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Effective Conductivity Modelling of Polycrystalline ZnO Thin Films

Published online by Cambridge University Press:  15 February 2011

M. Robles ,
J. Tagüeña-Martínez  and
J. A. Del Río
M. Robles
Affiliation:
Facultad de Ciencias, UAEMor., Av. Universidad 1001, Chamilpa 62210, Cuernavaca, Morelos, MÉXICO
J. Tagüeña-Martínez
Affiliation:
Laboratorio de Energía Solar IIM-UNAM, A.P. 34, 62580 Temixco, Morelos, MÉXICO
J. A. Del Río
Affiliation:
Laboratorio de Energía Solar IIM-UNAM, A.P. 34, 62580 Temixco, Morelos, MÉXICO
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Abstract

Chemically deposited thin films have multiple applications, in particular for low cost solar cells production. However, due to their inhomogeneous structure, it is very difficult to predict their physical properties. In this work we present a mean field approximation to model the effective electrical conductivity of the polycrystalline ZnO chemical deposited thin films. Our model considers elliptical inclusions randomly distributed in a matrix. We compare with the experimental results of two different deposition methods: spray pyrolysis [1] and successive ion layer adsorption and reaction (SILAR) [2]. Supported by the structural information of these samples, we select the elliptical geometrical parameters. We obtain a good fit of the experimental measurements with our calculation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 403: Symposium I – Polycrystalline Thin Films: Structure, Texture, Properties and Applications II , 1995 , 447
Copyright
Copyright © Materials Research Society 1996

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