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ZnO layers prepared by spray pyrolysis*

Published online by Cambridge University Press:  15 February 1998

C. Messaoudi
Affiliation:
Faculté des Sciences et Techniques, Département de Physique, BP 509, Errachidia, Maroc Faculté des Sciences, Laboratoire de Physique des Matériaux, BP 1014, Rabat, Maroc
S Abd-lefdil
Affiliation:
Faculté des Sciences, Laboratoire de Physique des Matériaux, BP 1014, Rabat, Maroc
D. Sayah
Affiliation:
Faculté des Sciences, Laboratoire de Physique des Matériaux, BP 1014, Rabat, Maroc
M. Cadene
Affiliation:
Laboratoire des Matériaux Photoconducteurs, Université de Montpellier II, 34095 Montpellier, France
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Abstract

Highly transparent undoped and indium doped ZnO thin films have been grown on glass substrates by using the spray pyrolysis process. Conditions of preparation have been optimized to get good quality and reproducible films with required properties. Polycrystalline films with an hexagonal Wurtzite-type structure were easily obtained under the optimum spraying conditions. Both of samples have shown high transmission coefficient in the visible and infrared wavelength range with sharp absorption edge around 380 nm which closely corresponds to the intrinsic band-gap of ZnO (3.2 eV). Orientation and crystallites size were remarkably modified by deposition temperature and indium doping.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 1998

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References

* This paper was presented at the "Journées Maghrébines sur les Sciences des Matériaux" held at Hammamet the 8, 9 and 10 November 1996.