Photocurrents of solar cells sensitized by aggregate-forming polyenes: Enhancement due to suppression of singlet-triplet annihilation by lowering of dye concentration or light intensity

被引：31

作者：

Wang, XF

Koyama, Y

Nagae, H

Yamano, Y

Ito, M

Wada, Y

机构：

[1] Kwansei Gakuin Univ, Fac Sci & Technol, Dept Chem, Sanda 6691337, Japan

[2] Kobe City Univ Foreign Studies, Kobe, Hyogo 6512187, Japan

[3] Kobe Pharmaceut Univ, Kobe, Hyogo 6588558, Japan

[4] Osaka Univ, Grad Sch Engn, Dept Mat & Life Sci, Suita, Osaka 5650871, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 420卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2006.01.003

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：

Titania-based Gratzel-type solar cells were fabricated by the use of polyene dyes with various transition dipole moments. in the dye having the largest transition dipole among the samples, an aggregate was readily formed through dispersive interaction, and the photocurrent was increased when the dye concentration or the light intensity was lowered. This observation was ascribed to the suppression of the singlet-triplet annihilation reaction. In the dye having the smallest transition dipole, there was no sign of aggregate formation, and the photocurrent was decreased when the dye concentration or the light intensity was lowered. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：309 / 315

页数：7

共 15 条

[1] Dye-sensitized nanocrystalline TiO2 solar cells based on ruthenium(II) phenanthroline complex photosensitizers [J].