Optical properties of Cu2O and CuO
S. M. Butte, S.A. Waghuley
Abstract
The present investigation reports on synthesis of copper oxides nanoparticles by chemical route method. In this investigation we are prepared CuO and Cu2O by calcination process. To study the structural and optical properties as prepared sample by XRD and UV-Vis characterization analysis. The average crystallite size calculated from Scherrer formula of as synthesize sample. The crystallite size is found to be 6.39 nm and for CuO nanoparticles is 27.17 nm. The PL spectra for Cu2O nanoparticles shows the peaks at 470 nm and 390 nm respectively. For CuO nanoparticle the peaks obtained at 393 nm, 470 nm and 494 nm. The UV visible spectroscopy shows the presence of Cu2O due to increase in intensity and the decreased response in CuO absorption peak is due to the deformation of lattice due to strain produced by inelastic scattering of charge carries by photons and imperfection also internal electrical fields within the crystal.