title: Physical properties of Zn doped TiO2 thin films with spray pyrolysis technique and its effects in antibacterial activity.
abstract: Zinc doped Titanium dioxide (TiO2: Zn) thin films were deposited onto glass substrates by the spray pyrolysis technique with the substrate temperature 450°C. The structural, optical, photoluminescence (PL) properties and morphological studies were investigated for the films deposited with various doping concentration (0, 2, 4, 6 and 8at.%) of zinc. The results of X-ray diffraction (XRD) had shown the presence of anatase peak with a strong orientation along (101) plane at 8at.% of Zn-doped TiO2 film. Scanning electron microscopy (SEM) study showed the uniform distribution of grains with porous nature. Atomic force microscopy (AFM) observations indicated the tetragonal shape at 8at.% of Zn-doped TiO2 with the particle size and decrease in surface roughness. The emission at 398nm was observed at the 8at.% of Zn-doped TiO2 thin film. The carrier concentration and Hall mobility was increased with doping. The antibacterial activity was highly yielded for the Zn-doped TiO2 thin films.
authors.affiliation: Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India.
authors.forename: A
authors.initials: A
authors.lastname: Arunachalam
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: C
authors.initials: C
authors.lastname: Manoharan
authors.affiliation: Centralised Instrumentation and Service Laboratory (CISL), Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India.
authors.forename: G
authors.initials: G
authors.lastname: Sivakumar
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D001412:Bacillus subtilis / Q000187:drug effects; D006358:Hot Temperature; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D014025:Titanium / Q000737:chemistry* / Q000494:pharmacology; D014961:X-Ray Diffraction; D015032:Zinc / Q000737:chemistry* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; C009495:titanium dioxide; D014025:Titanium; D015032:Zinc
keywords: Antibacterial activity; Porous nature; Sprayed nanocrystalline Zn-doped TiO(2) thin films