Influence of magnesium incorporation on the structural, optical, and electronic properties of chemically synthesized ZnO thin films: experimental observations and ab initio analysis
Year: 2025
Type: conference-paper
Abstract: In this study, zinc oxide (ZnO) thin films doped with varying amounts of magnesium (Mg) were fabricated through a sol– gel process combined with spin coating. The influence of Mg incorporation on the structural, electrical, and optical behaviors of ZnO layers was thoroughly examined. X-ray diffraction confirmed that all prepared coatings exhibit a wurtzite-type hexagonal lattice with strong preferential growth along the c-axis. Within the visible spectrum, the films demonstrated an average optical transmittance of approximately 77 %, while increasing Mg content induced a noticeable red shift in the absorption edge. Furthermore, the electronic characteristics of ZnO were investigated using UV–visible spectroscopy and optical microscopy. Complementary ab initio simulations determined a band gap of 3.2 eV, with calculated density of states in excellent agreement with the measured optical responses. These outcomes highlight the capability of ab initio methods to reliably describe the electronic properties of ZnO-based materials.
DOI: 10.1117/12.3087223
Language: English
Topic: ZnO doping and properties
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W4414357744
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