| CeO2修饰的透明TiO2纳米管电极的电致变色器件 |
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| 引用本文： | 文豪,刘志甫,杨群保,李永祥.CeO2修饰的透明TiO2纳米管电极的电致变色器件[J].无机材料学报,2012(1):74-78. |
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| 作者姓名： | 文豪 刘志甫 杨群保 李永祥 |
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| 作者单位： | 中国科学院上海硅酸盐研究所;中国科学院研究生院 |
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| 基金项目： | 科技部973项目(2009CB939904);国家自然科学基金(50703047);上海市科委-AM基金(09520714500)~~ |
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| 摘 要： | 采用电化学沉积法在阳极氧化制备的TiO2纳米管阵列管壁上沉积一层CeO2纳米颗粒,再将CeO2修饰的透明TiO2纳米管阵列薄膜对电极与聚三甲基噻吩变色电极组装成透过型电致变色器件.实验结果表明:CeO2修饰的TiO2纳米管阵列薄膜仍保持良好的光透过性,其电荷存储能力比纯TiO2纳米管电极提高了30%.经CeO2修饰的TiO2纳米管改善了器件的性能,与对电极为单一TiO2纳米管阵列的器件相比,其对比度仍保持在38%左右,其褪色时间由1.3 s缩短为0.8 s.电致变色器件快速响应得益于纳米管与纳米颗粒组成的复合结构的高比表面积和快速的电荷传输过程.
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| 关 键 词： | 氧化铈 氧化钛 纳米管阵列 电致变色 对电极 |
Enhanced Electrochromic Properties by Using a CeO2 Modified TiO2 Nanotube Array Transparent Counter Electrode |
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| WEN Hao,LIU Zhi-Fu,YANG Qun-Bao,LI Yong-Xiang.Enhanced Electrochromic Properties by Using a CeO2 Modified TiO2 Nanotube Array Transparent Counter Electrode[J].Journal of Inorganic Materials,2012(1):74-78. |
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| Authors: | WEN Hao LIU Zhi-Fu YANG Qun-Bao LI Yong-Xiang |
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| Affiliation: | 1(1.Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China;2.Graduate University of the Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | A new kind of electrochromic device composed of a CeO2 modified TiO2 nanotube array counter electrode and a working electrode of P3MeT film was reported.The counter electrode was fabricated by electrodepositing CeO2 nanoparticles onto the walls of anodized TiO2 nanotubes.The CeO2 modified TiO2 nanotube array counter electrode keeps a high transparency under working voltage.The charge capacity of CeO2 modified TiO2 nanotube array has an increase of 30% than that of un-modified TiO2 nanotube array electrode.Compared with the electrochromic device with a TiO2 nanotube array film electrode,the CeO2 modified TiO2 nanotube counter electrode based EC device has a fast decoloration time of 0.8 s.The fast response attributes to the high effective surface area and the fast charge transportation along the nanotube walls. |
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| Keywords: | CeO2 TiO2 nanotube electrochromic counter electrode |
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