Spray coated multi-wall carbon nanotube counter electrode for tri-iodide (I3-) reduction in dye-sensitized solar cells

被引：365

作者：

Ramasamy, Easwaramoorthi ^{[1
,2
]}

Lee, Won Jae ^{[1
]}

Lee, Dong Yoon ^{[1
]}

Song, Jae Sung ^{[1
]}

机构：

[1] Korea Electrotechnol Res Inst, Adv Mat & Applicat Res Div, Chang Won 641120, South Korea

[2] Univ Sci & Technol, Taejon 305333, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 07期

关键词：

dye-sensitized solar cell; carbon nanotube; counter electrode; efficiency;

D O I：

10.1016/j.elecom.2008.05.013

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Spray coated multi-wall carbon nanotube (CNT) film on fluorine-doped tin oxide glass substrate has been investigated as a counter electrode for tri-iodide reduction in dye-sensitized solar cells. The photovoltaic parameters, in particular, the fill factor shows a strong dependency on the spraying time of multi-wall CNTs. Under one sun illumination (100 mW cm(-2), AM 1.5 G), the device shows a maximum energy conversion efficiency of 7.59%. Electrochemical impedance spectroscopy analysis reveals a decrease in the charge transfer resistance of multi-wall CNT counter electrode with increase of spraying time; leads to an improvement in the photovoltaic parameters. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1087 / 1089

页数：3

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