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Electrical and Morphological Characterization of Electrochemically Deposited ZnO/dye Hybrid Films

Published online by Cambridge University Press:  03 September 2012

J. Reemts ,
J. Parisi  and
A. Kittel
J. Reemts
Affiliation:
Energy and Semiconductor Research Laboratory, Department of PhysicsUniversity of Oldenburg, D-26111 Oldenburg, Germany
J. Parisi
Affiliation:
Energy and Semiconductor Research Laboratory, Department of PhysicsUniversity of Oldenburg, D-26111 Oldenburg, Germany
A. Kittel
Affiliation:
Energy and Semiconductor Research Laboratory, Department of PhysicsUniversity of Oldenburg, D-26111 Oldenburg, Germany
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Abstract

Dye sensitized solar cells of the Graetzel type are usually fabricated with TiO2 covered with dye after its synthesis as one electrode. ZnO is, aside from TiO2, a promising alternative semiconducting material for solar energy conversion due to its enhanced surface area and a strong attachment of non-aggregated sensitizer dyes. We investigate ZnO/dye electrodes where the dye is already added during the electro-deposition process of the ZnO. We examine the influence of the dye species and the dye concentration on the surface morphology by means of atomic force and scanning electron microscopy imaging. The electrical properties of the films are characterized by means of current-voltage measurements. In order to study the integral properties of the charge carrier transport in the lateral direction of the film we characterized ZnO thin films electro-deposited across an insulating gap between two microstructured electrodes made of gold.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 822: Symposium S – Nanostructured Materials in Alternative Energy Devices , 2004 , S3.18
Copyright
Copyright © Materials Research Society 2004

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References

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