New Organic Sensitizer for Stable Dye-Sensitized Solar Cells with Solvent-Free Ionic Liquid Electrolytes

被引：78

作者：

Shi, Dong ^{[1
]}

Cao, Yiming ^{[1
]}

Pootrakulchote, Nuttapol ^{[2
]}

Yi, Zhihui ^{[1
]}

Xu, Mingfei ^{[1
]}

Zakeeruddin, Shaik M. ^{[2
]}

Graetzel, Michael ^{[2
]}

Wang, Peng ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

[2] Swiss Fed Inst Technol, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 44期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/jp807191w

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 a high molar extinction coefficient metal-free sensitizer composed of a triarylamine donor in combination with the 2-(2,2'-bithiophen-5-yl)acrylonitrile conjugation unit and cyanoacrylic acid as an acceptor. In conjugation with a volatile acetonitrile-based electrolyte or a solvent-free ionic liquid electrolyte, we have fabricated efficient dye-sensitized solar cells showing a corresponding 7.5% or 6.1% efficiency measured under the air mass 1.5 global sunlight. The ionic liquid cell exhibits excellent stability during a 1000 h accelerated test under the light-soaking and thermal dual stress. Intensity-modulated photocurrent and photovolatge spectroscopies were employed along with the transient photoelectrical decay measurements to detail the electron transport in the mesoporous titania films filled with these two electrolytes.

引用

页码：17478 / 17485

页数：8

共 40 条

[1] High-performance dye-sensitized solar cells based on solvent-free electrolytes produced from eutectic melts [J].