| 大面积电致变色器件的制备及性能研究 |
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| 引用本文： | 董子尧,李昕,徐坚.大面积电致变色器件的制备及性能研究[J].北京服装学院学报,2011(4):7-14. |
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| 作者姓名： | 董子尧 李昕 徐坚 |
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| 作者单位： | [1]北京服装学院材料科学与工程学院,北京100029 [2]服装材料研究开发与评价北京市重点实验室,北京100029 [3]中国科学院化学研究所高分子物理与化学重点实验室,北京100190 |
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| 基金项目： | 北京市科技新星项目（2007BOIO）、国家自然科学基金项目（20974005）和北京市自然科学基金项目（2102017）. |
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| 摘 要： | 采用溶胶-凝胶法合成了TiO2-CeO2薄膜，XRD、SEM、紫外可见透射光谱、循环伏安法等测试结果表明：经500℃热处理1h后的TiO2-CeO2薄膜呈面心立方方铈矿结构，其薄膜表面光滑，光学透过率高于80％，电荷存储量可达9．46mC·cm^-2，循环可逆性K为95％，是一种性能优良的电荷储存材料．同时采用聚（3，4-乙撑二氧噻吩）PEDOT／PSS为电致变色活性材料，制备了对称结构（ITO｜｜PEDOT／PSS｜｜PMMA／PC—LiClO4｜｜PEDOT／PSS｜｜ITO）和非对称结构（ITO｜｜PEDOT／PSS｜｜PMMA／PC—LiClO4｜｜TiO2-CeO2｜｜ITO）的大面积（10cm×10cm）电致变色器件，发现二者的对比度分别为17％、23．4％，褪色响应时间则分别为0．9s和2．8s，具有良好的应用性能．
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| 关 键 词： | TiO2-CeO2 电致变色器件 PEDOT／PSS 非对称结构 |
Preparation and Properties of Large Area Electrochromic Device |
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| DONG Zi-yao,LI Xin,XU Jian.Preparation and Properties of Large Area Electrochromic Device[J].Journal of Beijing Institute of Clothing Technology(Nature Science Edition),2011(4):7-14. |
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| Authors: | DONG Zi-yao LI Xin XU Jian |
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| Affiliation: | 3 School of Materials Science and Engineering, Beijing Institute of Fashion Technology, Beijing 100029 2. Beijing Key Laboratory of Clothing Materials R＆D and Assessment, Beijing 100029, China 3. State Key Laboratory of Polymer Physics ＆ Chemistry, The Chinese Academy of Sciences, Beijing 100190, China) |
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| Abstract: | TiO2-CeO2 composite films on ITO glass substrate were prepared by sol-gel process. The structure and properties of the films were characterized by XRD, SEM, UV-vis transmitted spectrum and cyclic voltammetry, respectively. The results show that TiO2-CeO2 thin films can translate into face center cubic cerium ore after heat treatment at 500℃ for 1 h, with optical transmittances of over 80% , the capacity of charge storage of 9.46 mC .era-2 and the cycle of reversible K of 95%. All the characteristics above make it be a kind of good charge storage material. Besides, poly（3,4- ethylenedioxythiophene） PEDOT/PSS is used as the electrochromic active material to prepare symmetric structured （ITO ｜｜ PEDOT/PSS ｜｜ electrolyte ｜｜ PEDOT/PSS ｜｜ ITO）and asymmetric structured （ITO｜｜ PEDOT/PSS ｜｜ electrolyte ｜｜ TiO2-CeO2 ｜｜ ITO） eleetrochromic devices with a large area of （10× 10） cm2 respectively. It is found that their optical contrast ratio reach to 17% and 23.4% with the corresponding fade response time of 0.9 s and 2.8 s, respectively. |
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| Keywords: | TiO2-CeO2 electrochromic device PEDOT/PSS asymmetric structured |
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