Charge recombination studies in conformally coated trifluoroacetate/TiO2 modified dye sensitized solar cells (DSSC)

被引：12
作者：
Sanchez-Diaz, Antonio [1 ]
Martinez-Ferrero, Eugenia [1 ]
Palomares, Emilio [1 ,2 ]
机构：
[1] Inst Chem Res Catalonia ICIQ, E-43007 Tarragona, Spain
[2] ICREA, E-08010 Barcelona, Spain
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2009年 / 19卷 / 30期
关键词：
NANOCRYSTALLINE TIO2 FILMS; ELECTRON-TRANSFER KINETICS; ORGANIC SENSITIZERS; PHOTOELECTROCHEMICAL CELL; RUTHENIUM SENSITIZERS; MOLECULAR-STRUCTURE; DYNAMICS; PERFORMANCE; CONVERSION; TRANSPORT;
D O I：
10.1039/b818968d
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We report the preparation of conformational coatings of the titania electrode by trifluoroacetic acid (TFA) and its influence on the efficiency of dye sensitised solar cells. We have observed that the TFA creates a hydrophobic barrier on the titania surface preventing direct contact with the electrolyte. Interestingly, when N719 is used as sensitiser, the presence of TFA accelerates the recombination reactions between photo-injected electrons at the TiO2 and the oxidised electrolyte.
引用
收藏
页码：5381 / 5387
页数：7
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