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Fast electron transport in metal organic vapor deposition grown dye-sensitized ZnO nanorod solar cells
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2006 (English)In: Journal of Physical Chemistry B, ISSN 1520-6106, E-ISSN 1520-5207, Vol. 110, no 33, 16159-16161 p.Article in journal (Refereed) Published
Abstract [en]

The electron transport in dye-sensitized solar cells with a MOCVD (metal organic vapor deposition)-grown ZnO nanorod array (ZnO-N) or a mesoporous film prepared from ZnO colloids (ZnO-C) as the working electrode was compared. The electrodes were of similar thickness (2 Am) and sensitized with zinc(II) mesotetrakis(3-carboxyphenyl) porphyrin, while the electrolyte was I-/I-3-in 3-methoxypropionitrile. Electron transport in the ZnO-C cells was comparable with that found for colloidal TiO2 films (transport time similar to 10 ms) and was light intensity dependent. Electron transport in solar cells with ZnO-N electrodes was about 2 orders of magnitude faster (similar to 30 mu s). Thus, the morphology of the working ZnO electrode plays a key role for the electron transport properties.

Place, publisher, year, edition, pages
2006. Vol. 110, no 33, 16159-16161 p.
Keyword [en]
nanotips, devices, mocvd, films
URN: urn:nbn:se:kth:diva-15924DOI: 10.1021/jp062865qISI: 000239818000001ScopusID: 2-s2.0-33748522367OAI: diva2:333966
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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Hagfeldt, AndersBoschloo, Gerrit
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