Haibin Ni, Ming Wang, Wei Chen
Department of Physics and Technology, Nanjing Normal University, Jiangsu Key Laboratory on Opto-Electronic Technology, Nanjing, China.
Opt Express. 2011 Dec 19;19(27):25900-10. doi: 10.1364/OE.19.025900.
A facile approach of fabricating hollow cylindrical inverse opals and inverse opal columns by sol-gel co-assembly method was proposed. Polystyrene (PS) colloidal suspension added with hydrolyzed silicate precursor solution was used to self-assemble composite colloidal crystals which consist of PS colloidal crystal template and infiltrated silica gel in the interstitial of microspheres. Continuous hollow cylindrical composite colloidal crystal films have been produced on capillaries' outside and internal surface. Composite colloidal crystal columns which filling up the interior of a capillary were fabricated by pressure assisted sol-gel co-assembly method. Hollow cylindrical inverse opals and inverse opal columns were obtained after removing PS colloidal crystal from the composite colloidal crystal. Optical properties of the silica hollow cylindrical inverse opals were characterized by transmission spectrum and a stop band was observed. Structure and optical properties of the inverse opal columns were investigated.
提出了一种通过溶胶-凝胶共组装法制备空心圆柱反蛋白石和反蛋白石柱的简便方法。添加了水解硅酸盐前驱体溶液的聚苯乙烯（PS）胶体悬浮液用于自组装复合胶体晶体，该复合胶体晶体由PS胶体晶体模板和微球间隙中渗透的硅胶组成。在毛细管的外表面和内表面上制备了连续的空心圆柱复合胶体晶体薄膜。通过压力辅助溶胶-凝胶共组装法制备了填充在毛细管内部的复合胶体晶体柱。从复合胶体晶体中去除PS胶体晶体后，得到了空心圆柱反蛋白石和反蛋白石柱。通过透射光谱对二氧化硅空心圆柱反蛋白石的光学性质进行了表征，并观察到了一个禁带。研究了反蛋白石柱的结构和光学性质。
