Novel cyanine dyes with different methine chains as sensitizers for nanocrystalline solar cell

被引：60

作者：

Chen, XY

Guo, JH

Peng, XJ ^{[1
]}

Guo, M

Xu, YQ

Shi, L

Liang, CL

Wang, L

Gao, YL

Sun, SG

Cai, SM

机构：

[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

[3] China W Normal Univ, Dept Chem, Nanchong 637002, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2005年 / 171卷 / 03期

基金：

中国国家自然科学基金;

关键词：

TiO2 nanocrystalline electrode; photoelectric conversion; dye-sensitized solar cell; squarylium dye; cyanine dye;

D O I：

10.1016/j.jphotochem.2004.10.016

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：

Novel cyanine dyes (Sqb and Cyb3) with carboxylbenzyl group and different methine chains as solar cell sensitizers were synthesized and the photoelectrochemical behaviors of the TiO2 nanocrystalline electrode sensitized by them were investigated. The results show that L,, (2.76 mA/cm(2)), monochromatic incident photon-to-current conversion efficiency (IPCE) (46%) and eta (1.7%) of TiO2 nanocrystalline solar cell sensitized by Sqb were higher than that of TiO2 nanocrystalline solar cell sensitized by Cyb3 when TiO2 nanostructured porous film was 6.5 mu m thick and was sensitized for 6 h and 4 h, respectively. The excited state level of these dyes matches the conductive band edge of TiO2 nanoparticles. Therefore, the sensitization of the dyes can increase the photocurrent density of TiO2 nanocrystalline electrode. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：231 / 236

页数：6

共 16 条

[1]

Chen X, 1996, CHEM J CHINESE U, V17, P1613

[2] LIGHT-INDUCED REDOX REACTIONS IN NANOCRYSTALLINE SYSTEMS [J].