文献类型：期刊文献

英文题名：Sol-gel preparation and optical properties of amorphous TiO2·P2O5 films

作者：Tang, Anjiang Huang, Hongsheng Wei, Deju Tang, Zhenghe Zhang, Miaohe

第一作者：唐安江

通信作者：Tang, Anjiang

机构：[1] School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China; [2] School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550023, China

第一机构：贵州理工学院化学工程学院

年份：2016

卷号：20

期号：3

起止页码：235-239

外文期刊名：Materials Research Innovations

收录：EI(收录号：20161802319963);Scopus(收录号：2-s2.0-84964414674)

语种：英文

外文关键词：Composite films - Energy gap - Film preparation - Optical properties - Oxide minerals - Refractive index - Scanning electron microscopy - Sol-gel process - Thermoanalysis - Thin films - Titanium dioxide

摘要：The transparent, homogeneous and amorphous TiO2·P2O5 composite films with high TiO2 content were prepared for the first time by sol-gel dip-coating method. The gel and film were characterised by thermo gravimetric-differential thermal analyser, X-ray diffraction, scanning electron microscope and UV-vis-NIR. The effect of TiO2 content on the morphological, structural and optical properties of gel and film were investigated. The refractive index, band gap and Urbach energy of the films were calculated. The results show that the TiO2·P2O5 films exhibit high refractive index (>2.0) which is similar to that of TiO2·P2O5 bulk glass with the same composition. With the rising of TiO2 content, the band gap of the TiO2·P2O5 film decreased while their refractive index and Urbach energy increased. Furthermore, the sol-gel process developed in this study offer an efficient route to for preparation such TiO2·P2O5 films into optical devices. ? 2016 Informa UK Limited, trading as Taylor Francis Group.