PS/TiO_2复合材料的蛋白石结构光子晶体制备及表征  

Photonic Crystal of PS/TiO_2 Opal Structure: Fabrication and Characterization

作　　者：汤荣年[1] 

机构地区：[1]天津大学理学院,天津300072

出　　处：《电子元件与材料》2003年第9期45-47,共3页Electronic Components And Materials

基　　金：天津自然科学基金项目(013603011)

摘　　要：以乳液聚合得到的单分散性聚苯乙烯(PS)微球为种子,利用原位溶胶凝胶技术在微球的表面上吸附上二氧化钛(TiO2)小颗粒,从而得到PS/TiO2复合微球的乳液,利用乳液的自组装得到了PS/TiO2复合材料的蛋白石结构光子晶体。比较了PS蛋白石结构光子晶体和PS/TiO2复合材料蛋白石结构光子晶体的透射谱,得出复合材料的光子晶体带隙特征比PS光子晶体的带隙特征强。Monodispersed polystyrene (PS) spheres of different diameter were prepared by emulsion polymerization, and then composite spheres of PS/TiO2 were formed by in-situ Sol-Gel technique, finally photonic crystal of PS/TiO2 opal structure were fabricated by self-assembly. The opal PS colloidal crystals exhibit incomplete photonic band gap, which could be enhanced by replacing the PS spheres with PS/TiO2 composite spheres.

关 键 词：聚苯乙烯/二氧化钛 蛋白石结构光子晶体 光子带隙 

分 类 号：TN204[电子电信—物理电子学]