): 358-364.

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