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介绍了大面积有序反蛋白石结构介孔二氧化钛薄膜光子晶体制备与性能研究的进展.为了保证二氧化钛骨架结构的稳定性和有序度,从而使氧化钛介孔薄膜达到大面积结构均匀,在介孔薄膜制备过程中采用了几种新的工艺方法,其中包括二氧化硅晶体模板的应用和用NaOH溶液代替常用的HF溶液作为模板去除剂.制备的介孔二氧化钛薄膜光子晶体的面积达到厘米尺寸,二氧化钛骨架的填充率达到17.4%,薄膜制备过程中的收缩率<3%.薄膜透射光谱研究结果表明,这种大面积3D有序的反蛋白石结构介孔二氧化钛薄膜具有非常优良的光子带隙特性,有望成为一类具有非常好的发展和应用前景的光子晶体材料.
In this paper, the progress of research on preparation and properties of mesoporous TiO2 thin film photonic crystals with large-area order reverse-opal structure is introduced.In order to ensure the stability and orderliness of titanium dioxide matrix structure, Several new methods were used in the preparation of porous films, including the application of silica crystal template and the replacement of common HF solution with NaOH solution as template remover.The mesoporous titania film photonic crystal has an area of centimeter , The filling rate of titanium dioxide skeleton reaches 17.4% and the shrinkage rate of the film during preparation is less than 3%. The results of transmission spectrum of thin films show that this large-area 3D ordered anti-opal structure mesoporous titania has a very good photonic band gap Characteristics, is expected to become a class of photonic crystal materials with very good development and application prospects.