3-7 July 2023
University of Zululand
Africa/Johannesburg timezone
The Proceedings of SAIP2023 Published: 20 December 2023

Improve physical properties of rare earth metal doped strontium sulphide for optoelectronic purpose

4 Jul 2023, 15:40
2h
University of Zululand

University of Zululand

Poster Presentation Track A - Physics of Condensed Matter and Materials Poster Session 1

Speaker

Mr Samuel Shaka (Delta State University Abraka)

Description

The electrochemical deposition was used to synthesize SrS-doped zirconium materials at varying dopant concentrations of 0.01 to 0.03 mol. The surface micrograph of the zirconium doped films is well structured on the surface of the FTO used for the synthesis without any crack or lattice strain. The spectrum is polycrystalline with a cubic structure and a prominent peak at (111) orientation for SrS film. At the introduction of the zirconium dopant 0.01 mol, the peak intensity increases with a prominent peak at (211) which indicate acceptance of zirconium dopant in the precursor and as the dopant concentration rises the peak intensity decreases which depicts that a higher concentration of zirconium reduces the peak intensity of the films.The Williamson-Hall plot's slope increases as the dopant concentration increases. The materials exhibit a thickness increase of 121.32 to 126.13 nm and a decrease in film resistivity from 1.12 x 109 to 1.32 x 109 ohm.m, which further led to an increase in conductivity from 7.57 x 108 to 8.26 x 108 S/m.The bandgap energy of SrS is 1.50 eV while SrS-doped zirconium is 1.35 eV – 2.52 eV.

Level for award;(Hons, MSc, PhD, N/A)?

PhD

Apply to be considered for a student ; award (Yes / No)? Yes

Primary author

Mr Samuel Shaka (Delta State University Abraka)

Co-authors

Ms Mercy Frank (International Institute of Tourism and Hospitality, Yenagoa, Bayelsa State, Nigeria) Dr Ikhioya Imosobomeh (Quaid-i-Azam University Campus) Prof. Enoh Ogherohwo (Federal University of Petroleum Resources, Effurun, Delta State. )

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