title: Effect of In doping on the properties and antibacterial activity of ZnO films prepared by spray pyrolysis.
abstract: Pure and In-doped ZnO thin films were deposited onto glass substrates by spray pyrolysis technique. XRD results showed that all films were polycrystalline in nature with the wurzite structure. A change in preferential orientation from (002) to (101) plane was observed with increase in content of Indium. A reduce in crystallite size was observed with increase of In content. The small sized grains with the porous nature of the film was observed from SEM analysis. AFM study depicted polycrystalline nature and uniformly distributed grains with small pores in the doped film. A decrease in band gap was noticed with increase in In content. The absence of green emission in PL spectra indicated the decreased oxygen defects. The decrease in the resistivity with increase of Hall mobility was noted for the doped film. A better antibacterial activity was observed against Staphylococcus aureus by doped ZnO thin film.
authors.affiliation: Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India.
authors.forename: C
authors.initials: C
authors.lastname: Manoharan
authors.affiliation: Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India. Electronic address: gpavithra7@gmail.com.
authors.forename: G
authors.initials: G
authors.lastname: Pavithra
authors.affiliation: Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India.
authors.forename: S
authors.initials: S
authors.lastname: Dhanapandian
authors.affiliation: Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India.
authors.forename: P
authors.initials: P
authors.lastname: Dhamodharan
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D003460:Crystallization; D004560:Electricity; D007204:Indium / Q000737:chemistry*; D049449:Luminescence; D008826:Microbial Sensitivity Tests; D018625:Microscopy, Atomic Force; D012031:Refractometry; D013696:Temperature; D014961:X-Ray Diffraction; D015034:Zinc Oxide / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D007204:Indium; D015034:Zinc Oxide
keywords: Antibacterial activity; Indium doped ZnO; Spray pyrolysis technique; Thin films