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以胶体晶为模板溶胶凝胶法制备二氧化钛掺铈反蛋白石结构

Fabrication of TiO₂ Doped Cerium Inverse Opal Structure by Sol-gel Method Using Colloid Crystal as Template

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【Author】 Jin Yi Zhu Yihua Yang Xiaoling Gan Luping (Key Lab. for Ultraf ine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai 200237)

【机构】超细材料制备与应用教育部重点实验室华东理工大学材料科学与工程学院；超细材料制备与应用教育部重点实验室；华东理工大学材料科学与工程学院；上海200237；

【摘要】以乳液聚合法得到的单分散性聚苯乙烯(PS)胶体粒子为模板,采用恒温恒湿垂直沉积法构建蛋白石结构的光子晶体,并用布拉格方程对不同粒径形成的蛋白石结构所产生的禁带位置进行了研究。以该胶体晶为模板溶胶凝胶法制备二氧化钛(TiO2)掺杂铈(Ce)反蛋白石结构,并利用XRD和XPS对其结晶状态和元素价态进行分析。更多还原

【Abstract】 The polystyrene colloid spheres prepared by emulsion polymerization were fabricated into 3D ordered opal structure by vertical sediment method. The bandgap of these opal structures fabricated by PS with different diameter were studied by Bragg equation. The inverse opal of TiO2 doped cerium was prepared by sol-gel method when opal was taken as the template. The crystal size and crystallization were analyzed by XRD and XPS.更多还原

【关键词】聚苯乙烯；蛋白石；光子晶体；光子禁带；
【Key words】 polystyrene opal photonic crystal photonic bandgap；

【基金】国家自然科学基金项目(20236020,20676038)