Synthesis, characterization and electrical properties of α-Fe2O3/CuO nanocomposites
Abstract
α-Fe2O3/CuO nanocomposites were synthesized by a chemical precipitation method. Energy dispersive spectroscopy (EDS) was used to determine the Fe and Cu at.% in the nanocomposites. Structural characterization of the nanocomposites was done by using X-ray diffraction, transmission electron microscopy, and X-ray photoelectron spectroscopy. Micro-Raman and FTIR spectroscopy analyses on the samples ident ified the vibrational modes of both α-Fe2O3 and CuO phases. UV-visible diffuse reflectance spectra of the nanocomposites were recorded, and band gap of the samples was determined using Kubelka-M unk analysis. α-Fe2O3/CuO nanocomposite films were prepared by drop -cast method, and DC electrical conductivity measurements on the films showed that the conductivity increased with increase in temperature and also with Cu (at.%). The activation energies of the samples were determined, and the mechanism of conduction was discussed.
- Publication:
-
International Conference on Advanced Materials: ICAM 2019
- Pub Date:
- October 2019
- DOI:
- 10.1063/1.5130307
- Bibcode:
- 2019AIPC.2162b0097R