Anandh, Ba and Sakthivel, R and RAJAMANICKAM, A T and Shankar Ganesh, A (2021) Impact of Aluminium on ZnO Thin Films for Antimicrobial Activity. Asian Journal of Chemistry. pp. 1-16.

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Abstract

Thin films of pure Zinc Oxide (ZnO) and Aluminium (Al) doped ZnO were deposited by two step SILAR technique. Pure and Al (1%, 3%, 5%) doped ZnO thin film’s structural, morphology and optical properties were analyzed. Diffraction peaks of the all the samples were indexed to hexagonal wurtizite structure. The crystallite size, lattice parameters, dislocation density and microstrain were calculated for the prepared thin films. Morphology study using FESEM shows spherical shaped structure of pure ZnO and hexagonal faced rod like structure for Al doped ZnO thin films.T he UV-Vis absorption spectrum for the thin films was also studied. There is decrease in bandgap as the Al doping ratio increases from 1–5%. Photoluminescence (PL) studies confirm that oxygen ion vacancy and interstitial Zn+ ion were present. The maximum zone of inhibition was studied against the bacteria’s the Gram-negative (E.coli) and Gram-positive (S.aureus) by Agar diffusion method. Significant antibacterial result was seen in pure and Al doped ZnO. Al doped ZnO shows more antibacterial activity over pure ZnO. All the samples give considerable antifungal activity which was done against Aspergillusniger.

Item Type: Article
Uncontrolled Keywords: Al doped ZnO, XRD, Hexagonal Wurtzite Structure, FESEM, UV-Vis, PL, Antibacterial activity, Antifungal activity
Divisions: PSG College of Arts and Science > Department of Electronics
Depositing User: Mr Team Mosys
Date Deposited: 30 Aug 2022 08:12
Last Modified: 30 Aug 2022 08:12
URI: http://ir.psgcas.ac.in/id/eprint/1513

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