期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 157, 期 12, 页码 B1831-B1837出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3500367
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资金
- Academy of Finland [128445]
- Spanish Ministry of Science and Innovation
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.
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