Ga-doped ZnO(ZnO:Ga)films are deposited on glass substrates by DC magnetron sputtering using facing zinc oxide targets at room temperature and in argon atmosphere.The structural,electrical and optical properties of the ZnO:Ga films with various thickness are studied in detail.The crystal structure of the ZnO:Ga films is hexagonal wurtzite.The orientation for all the obtained films is along the c-axis perpendicular to the substrate.It is observed that with the increase in film thickness,the crystallite sizes...