Study of structural, morphological and optical properties of S and Cu co-doped SnO2 nanostructured thin films prepared by spray pyrolysis

M. M. Bagheri-Mohagheghi; M. Adelifard; S. Namavar

doi:10.3139/146.111120

Published by De Gruyter November 17, 2014

Study of structural, morphological and optical properties of S and Cu co-doped SnO₂ nanostructured thin films prepared by spray pyrolysis

M. M. Bagheri-Mohagheghi , M. Adelifard and S. Namavar

From the journal International Journal of Materials Research

https://doi.org/10.3139/146.111120

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Abstract

We have established the effect of copper dopant concentration (Cu/Sn = 0–30 at.%) on the structural, morphological and optical properties of SnO₂ : S films grown on glass substrate using a spray pyrolysis technique. According to the experimental evidence and data analysis, we found that the polycrystalline layers in undoped condition mainly consist of mixed phases such as SnS₂ and SnO₂, whilst in doped ones, Cu₂SnS₃ and Cu₄SnS₄ phases are dominant. With increasing Cu concentration, a decrease in the grain size with a change in the shape of the grains is observed. Optical measurement analysis showed that these films have a direct band gap energy of about 2.98–3.59 eV.

Keywords: Tin oxide; Copper and sulfide doping; Thin films; Spray pyrolysis; Nanostructures

* Dr. Mehdi Adelifard, School of Physics, Damghan University, Damghan, Iran. Tel.: +98 2335235313, Fax: +98 2335235313, E-mail: adelifard@du.ac.ir

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Received: 2014-01-24

Accepted: 2014-05-12

Published Online: 2014-11-17

Published in Print: 2014-11-10

Study of structural, morphological and optical properties of S and Cu co-doped SnO₂ nanostructured thin films prepared by spray pyrolysis

Abstract

References

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