In this work, the dispersion mechanisms affecting the electric transport in CuIn(1-x)Ga(x)Se(2) (CIGS) thin films grown by a chemical reaction of the precursor species, which are evaporated sequentially in two and three-stage processes are analyzed. It was found, through conductivity and Hall coefficient measurements carried out as functions of temperature, that the electrical conductivity of the CuIn(1-x)Ga(x)Se(2) films is affected by the transport of free carriers in extended states of the conduction band as well as for variable range hopping transport mechanisms, each one predominating in a different temperature range. (C) 2009 Elsevier B.V. All rights reserved