Ab initio study on the structural, electronic, optical and electrical properties of Mo-, Nb- and Ta-doped rutile SnO2
文摘
We show the effect of molybdenum-, niobium- and tantalum-dopants on the structural, electronic, optical and electrical of tin dioxide by using first-principle study within the full-potential linearized augmented plane wave method and semiclassical Boltzmann transport theory. The results show that the doped tin dioxide systems have negative formation energies. The dopants introduce shallow donor states around the conduction band minimum, leading to red-shift of optical transparency in the case of molybdenum- and niobium-doped tin dioxide, and blue-shift in the case of tantalum doped tin dioxide. The electrical conductivity is remarkably improved after doping, while the tantalum doped tin oxide exhibits the highest value.