Treating temperature effect on bandgap in polymer opal photonic crystals  

作　　者：Bo Li Ji Zhou Wei Hu Longtu Li Zhilun Gui 

机构地区：[1]Tsing Hua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

出　　处：《Chinese Science Bulletin》2002年第11期960-962,共3页

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 50172025);the Fundamental Research Foundation of Tsinghua University (Grant No. JZ2001008).

摘　　要：The optical reflective spectra and microstruc-tures of polystyrene opal photonic crystals treated with different temperatures have been investigated. With temperature increasing, the polystyrene spheres in opal structure transform to dodecahedrons, and the peak of reflective spectrum moves to shorter wavelength. The experiment result testifies the effect of the effective refractive index and the filling ratio to the bandgap position, and it corresponds to the theoretical simulative result.The optical reflective spectra and microstructures of polystyrene opal photonic crystals treated with different temperatures have been investigated. With temperature increasing, the polystyrene spheres in opal structure transform to dodecahedrons, and the peak of reflective spectrum moves to shorter wavelength. The experiment result testifies the effect of the effective refractive index and the filling ratio to the bandgap position, and it corresponds to the theoretical simulative result.

关 键 词：PHOTONIC CRYSTALS OPAL temperature self-assemble. 

分 类 号：O631[理学—高分子化学]