Optical and electronic properties of transparent conducting Ta:TiO₂thin and ultra-thin films: The effect of doping and thickness

The development of low-dimensional transparent conducting systems is nowadays gaining interest in view of novel optoelectronic applications. In this paper, we investigate the evolution of optical and electronic properties of Ta-doped TiO2 films when their thickness is decreased down to 5 nm and as a function of Ta doping (5-10 at%), and we...