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Solid state dye-sensitized solar cells prepared by infiltrating a molten hole conductor into a mesoporous film at a temperature below 150 degrees C
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2011 (English)In: Synthetic metals, ISSN 0379-6779, E-ISSN 1879-3290, Vol. 161, no 21-22, 2280-2283 p.Article in journal (Refereed) Published
Abstract [en]

Infiltration of a molten hole conductor in a mesoporous film at an elevated temperature exhibits good wetting performance and the procedure is therefore suitable as part of the preparation method for solid state dye-sensitized solar cells. Herein, we present a system prepared by infiltrating 4-(diethylamino)benzaldehyde-1,1)-diphenyl-hydrazone in its molten form at a temperature below 150 degrees C. The system displays a maximum photon-to-current conversion efficiency of about 35%, a value corresponding to an increase of about 5 times in comparison with a previously published system prepared by infiltrating a molten hole-conductor at a temperature exceeding 250 degrees C. By means of comparing charge transport and recombination with the results measured for a liquid analogue, we conclude that whereas the transport rates are similar, recombination is significantly more rapid in the solid-state device.

Place, publisher, year, edition, pages
2011. Vol. 161, no 21-22, 2280-2283 p.
Keyword [en]
Dye, Solar cell, Solid-state, Transport, Recombination, Infiltration, Hole conductor
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-55260DOI: 10.1016/j.synthmet.2011.08.033ISI: 000297878100015Scopus ID: 2-s2.0-80055079342OAI: oai:DiVA.org:kth-55260DiVA: diva2:471440
Funder
Swedish Research Council
Note
QC 20120102Available from: 2012-01-02 Created: 2012-01-02 Last updated: 2017-12-08Bibliographically approved

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Sun, Licheng

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