Effect of Incident Photon Energy on the Optical Conductivity and Carrier Concentration of the Thermally Evaporated ZnO:Al Thin Film


All doped ZnO thin film was prepared by thermal vacuum evaporation technique. The effect of incident photon energy on the optical (carrier concentration and conductivity ) of the prepared sample , depending on the transmission, absorption and extinction coefficient . Sharply increasing of carrier concentration and conductivity was recorded when the incident energy increased nearly the band gap region depending on the high absorption