Dye-sensitized solid-state solar cells made from magnesiumoxide-coated nanocrystalline titanium dioxide films: enhancement of the efficiency

Dye-sensitized solid-state solar cells have low energy and quantum-conversion efficiencies because of the high recombination rate at the n-type semiconductor/dye/p-type semiconductor interfaces. It is found that the efficiency of dye-sensitized solid-state solar cells with nanocrystalline TiO 2 as t...

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Published inJournal of photochemistry and photobiology. A, Chemistry. Vol. 164; no. 1; pp. 183 - 185
Main Authors Kumara, G.R.A, Okuya, M, Murakami, K, Kaneko, S, Jayaweera, V.V, Tennakone, K
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2004
Subjects
Dye-sensitization
Nanocrystalline titanium dioxide film
Photoelectrochemical solar cell
Recombination
Solid-state cell
Dye-sensitization
Recombination
Photoelectrochemical solar cell
Nanocrystalline titanium dioxide film
Solid-state cell
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Summary:Dye-sensitized solid-state solar cells have low energy and quantum-conversion efficiencies because of the high recombination rate at the n-type semiconductor/dye/p-type semiconductor interfaces. It is found that the efficiency of dye-sensitized solid-state solar cells with nanocrystalline TiO 2 as the n-type material and CuI as the p-type material can be greatly enhanced by the deposition of an ultrathin layer of MgO on the TiO 2 crystallites. Mechanism involved is explained.
ISSN:1010-6030
1873-2666
DOI:10.1016/j.jphotochem.2003.11.020