中文摘要：

用溶胶-凝胶法在染料敏化太阳能电池的FTO导电玻璃与多孔薄膜之间制备了一层TiO2致密膜,采用AFM、XRD、UV-Vis以及接触角测定仪等对其进行表征。结果表明,制备的薄膜结构致密、透明,晶粒细小均匀;水接触角从FTO表面的54.425°下降到致密膜表面的33.763°,有利印刷浆料润湿结合;对比实验证实了TiO2致密膜的引入,隔离了液体电解质与FTO导电玻璃的直接接触,减小电池的暗电流,电池的电流密度及光电转化效率分别提高了17.7%和22.4%。

英文摘要：

The TiO2 density film was prepared by the sol-gel method between the Fluorine Tin Oxide（FTO） Glass and multiporous film in the DSSC and characterized by AFM, XRD, UV-Vis and contact angle measuring instrument. The results showed that the grain size of the TiO2 was fine, the film was dense and transparent, the water contact angle decreased from 54. 425% to 33. 763% on FTO. Compared to the DSSC with no coating TiO2 density film, the introduction of the density film avoided the contact of electrolyte with FTO directly which decreased the dark current, the photoelectric conversion efficiency and short-circuit photocurrent increased by 17.7%, 22.4%, respectively.