Effect of Doping with Zinc Oxide on The Structural, Surface, and Optical Properties of Titanium Dioxide Thin Films
Keywords:Titanium Dioxide, Zinc doping, spray pyrolysis technique, XRD, AFM.
Titanium oxide thin films that are both undoped and doped with zinc have been produced in rates of (0, 2 and 4) %. The titanium oxide films doped with zinc were made by combining cadmium acetate with zinc acetate in a solution of titanium acetate with (0.2 M). X-ray diffraction tests showed that the films of undoped TiO2 and (TiO2: Zn) are polycrystalline with (121) orientation. Additionally, the crystallization of films rises as zinc doping level rises. With zinc doping concentration, the grain size of the deposited films is around (15.55-17.91) nm, while the strain (%) parameter decreases from 22.29 to 19.35 with zinc. The grain size was in the range of (90.9), (67.8), and (37.7) nm for the (Ti O2, TiO2: 2% Zn, and TiO2:4% Zn) accordingly in Atomic Force Macroscopy pictures of the film surface morphology. Surface roughness and rms values for the deposited films for undoped TiO2 and TiO2:2% Zn, and TiO2:4%Zn were (6.72, 3.34, and 2.034) nm and (8.80, 8.03, and 4.24), respectively. The spectrum of absorbance and transmission was used to study the optical characteristics. The investigation revealed that the films have robust transmission throughout the visible spectrum and that this transmission decreases with increased doping with zinc content. In addition, the edge of the films' absorbance changes to high wavelengths, which supports a drop in energy gap values. Also computed and discovered to vary with increased doping with zinc concentration were the absorption coefficient, refractive index, and extinction coefficient.
How to Cite
Copyright (c) 2023 Samarra Journal of Pure and Applied Science
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors retain copyright and grant the SJPAS journal right of first publication, with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in Samarra Journal of Pure and Applied Science.
The Samarra Journal of Pure and Applied Science permits and encourages authors to archive Pre-print and Post-print items submitted to the journal on personal websites or institutional repositories per the author's choice while providing bibliographic details that credit their submission, and publication in this journal. This includes the archiving of a submitted version, an accepted version, or a published version without any Risks.