Variation of carboxylate-functionalized cyanine dyes to produce efficient spectral sensitization of nanocrystalline solar cells

被引：60

作者：

Ehret, A ^{[1
]}

Stuhl, L ^{[1
]}

Spitler, MT ^{[1
]}

机构：

[1] ChemMotif Inc, Concord, MA 01742 USA

来源：

ELECTROCHIMICA ACTA | 2000年 / 45卷 / 28期

关键词：

titanium dioxide; cyanine dyes; nanocrystalline solar cells;

D O I：

10.1016/S0013-4686(00)00606-X

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The sensitizing properties of cyanine dyes in dye-sensitized nanocrystalline TiO2 solar cells are shown to be controlled by the character of the carboxyl functions used to attach the molecules to the surface. These tether functions affect the degree of aggregation of the subject cyanine dyes attached to TiO2 as well as the short circuit photocurrents they produce in these solar cells. Use of two carbons, acetic acid linkages, on the dye results in performance in a sensitized solar cell comparable with a control ruthenium complex, in contrast to the greatly diminished performance of dyes with longer, methylbenzoic acid linkages. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：4553 / 4557

页数：5

共 12 条

[1] Photosensitization of TiO2 by [FeII(2,2′-bipyridine-4,4′-dicarboxylic acid)2(CN)2]:: Band selective electron injection from ultra-short-lived excited states [J].