Akademik Veri Yönetim Sistemi
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, cilt.132, sa.5, 2026 (SCI-Expanded, Scopus)
In this work, experimental results of the effect of Mn ions incorporation on the structural, optical and luminescence properties of spray deposited ZnO thin films by varying the Mn molar ratio x in the precursor solution. For x = 0.00, XRD peaks revealed that the deposited film correspond to the hexagonal wurtzite structure of ZnO. For x = 0.02 and x = 0.04, the variation of crystalline parameters indicated the presence of compressive stress caused by the incorporation of Mn ions in ZnO. The stress relaxation, for x = 0.06, was accompanied by the appearance of other phases such as MnO2 and ZnMnO3 indicating the decomposition of ZnO phase. The crystallite size decreased from 72 to 35 nm as a function of Mn molar ratio confirming the loss of ZnO crystallinity. The disappearance of Zn-O-Zn bond related peaks in the ATR-FTIR spectrum, for x = 0.06, confirmed XRD results. As a function of Mn molar ratio x, the mean transmittance in the visible light region decreased from 80 to 60% while the band gap energy increased from 3.3 to 3.56 eV. The UV and NIR emission peaks, in PL spectra, decreased rapidly for x = 0.02 to disappear, for x = 0.04 and x = 0.06, with the appearance of violet, blue and blue-green emissions attributed to deep level defects. The presented results made the deposited films suitable for use in many applications such as energy-efficient lighting, photocatalytic water treatment, and spintronic devices for low-power computing.