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Advances in Materials Science and Engineering
Volume 2017, Article ID 7905343, 8 pages
https://doi.org/10.1155/2017/7905343
Research Article

Novel Evaporation Process for Deposition of Kesterite Thin Films Synthesized by Solvothermal Method

Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Complejo Industrial Chihuahua, 31136 Chihuahua, CHIH, Mexico

Correspondence should be addressed to A. Aguilar Elguezabal; xm.ude.vamic@raliuga.oderfla

Received 30 June 2017; Revised 5 October 2017; Accepted 16 October 2017; Published 17 December 2017

Academic Editor: Germà Garcia-Belmonte

Copyright © 2017 J. A. Estrada-Ayub et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Kesterite, a quaternary compound of Cu2ZnSnS4, is a promising option as a material absorber to reduce the cost of photovoltaic solar cells. The solvothermal method is a way to synthesize nanoparticles of this material. In this work, once synthesized, particles were deposited on a substrate through evaporation, and their morphological, structural, and optical properties were studied. Results show that changes of precursor ratios during solvothermal synthesis result in a modification of particle morphology but not on its size. The deposition of already synthesized kesterite through evaporation preserves kesterite structure and permits the formation of a homogenous film on a substrate. Optical reflectance and transmittance measurements allowed estimating the band-gap energy between 1.41 and 1.46 eV for representative samples, which is near the optimum for the absorber material.