The effect of metal ion (MI) doping on the properties of zinc oxide nanoparticles (ZnO-NPs), was investigated. ZnO-NPs doped with a small amount (1.7 %) of Al, Ag, Cu, and Mn were successfully synthesized. X-ray diffraction (XRD) confirmed the retention of the hexagonal wurtzite structure after doping, with no secondary phases observed. A clear correlation was established between the ionic radii of the dopants and the consistent changes in the structural, vibrational and morphological properties. Ultraviolet–visible (UV–visible) spectroscopy showed a noticeable widening of the optical bandgap, shifting from 3.70 eV (ZnO) to 3.90 eV (Al-doping), 4.04 eV (Ag- doping), 3.88 eV (Cu- doping), and 3.97 eV (Mn- doping).
Citation
Rabie AMARI ,
Smail TERCHI ,
Djamel ALLALI ,
Bahri DEGHFEL ,
ABDELHAMID Guelil ,
AMMAR Boukhari ,
ELHADJ Benrezgua ,
Abdelhalim Zoukel, Ahmad Azmin Mohamad, , (2025-09-01), The effect of low concentrations of selected metal ions (Al, Ag, Cu, Mn) on the properties of ZnO nanoparticles prepared by the co-precipitation technique, Materials Letters,
Vol:394, Issue:0, pages:138677, Elsevier, Science Direct
