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Proceedings Paper

Verification of the current voltage characteristics and efficiencies in dye-sensitized TiO2 solar cells
Author(s): Greg P. Smestad
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Paper Abstract

Recently, a paper was published by the Lausanne Group headed by Dr. M. Gratzel which claimed to obtain a low cost 7% efficient photoelectrochemical solar cell from a Ru carboxylated bipyridyl charge transfer dye adsorbed on the very rough surface of a colloidal TiO2 film. In the current paper, a verification of this result is presented as well as the requirements for efficient collection in this new type of cell. Measurements are reported in simulated and natural sunlight which confirm that the efficiency is indeed in the range previously reported. In addition, a comparison will be made with detailed balance type calculations which support that the cell operates within the limits defined by thermodynamics and the optical absorption of the adsorbed dye. A discussion is made as to the use of the sensitization concept with other materials as well as to the basic economics of such a device.

Paper Details

Date Published: 22 October 1993
PDF: 12 pages
Proc. SPIE 2017, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII, (22 October 1993); doi: 10.1117/12.161963
Show Author Affiliations
Greg P. Smestad, Paul Scherrer Institut (United States)

Published in SPIE Proceedings Vol. 2017:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII
Carl M. Lampert, Editor(s)

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