Structural, Surface, and Optical Properties of SmxBi2-xFe4O9

Abstract

            In this work, Sm_xBi_2-xFe₄O₉(x=0.02, 0.04, 0.06, 0.08, and 0.10) compound synthesized using  microwave assisted sol-gel method. The samples were characterized using X-ray diffractionSpectrometer, Fourier-Transform Infra-Red Spectroscopy and Ultra Violet- Visible spectroscopy. The structural confirmed the crystals structure and purity of the sample using X-ray diffractionSpectrometer. The analysis confirmed the formation of orthorhombic structure with (211) is the most favorable orientation. Surface analysis confirmed the presence of nitrate group and –OH group along with all expected Bismuth and Ferrous oxides. The analysis confirmed the presence of Bi-O, Bi-O-Bi, Fe-O, and FeO₄tetrahedra. The Ultra Violet- Visible spectral analysis showed that the band-gap values can be estimated. Also, the estimated refractive index in ultra-violet region was 2.04.