Recently metal oxide thin films are extensively investigated because of their potential applications in solar energy conversion. In the present paper, Transparent conducting antimony doped tin oxide (Sb: SnO2) thin films have been deposited by spray pyrolysis technique at various antimony doping concentrations from non-aqueous solvent Propan-2-ol. XRD studies show that all films are polycrystalline with tetragonal crystal structure. The crystallite size observed is in the range 29-37 nm for various Sb doping concentrations. The surface morphology of Sb: SnO2 thin film is spherical with the continuous distribution of grains. The average transmittance of the undoped and Sb: SnO2 thin films, measured in the 450-850 nm wavelength is ranging between 70 and 95%. The best results are obtained at 1.5 wt.% Sb doping concentration, which are direct band gap of 3.82 eV, minimum sheet resistance of 5.7 Omega/cm(2), lowest resistivity of 3.76 x 10(-4) U-cm, carrier concentration and mobility of 4.46 x 10(19) cm(-3) and 372 cm(2) V-1 s(-1), respectively. (C) 2015 Elsevier B.V. All rights reserved.