Vol. 2, Issue 2, Part A (2020)

In the present investigations, CBD technique was used to deposit ZnO thin film with HMTA as a complexing agent and Zn(NO3)2.6H2O as a source of Zn ions on glass substrates. The XRD pattern confirmed the presence of nano crystalline thin film with a preferential (002)-orientation. The sample was characterized for surface morphology by scanning electron microscope (SEM). Elemental phase composition of as deposited film was analyzed using energy dispersive X-ray spectroscopy (EDX) which confirmed the presence of Zn and O2 without impurities. Transmittance was observed to be 87% in the visible region. Optical parameters like absorption coefficient, extinction coefficient, refractive index and dielectric constant were calculated. The study of Photoluminescence spectra revealed a near band edge strong UV emission peak, centered at 385nm and a week broad band in visible region.