Synthesis and Characterization of Copper Oxide Nanoparticles for Perovskite Solar Cell Applications

In the present study, various calcination temperatures for auto-combustion technique was used to investigate the capability for tune a structural, visual and dielectric property of a synthesized Copper oxide. The smaller phase variations or lattice distortion seemed because of ever-changing the diffraction angle peaks to large angle in copper oxide are resembled with increase the calcination temperature. The crystalline size seems for reduction in grain size between 5.6nm and 3.98nm with enhancing calcination temperature of CuO nanoparticles. Electronic transportation properties were unrushed through impedance analyzer on the frequency range of 0-8MHz at numerous temperatures. Dielectric permittivity of CuO nanoparticles was found to decreases in energy losses 0.00023 to 0.00015 with increment of calcination temperature. The alternating current conductivity mechanism in the CuO calculated by Maxwell-Wagner Model. The optical properties containing the absorption spectra for synthesized samples were examined by ultra-visible spectra. The value of energy band gap was also establishing reduction from 4.37eV to 2.38eV by increasing the temperature. The consequences exposed that the copper oxide NPs by increasing ultra-wide band gap would be presented better photo-response for solar cell as well as photo-detectors applications.