基于WO3-MoO3和TiO2/CdS复合电极的光电致变色器件
Photoelectrochromic devices based on WO3-MoO3 and TiO2/CdS composite electrodes
郑刘梦晗 1夏团结 2杨继凯 1彭兵兵1
作者信息
- 1. 长春理工大学 重庆研究院,重庆 400000
- 2. 上海航天控制技术研究所,上海 201100
- 折叠
摘要
以导电玻璃为基底,通过水热法制备WO3-MoO3 薄膜,采用循环伏安、计时电量、计时电流、电化学阻抗测试方法对其电致变色性能进行测试;通过水热法结合连续离子层沉积法制备了TiO2/CdS复合薄膜,采用线性循环伏安、瞬态光电流、透过率测试方法对其光电转换性能进行了测试.最后将性能最好的WO3-MoO3薄膜和TiO2/CdS复合薄膜分别作为光电致变色器件的变色阴极、光阳极构建WO3/MoO3-TiO2/CdS光电致变色器件.结果表明,与WO3-TiO2/CdS器件相比,WO3/MoO3-TiO2/CdS光电致变色器件具有较大的光学调制范围(630 nm处为41.99%)、更高的着色效率(35.787 cm2/C),且光电转换效率(0.126%)为WO3-TiO2/CdS器件(0.053%)的2.38倍.
Abstract
WO3-MoO3 thin films were prepared by hydrothermal method using conductive glass as substrate,and their electrochromic properties were analyzed by cyclic voltammetry,chronocoulometry,chronoamperometry and electrochemical impedance spectroscopy.Meanwhile,TiO2/CdS composite thin films were synthesized by hydrothermal method combined with continuous ion layer deposition,and their photoelectric conversion properties were tested by linear cyclic voltammetry,transient photocurrent and transmittance.WO3-MoO3 thin film and TiO2/CdS composite thin film with the best performance were then used as color-changing cathode and photoanode respectively to construct WO3/MoO3-TiO2/CdS photoelectrochromic device.The results showed that,compared with WO3-TiO2/CdS device,WO3/MoO3-TiO2/CdS photoelectrochromic device exhibited larger optical modulation range(41.99%at 630 nm),higher coloring efficiency(35.787 cm2/C),and its photoelectric conversion efficiency(0.126%)was 2.38 times that of WO3-TiO2/CdS device(0.053%).
关键词
水热法/WO3/MoO3/TiO2/光电致变色器件/功能材料Key words
hydrothermal method/WO3/MoO3/TiO2/photoelectrochromic devices/functional materials引用本文复制引用
基金项目
重庆市自然科学基金(CSTB2022NSCQ-MSX0751)
吉林省教育厅项目(JJKH20220726KJ)
吉林省科技厅项目(20200201077JC)
出版年
2024
NETL
NSTL
万方数据