Single-Walled Carbon Nanotube Thin-Film Counter Electrodes for Indium Tin Oxide-Free Plastic Dye Solar Cells

被引：43

作者：

Aitola, Kerttu ^{[1
]}

Kaskela, Antti ^{[1
]}

Halme, Janne ^{[1
]}

Ruiz, Virginia ^{[1
,2
]}

Nasibulin, Albert G. ^{[1
]}

Kauppinen, Esko I. ^{[1
,3
]}

Lunda, Peter D. ^{[1
]}

机构：

[1] Aalto Univ, Dept Appl Phys, Aalto 00076, Finland

[2] CIDETEC IK4, Ctr Electrochem Technol, E-20009 Donostia San Sebastian, Spain

[3] Tech Res Ctr Finland, FI-02044 Espoo, Finland

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2010年 / 157卷 / 12期

基金：

芬兰科学院;

关键词：

LOW-COST; PERFORMANCE; SPECTROSCOPY; REDUCTION; DIFFUSION; SUBSTRATE; IMPEDANCE; BUNDLES;

D O I：

10.1149/1.3500367

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The use of a thin carbon nanotube (CNT) counter electrode (CE) on plastic in a dye solar cell (DSC) is demonstrated as an alternative to expensive indium tin oxide and platinum materials. Optically transparent, single-walled CNT films synthesized by the aerosol CVD method and dry-printed on PET plastic substrates functioned as both the catalyst and conducting layer of the DSC CE. The best charge-transfer resistances and sheet resistances for the random network-type film were around 89 Omega cm(2) and 60 Omega/square, respectively, making them suitable for low-intensity DSC applications. A solar cell efficiency of 2.5% was reached at an illumination of 8 mW/cm(2). The photocurrent generation of the cells was found to decrease when a non-purified CNT-CE was used. The electrochemical removal of iron catalyst particles from the CNT films reduced the detrimental effect and stabilized the performance of the DSC. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3500367] All rights reserved.

引用

页码：B1831 / B1837

页数：7

共 40 条

[1]

[Anonymous], 2001, ELECTROCHEMICAL METH

[2] Electrochemical reaction rates in a dye-sensitised solar cell-the iodide/tri-iodide redox system [J].