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Applied Surface Science, Vol.257, No.11, 5121-5124, 2011
Effect of different annealing temperature on Sb-doped ZnO thin films prepared by pulsed laser deposition on sapphire substrates
Influence of annealing temperature on the properties of Sb-doped ZnO thin films were studied. Hall measurement results indicated that the Sb-doped ZnO annealed at 950 degrees C was p-type conductivity. X-ray diffraction (XRD) results indicated that the Sb-doped ZnO thin films prepared at the experiments are high c-axis oriented. It was worth noting that p-type sample had the worst crystallinity. The measurements of low-temperature photoluminescence (PL) spectra indicate that the sample annealed at the temperatures of 950 degrees C showed strong acceptor-bound exciton (A(0)X) emission, and confirmed that it is related to Sb-doping by comparing with the undoped ZnO low-temperature PL spectrum. (C) 2011 Elsevier B.V. All rights reserved.
Keywords:Sb-doped ZnO;Pulsed laser deposition;Hall-effect-measurement;X-ray diffraction;Scan electronic microscopy;Photoluminescence spectra