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Molar ratio S/In effect on properties of sprayed In2S3 films

Published online by Cambridge University Press:  07 August 2013

Nourredine Bouguila ,
Abdelmajid Timoumi ,
Hassen Bouzouita ,
Emmanuelle Lacaze ,
Habib Bouchriha  and
Bahri Rezig
Nourredine Bouguila
Affiliation:
Laboratoire de Physique des Matériaux et des Nanomatériaux Appliquée à l’Environnement, Université de Gabès, Faculté des Sciences de Gabès, Cité Erriadh Manara Zrig, 6072 Gabès, Tunisia
Abdelmajid Timoumi*
Affiliation:
LPMS, Département de Génie Industriel, Ecole Nationale d’Ingénieurs de Tunis, PB 37, Le Belvédère 1002, Tunis, Tunisia Department of Physics, College of Applied Science, Umm Al-Qura University, Makka El Mukarrama, Saudi Arabia
Hassen Bouzouita
Affiliation:
LPMS, Département de Génie Industriel, Ecole Nationale d’Ingénieurs de Tunis, PB 37, Le Belvédère 1002, Tunis, Tunisia
Emmanuelle Lacaze
Affiliation:
GPS, Tour 23, 2 Place Jussieu, 75251 Paris Cedex 05, France
Habib Bouchriha
Affiliation:
LPMC, Faculté des Sciences de Tunis, Le Belvédère 1060, Tunis, Tunisia
Bahri Rezig
Affiliation:
LPMS, Département de Génie Industriel, Ecole Nationale d’Ingénieurs de Tunis, PB 37, Le Belvédère 1002, Tunis, Tunisia
*
a e-mail: timoumiabdelmajid@yahoo.fr
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Abstract

We have studied the structural, morphological and optical properties of In2S3 layers deposited on glass substrate by the spray pyrolysis method with the molar ratio S/In varies from 1 to 4. The substrate temperature was maintained at 613 K. The characteristics of these films have been determined by X-ray diffraction (XRD), optical absorption-transmission and atomic force microscopy (AFM). Their structure is strongly dependent on the molar ratio. The deposit is mainly constituted by the β phase towards (4 0 0) direction. No characteristic peaks were observed for other impurities such as In2O3, S or In2(OH)3. The best crystallinity and surface morphology are obtained at molar ratio equal to 2.5. At this ratio, the crystallites coalesce and the local roughness is of the order of 1 nm. Optical transmission of 80% has been achieved in the visible spectrum. In2S3 band gap energy reached 2.63 eV from layers with x = 2 and deposited at Ts = 613 K.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 63 , Issue 2 , August 2013 , 20301
Copyright
© EDP Sciences, 2013

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