Study and Characterize Optical and Electronics Properties of Fe3O4- Bi2O3 Nanocomposite: Theoretical and Experimental Method

Abstract

Nanocomposites have a vital role in different applications due to their novel properties .In this study, we used theoretical and experimental methods. In theoretical method, we studied polarizability, refractive index and optical absorbance of Bi2O3@Fe3O4 core-shell nanocomposite. In this part, two optical resonances are appeared due to two interference of the composite. The two resonances are varied based on the concentration of core or shell material. In experimental part, Bi2O3 -Fe3O4 composite nanostructures were synthesized using chemical and biological synthesize routes. The structural properties of the composite were performed using XRD spectroscopy. In this analysis, in both routes both materials are present in the composite. It was understood that Fe3O4 nanoparticles were decorated around Bi2O3 in the morphology of nanostructures. Energy band gaps of Bi2O3 -Fe3O4 nanocomposite structures were obtained from Photoluminescence. The band gap values of nanostructures were calculated to be in the range of 2.33-2.36 eV.