Synthesis, Characterization and Antibacterial Application of ZnO Thin films

A M Wagh and N U Patil
2021 International journal of modern trends in science and technology  
The objective of this study is to synthesize ZnO nano particles in form thin film on glass substrate and study antibacterial active of such films. ZnO thin films were prepared by spray pyrolysis technique using zinc acetate and isopropyl alcohol as precursor in the temperature range 375̊C to 425̊C. The optical properties of the film were studied on UV/VIS/NIR spectrophotometer. The energy gap of the film is evaluated and it is found to be 3.31 eV. The polycrystalline nature of the ZnO film was
more » ... f the ZnO film was confirmed by structural analysis by Xray diffraction method and the grain size is determined. It is found to be 50nm. The electrical resistivity of the film was measured by four probe method at different temperatures and it is found that electrical resistivity varying in the range 103 to 104 Ω–cm. we studied the antibacterial activity of ZnO thin film against gram-negative bacteria. Escherichia coli (E- coli) were used as test micro organisms. It is found that ZnO film enhanced the significant antibacterial activity.
doi:10.46501/ijmtst0702003 fatcat:bpfzcpmvpzhkbmujsiyftnzjhq