无机材料学报2023，Vol.38Issue(12)：1434-1440,7.DOI:10.15541/jim20230154
Ti2Nb10O29薄膜的制备及其电致变色性能
Preparation and Electrochromic Properties of Ti2Nb10O29 Films
摘要
Abstract
Electrochromic materials are energy-saving and environmentally friendly materials that can reduce energy use by adjusting sunlight and solar-heat.In particular,transition metal oxides with stable chemical properties have been widely studied as electrochromic materials.Recently,bimetallic oxides with two variable valence states of metal ions have received increasing attention due to their better electrochemical activity.In this study,Ti2Nb10O29 films were successfully prepared on conductive glasses,and the effect of the atomic ratio of niobium to titanium in the precursor on the electrochromic properties of the thin films was investigated.The results show that the thin film prepared from precursors with an atomic ratio of niobium to titanium of 3:1 possesses the best electrochromic properties.It is worth noting that the thin film achieves a large optical modulation in the wavelength range of 300-1100 nm,and the transmittance in the bleached state is nearly 90%,appearing grayish blue under the action of-1.6 V,colorless state under the action of 0.4 V,and achieving a maximum optical modulation of 69.4%at the wavelength of 750 nm.After a square-wave potential of-1.6 V for 60 s and 0.4 V for 15 s,the film shows response time of 29.8 s for coloring and 5.9 s for bleaching.Coloration efficiency of the as-prepared film is 68.3 cm2·C-1.The above results indicate that the successfully prepared Ti2Nb10O29 thin film enriches variety of bimetallic oxide electrochromic materials and has widely application prospect.关键词
电致变色/双金属氧化物/Ti2Nb10O29/中性色/光调制幅度Key words
electrochromic/bimetallic oxide/Ti2Nb10O29/neutral color/optical modulation分类
化学化工引用本文复制引用
孙佳伟,宛心怡,杨婷,马董云,王金敏..Ti2Nb10O29薄膜的制备及其电致变色性能[J].无机材料学报,2023,38(12):1434-1440,7.基金项目
国家自然科学基金(62275154)National Natural Science Foundation of China(62275154) （62275154）
