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Dye-sensitized solar cell with a titanium-oxide-modified carbon nanotube transparent electrode
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10.1063/1.3610488
Abstract
Transparent and conductive carbon-based materials are promising for window electrodes in solid-state optoelectronic devices. However, the catalytic activity to redox reaction limits their application as a working electrode in a liquid-type dye-sensitized solar cell(DSSC). In this letter, we propose and demonstrate a transparent carbon nanotubes(CNTs)film as the working electrode in a DSSC containing iodide/triiodide redox couples. This implementation is realized by inhibiting the charge-transfer kinetics at CNT/redox solution interface with an aid of thin titanium oxide film that facilitates the unidirectional flow of electrons in the cell without sacrificing the electrical and optical properties of CNT.
© 2011 American Institute of Physics
Received Sun Apr 24 00:00:00 UTC 2011
Accepted Tue Jun 14 00:00:00 UTC 2011
Published online Fri Jul 15 00:00:00 UTC 2011
Acknowledgments:
This work was supported by Academic Research Fund (RGM 44/06) of Nanyang Technological University and the National Research Foundation (Grant Nos. NRF-RF-2009-09 and NRF-CRP-4-2008-04).
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