Determination Of Crystallite Parameters Of Titanium Dioxide Doped Zinc Oxide Nanop
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Date
2021-12
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Department of Electrical and Electronic Engineering
Abstract
In this thesis, we report on crystallite parameters of Zinc Oxide nanoparticles doped with several concentrations of P25 type Titanium dioxide (TiO2). The films were prepared using conventional Doctor Blade coating method along with hot-compression as an effective post-deposition treatment. For the characterization of the films, X-ray Diffraction (XRD) techniques were used. For new material enacting, the XRD method is a very dynamical technique used in modern applied science. Crystallite attributes such as crystallite size, lattice strain, stress and energy density were more effectively evaluated for all of the XRD reflection peaks communicating to the wurtzite hexagonal phase of ZnO operating a modified form of the methods including the Wagner-Agua technique, Halder-Wagner method, Size-Strain Plot, and the Williamson-Hall (W-H) models. Comparisons of the effect were made to see the result of unlike doping percentage on the crystallite parameters. Reasoning appear that ZnO nanoparticles were crystallite in nature with a hexagonal wurtzite phase and the crystallinity was not harmed by absorbing Titanium dioxide (P25). Crystallite dimension got from all the methods were almost similar excluding Halder-Wagner method which appears a much lower value of crystallite size compared to other methods. All these methods recognize that while the Titanium dioxide (P25) concentration rises, the crystallite dimension rises and the lattice strain drops. Among all the methods SSP and Wagner-Agua method appears more correct values while the points fit the linear line strongly preferable compared to other methods. But, change in many crystallite characteristics caused by dissimilar percentage of Titanium dioxide (P25) was observed to explain the effect of doping on crystallite parameters. The changes in various crystallite parameters can effect greatly on the device
Description
submitted by Fariha Binta Hyder, bearing Matric ID. ET171202 and Sanjida Najnin, bearing Matric ID. ET171203, and Roxana Jahan, bearing Matric ID. ET171207 of session Autumn 2020