WO_3基电致变色器件的制备及性能研究  

Study on Preparation and Properties of WO_3-based Electrochromic Device

作　　者：唐秀凤 郑国祥 陈国新 莫钊鹏 胡晓燕 廖慧珍 罗坚义[1,2] TANG Xiu-feng;ZHENG Guo-xiang;CHEN Guo-xin;MO Zhao-peng;HU Xiao-yan;LIAO Hui-zhen;LUO Jian-yi(School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, China;Technology Research Center of Flexible Sensing Materials and Devices, Wuyi University, Jiangmen 529020, China)

机构地区：[1]五邑大学应用物理与材料学院,江门529020 [2]五邑大学柔性传感材料与器件应用技术研究中心,江门529020

出　　处：《人工晶体学报》2019年第1期167-172,共6页Journal of Synthetic Crystals

基　　金：2016年"创新强校工程-青年创新人才类项目"(2016KQNCX169);2017年"创新强校工程-特色创新人才类项目"(2017KTSCX186);广东省自然科学杰出青年基金(2015A030306031);广东省高等学校优秀青年教师培养计划项目(YQ2015160);广东省高校科研创新团队(2015KCXTD027);广东省协同育人平台(粤教高[2016]31);江门科技计划项目(江科[2017]307号;江财工[2017]149号);五邑大学青年科研基金(2018td04);16年江门市小微众创空间(10118016);2017大学生创新创业训练计划项目(201711349063;201711349066);2018年广东大学生科技创新培养专项资金("攀登计划"pdjhb0511)

摘　　要：本文采用真空热蒸发法,在ITO基底上制备WO_3薄膜,之后在空气气氛中对其进行了400℃,1 h的退火处理。SEM测试结果表明,退火后的WO_3薄膜变得更为致密平整。将退火后的WO_3薄膜,及通过溶胶凝胶法制得的TiO_2-CeO_2对电极薄膜和PC-PEO-LiClO_4凝胶态电解质封装得到电致变色器件,以探索该退火处理对WO_3薄膜电致变色性能的影响。结果表明,该WO_3基电致变色器件在632. 8 nm处的光学调制幅度达56. 8%,记忆时间超过24 h,且具有良好的循环稳定性。本研究表明WO_3薄膜的后期退火处理对制备高性能WO_3基电致变色器件具有重要的意义。WO 3 thin films were prepared onto ITO glass substrates by thermal evaporation and then were annealed in air ambient at 400℃for 1 h.The SEM results show that those annealed WO 3 thin films got more compact and smoother.The electrochromic devices were obtained by packaging the annealed WO 3 thin films with TiO 2-CeO 2 counter electrode fabricated with sol-gel method and LiClO 4 gel electrolyte in PC-PEO.Effects of the annealing treatment on the electrochromic properties of WO 3 films were studied.It turned out that the optical modulation of the fabricated electochromic device was 56.8%at wavelength of 632.8 nm,and its memory duration was longer than 24 h,with good cyclic stability.This study suggests that the post annealing treatment of WO 3 films might be an effective way to improve the performances of WO 3 based electrochromic devices.

关 键 词：WO3薄膜 热蒸发 退火处理 电致变色 

分 类 号：TG34[金属学及工艺—金属压力加工]