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https://doi.org/10.1016/j.jacomc.2024.100039
Copy DOIPublication Date: Oct 24, 2024 |
Pure ZnO and Mn-doped ZnO nanoparticles with the formula Zn(1−X)Mn(X)O (x = 0 %, 3 %, 6 %, and 9 %) were synthesized through a co-precipitation method. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were employed to analyze the phase and morphology of the nanoparticles. The x-ray diffraction results confirmed all the prepared samples have a wurtzite crystal structure. The morphological valuations of the produced nanoparticles show that the particles are spherical within a nanometer range. Impedance spectroscopy was used to characterize the impedance in the frequency range of 20 Hz to 2 MHz at temperatures from 140 K to 280 K. Results showed that Mn-doping enhances ac conductivity and decreases the bandgap energy of ZnO. This Mn variation in ZnO at low temperatures and high frequencies has potential applications in optoelectronic devices.
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