On optical properties of phosphate glass thin films

The present work is focused on obtaining sol-gel thin films belonging to ZnO-P2O5 system by using zinc acetate dehydrate; diethanol amine and orthophosphoric acid. It was confirmed by scanning electron microscopy that ZnO-P2O5 thin films are homogeneous. The X-ray diffraction patterns indicated that the binary structure system is amorphous. FTIR (Fourier transform infrared spectroscopy) aimed at investigating the structural features of zinc phosphate network; and the synthesized films exhibited the UV transmittance at around 85%with the estimated direct band gap energy of 3.5 eV.