Dipolar organic pyridyl dyes for dye-sensitized solar cell applications

被引：25

作者：

Chou, Hsien-Hsin ^{[1
]}

Hsu, Chih-Yu ^{[1
]}

Hsu, Ying-Chang ^{[1
]}

Lin, Yu-Sheng ^{[2
]}

Lin, Jiann T. ^{[1
]}

Tsai, Chiitang ^{[2
]}

机构：

[1] Acad Sinica, Inst Chem, Taipei 115, Taiwan

[2] Chinese Culture Univ, Dept Chem, Taipei 320, Taiwan

来源：

TETRAHEDRON | 2012年 / 68卷 / 02期

关键词：

Dye-sensitized solar cells; Pyridine; Dipolar compounds; Metal-free dyes; NANOCRYSTALLINE TIO2 FILMS; HIGHLY-EFFICIENT; CONVERSION-EFFICIENCY; COUMARIN DYES; CHARGE RECOMBINATION; ENERGY-CONVERSION; EXCITED-STATES; PERFORMANCE; DESIGN; THIOPHENE;

D O I：

10.1016/j.tet.2011.10.038

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

New dipolar dyes containing arylamine as the electron donor, 2-cyanoacrylic acid as the acceptor, and a conjugated spacer with incorporation of 2,5-pyridyl entity have been synthesized. Photophysical and electrochemical measurements, and theoretical computation were carried on these dyes. The solar cell devices using these dyes as the sensitizers exhibited light-to-electricity efficiencies in the range of 4.28-5.27%, which reaches 60-72% of N719-based device fabricated and measured under similar conditions. Better DSSC performance can be achieved with the dye where pyridine group is attached to thienyl or fluorenyl group because of favorable resonance energy and/or coplanarity for more effective charge transfer. (C) 2011 Elsevier Ltd. All rights reserved.

引用

收藏

页码：767 / 773

页数：7

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