Structural, optical and electrical studies on spray deposited highly oriented ZnO films

Thin films of Zinc oxide ZnO.have been prepared on glass substrates by spray pyrolysis techniques using 0.025 M aqueous solution of Zinc acetate. X-ray diffraction XRD.reveals that the films are polycrystalline in nature having hexagonal wurtzite type crystal structure. The room temperature resistivity is of the order of 10y1 V cm. Estimated band gap energy from optical absorption data is around 3.27 eV. Thermoemf measurements show that films are of n-type. q2000 Elsevier Science B.V. All rights reserved