由电泳沉积ZIF-67薄膜制备高效染料敏化太阳能电池对电极  

PREPARATION OF COUNTER ELECTRODE OF DYE-SENSITIZED SOLAR CELL BY THE ELECTROPHORETIC-DEPOSITED ZIF-67 THIN FILM

作　　者：石佳玉 夏畅 李莹莹 张敬波[1,2,3] SHI Jia-yu;XIA Chang;LI Ying-ying;ZHANG Jing-bo(College of Chemistry,Tianjin Normal University,Tianjin 300387,China;Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry,Tianjin 300387,China;Tianjin Key Laboratory of Structure and Performance for Functional Molecules,Tianjin 300387,China)

机构地区：[1]天津师范大学化学学院,天津300387 [2]无机-有机杂化功能材料化学教育部重点实验室,天津300387 [3]天津市功能分子结构与性能重点实验室,天津300387

出　　处：《井冈山大学学报（自然科学版）》2020年第2期23-28,共6页Journal of Jinggangshan University (Natural Science)

基　　金：国家自然科学基金项目(21273160,21975183)。

摘　　要：为了提高碳化ZIF-67薄膜制备的染料敏化太阳能对电极的光电性能,本研究通过碳化电泳沉积ZIF-67薄膜得到多孔碳电极,并进一步在多孔碳电极热分解氯铂酸得到负载铂的多孔碳复合电极。通过光电流-电压曲线、电化学阻抗谱和强度调制光电流谱等的测试,对比单独在FTO导电玻璃基底热分解氯铂酸得到的铂电极和单独碳化电泳沉积ZIF-67薄膜得到的多孔碳电极,研究了负载铂的多孔碳复合电极作为染料敏化太阳能电池对电极的光电性能。与其它两种对电极相比,以负载铂的多孔碳复合电极为对电极的染料敏化太阳能电池光电转换效率最高,因碳化ZIF-67薄膜的多孔电极具有较大的比表面积,能负载足够量的铂,从而提供更多的催化位点,具有更好的催化性能,从而使染料敏化太阳能电池的光电转换效率得到显著提升。In order to improve the photoelectric conversion efficiency of dye-sensitized solar cell based on the carbonized ZIF-67 thin film counter electrode, the porous carbon composite electrode loaded with platinum was prepared by thermal decomposition of chloroplatinic acid on the carbonized ZIF-67 thin film which was prepared by the electrophoretic deposition. Through the measurements of photocurrent-voltage curves, electrochemical impedance spectra and intensity modulated photocurrent spectra, compared with the two electrodes, the electrode prepared by thermal decomposition of chloroplatinic acid on FTO conducting glass and the carbonized ZIF-67 thin film electrode alone, the photoelectrical properties of the porous carbon with platinum composite electrode were studied. It was concluded that the photoelectric conversion efficiency of dye-sensitized solar cell based on composite porous carbon counter electrode with platinum is better than the other two electrodes. It is because the porous carbon electrode by carbonizing the ZIF-67 thin film has enough surface area to load enough platinum, which offers more catalytic sites and shows good catalytic properties, then improves the photoelectric conversion efficiency of dye-sensitized solar cells.

关 键 词：电泳沉积 金属有机框架配合物 氯铂酸热解 对电极 染料敏化太阳能电池 光电性能 

分 类 号：O646[理学—物理化学]