Synthesis, structural and Raman study of Zn doped CuO nanoparticles Harchand Tudu, Bikram Keshari Das, Tanushree Das Intelligent Computing Techniques and Applications, 2025 Zn doped CuO (Cu1-xZnxO, x = 0 and x = 0.01) nanoparticles were synthesized by solid state reaction route. The structural and microstructural characteristics of the synthesized material was analyzed by X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM). Raman spectroscopy was used to analyze the impact of Zn doping on the distinctive vibrational modes of CuO nanoparticles. The synthesized sample shows a single-phase monoclinic structure. A change in the lattice parameters was noticed with Zn doping. Zn doped CuO samples showed interesting morphological alterations in the FESEM micrograph. Energy dispersive X-ray (EDX) analysis agrees with the existence of Zn dopant in CuO lattice. The shift in peak position in the Raman spectra shows the influence of Zn doping.
Complex modulus spectroscopy of Zn1-xSrxO nanoceramics Tanushree Das, Dipteerekha Das, Kajal Parashar, S. K. S. Parashar, Bikram Keshari Das Aip Conference Proceedings, 2023 Strontium doped Zinc Oxide (Zn1-xSrxO) nanoceramics has been successfully prepared by solid state reaction method with different doping concentration (x=0-0.03). The modulus spectroscopy of the synthesized sample has been carried out by an impedance analyzer. The formation of phase has been confirmed by XRD and was found to be single phase, wurtzite structure, belong to space group P63mc for all compositions. The transition from long to short range mobility of charge carriers was observed in Sr doped ZnO samples. A change in the shape and size of modulus spectrum was observed with increase in temperature. The asymmetric peak broadening shows a non-Debye type of relaxation mechanism. The modulus studies show the single phase formation and temperature dependent relaxation process in the synthesized materials.
