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Electrical and Photoelectrical Properties of Nanostructured ZnO Thin Films for Photovoltaic Applications

Published online by Cambridge University Press:  01 February 2011

Stefan Antohe
Affiliation:
[email protected], University of Bucharest, Faculty of Physics, 405 Atomistilor, Magurele-Ilfov, 077125, Romania, +4021 4574535, +4021 4574535
Cezar Tazlaoanu
Affiliation:
[email protected], University of Bucharest, Faculty of Physics, 405 Atomistilor, Magurele-Ilfov, 077125, Romania
Gabriel Socol
Affiliation:
[email protected], National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor, Magurele-Ilfov, 077125, Romania
Larisa Magherusan
Affiliation:
[email protected], University of Bucharest, Faculty of Physics, 405 Atomistilor, Magurele-Ilfov, 077125, Romania
Ionut Enculescu
Affiliation:
[email protected], National Institute for Materials Physics, 105-bis, Atomistilor, Magurele-Ilfov, 077125, Romania
Dan Bazavan
Affiliation:
[email protected], University of Bucharest, Faculty of Physics, 405 Atomistilor, Magurele-Ilfov, 077125, Romania
Ion Mihailescu
Affiliation:
[email protected], National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor, Magurele-Ilfov, 077125, Romania
Stefan Antohe
Affiliation:
[email protected], University of Bucharest, Faculty of Physics, 405 Atomistilor, Magurele-Ilfov, 077125, Romania
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Abstract

Structural, electrical and optical characterizations of nanostructured ZnO thin films used as photosensitized electrodes in photovoltaic cells applications are reported. Nanostructured ZnO thin films were deposited on optical glass substrates by pulsed-laser deposition (PLD), their structure and morphology being optimized for photovoltaic applications. Structural analysis of the samples by X-ray diffraction revealed that the films consist of a hexagonal-close-packed wurtzite type phase ZnO, (001) preferentially oriented in the growth direction. The ZnO films are highly transparent in visible region of solar spectrum, and exhibit electrical resistivities in the range 10-4 - 10-2Ω.m

Type
Research Article
Copyright
Copyright © Materials Research Society 2007

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