Study of non-linear spectroscopic optical properties, electrical susceptibility and semiconducting dependence on substrate temperature for ZnO thin films prepared by Radio Frequency technique

Abstract

ZnO thin films which were prepared by radio frequency technique with different substrates temperature were investigated optically. The both of first linear optical susceptibility (χ(1)) and third order non-linear optical susceptibility (χ(3)) were determined. Moreover, other important non-liner optical parameters such as non-linear refractive index and non-linear absorption coefficient βc were determined for these studied samples. The electric susceptibility χc and relative permittivity er for these samples were calculated optically. Finally, important semiconducting parameters such as density of valence band Nv, density of conduction band Nc, free carrier concentration (Nd-Na), position of Fermi level Ef and surface electric field Es were determined for these studied samples.