Eur. Phys. J. Appl. Phys. 48, 20504 (2009)
https://doi.org/10.1051/epjap/2009151

Structure and optical constants of electron beam deposited zinc nitride films

¹ Physics department, Faculty of Science, Sohag University, 82524 Sohag, Egypt
² Physics department, Teachers College, King Saud University, 11148 Riyadh, KSA

Corresponding author: hussein_abdelhafez2000@yahoo.com

Received: 1 May 2009
Revised: 15 June 2009
Accepted: 15 July 2009
Published online: 22 September 2009

Abstract

Zinc nitride (ZnN) films were prepared by electron beam evaporation technique. The effect of heat treatments on the structural and optical properties of these films were studied. The as-deposited films show amorphous structure and some peaks which are related to Zn₃N₂ and ZnO can be observed for annealed films. The study of the optical gap shows that these films have direct optical band gap about 3.2 eV at temperature 350 °C. At high temperature, the ZnN films become more opaque and resistive. Other optical parameters such as refractive index, extinction coefficient and dispersion parameters were investigated as a function of annealing temperature.