Structural and optical properties of Cu2SnS3 sprayed thin films

This paper reports the successful deposition of Cu2SnS3 thin films obtained on Pyrex glass substrates using a sulfur annealing at 550 degrees C from a superposition of SnS2 and CuS sprayed thin films, Cu2SnS3 thin films crystallize in the cubic structure and the crystallites exhibit preferential (111) orientation of the grains. Optical measurements show that Cu2SnS3 thin films prepared under such conditions have a direct band gap of about 115 eV. (C) 2008 Elsevier B.V. All rights reserved.