The paper discusses the influence of precursor concentration on the morphology and the structure of CuSbS2 thin films obtained from aqueous solutions and used as absorber for three-dimensional (3D) solar cells. CuSbS2 films are obtained by Spray Pyrolysis Deposition, varying the precursor weight ratio (CuCl2 center dot 2H(2)O: H2NCSNH2: (CH3COO)(3)Sb) between 2.57: 1: 5.71-6.86: 1: 5.71, at 240 degrees C. The films were analyzed by XRD, I-V dark measurements and SEM. Enriching the films in antimony proved to be a control method of the films morphology and structure. (C) 2007 Elsevier B.V. All rights reserved.