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Title:
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A solid-state dye-sensitized solar cell fabricated with pressure-treated P25-TiO2 and CuSCN: analysis of pore filling and IV characteristics
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Author(s):
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Published by:
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Publication date:
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ECN
Solar Energy
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1-1-2003
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ECN report number:
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Document type:
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ECN-RX--03-005
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Article (scientific)
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Number of pages:
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7
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Published in: Chemistry of Materials (American Chemical Society), , 2002, Vol.14, p.5023-5029.
Abstract:
Solid-state dye-sensitized photovoltaic cells have been fabricated withTiO2 as the electron conductor and CuSCN as the hole conductor. The
cells show photocurrents of approximate to8 mA/cm(2), voltages of similar
to600 mV, and energy efficiencies of approximate to2% at 1 sun. The
CuSCN was deposited into the pores of the nanoparticulate TiO2/dye film
from dilute solution in propylsulfide. The degree of pore filling achieved
is near 100% for TiO2 films <2-mum thick and falls to approximate to65%
for films near 6 mum. The final drying step after the CuSCN deposition
is shown to be critical; drying in vacuum or argon is required for photocurrents
above 2 mA/cm(2). The photocurrent IVs of these cells are fit to a single
diode equation and the results are discussed and compared to those for
equivalent photoelectrochemical cells, and similar solid cells composed
of ZnO/dye/CuSCN.
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