Abstract
Structural, optical, and magnetic properties of Mn-doped CuO nanoparticles with compositional formula Cu1-xMnxO (x = 0.00, 0.01, 0.02) were investigated. The monoclinic structure of CuO without a secondary phase has been confirmed by X-ray diffraction (XRD) analysis. The average crystallite size was determined by Debye-Scherer’s formula and found in the range of 8 nm to 14 nm. W-H analysis resulted in decreasing microstrain with an increase of Mn doping, indicating Mn incorporation in CuO host lattice. Scanning electron microscope (SEM) images indicate that the pure and Mn-doped CuO nanoparticles have spherical-like morphology. UV–vis spectroscopy measurements revealed absorbance edge as a function of Mn doping. X-ray photoelectronic spectroscopy (XPS) study indicates that both Cu and Mn ions have 2+ valences in the samples. The magnetic hysteresis loops of the nanoparticles showed paramagnetic behavior at room temperature.
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