合成介质对PEDOT催化染料敏化太阳电池光阴极性能的影响

采用聚3,4-乙烯二氧噻吩(PEDOT)/FTO为对电极,研究了合成介质对循环伏安法电聚合制备的PEDOT/FTO对电极性能的影响。通过SEM、CV、EIS、Tafel曲线,并首次采用SECM方法对所制备的对电极的电催化性能进行了表征。结果表明:在LiClO4水溶液和1-丁基-3-甲基四氟硼酸盐离子液体(IL)中制备的光阴极具有良好的电催化性能。J-V测试曲线表明,在LiClO4水溶液和IL中制备的光阴极所组装的DSSC器件的光电转化效率分别达6.4%和6.6%,接近于同等条件下以Pt对电极构建的DSSC器件的光电转化效率。

Effect of Synthetic Medium on Performance of PEDOT-catalyzed Counter Electrodes of Dye Sensitized Solar Cells

The effect of synthetic medium on performance of PEDOT-catalyzed counter electrodes of dye sensitized solar cells was investigated. The electrocatalytic performance of the prepared electrode was characterized by SEM, CV, EIS, Tafel and SECM method for the first time. The results show that the counter electrodes prepared in LiClO₄ aqueous solution and 1-butyl-3-methyl tetrafluoroborate ionic liquid have good electrocatalytic performance. J-V curves show that the photoelectric conversion efficiencies of the DSSC devices prepared with LiClO₄ aqueous solution and 1-butyl-3-methyl tetrafluoroborate ionic liquid are 6.4% and 6.6%, respectively,which close to the photoelectric conversion efficiency of the DSSC device fabricated with Pt counter electrode under the same conditions.