Open AccessSynthesis, structure and optical properties of Indium filled CoSb3 nanomaterials
Author(s) -
M. Uday Kumar,
R. Swetha,
Latha Kumari
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1495/1/012006
Subject(s) - materials science , powder diffraction , nanoparticle , indium , diffraction , scanning electron microscope , analytical chemistry (journal) , crystallography , nanotechnology , chemistry , optics , optoelectronics , composite material , physics , chromatography
The nano-sized In y CoSb 3 skutterudites ( y = 0.0125, 0.025, 0.0375 and 0.0625) were synthesized by solvo-/hydrothermal method at 240 °C for 24 hours. The surface morphology of as-synthesized samples analyzed by Field Emission Scanning Electron Microscope (FESEM) shows nanoparticles with size of around 50 nm depicting narrow size distribution and Electron X-ray diffraction spectroscopy (EDX) spectrum confirms the purity of the In-filled CoSb 3 nanomaterials. The powder X-ray diffraction (pXRD) pattern reveals all the compositions showing diffraction peaks indexed to cubic phase of CoSb 3 with Space group Im 3 ¯ . However, no significant variation in the pXRD pattern of In filled CoSb 3 as compared to pure CoSb 3 justifies the successful filling of voids in cage-like structure of CoSb 3 with Indium. FTIR spectra of In filled CoSb 3 presents vibration modes below 1000 cm −1 corresponding to Co-Sb bonding and Cobalt complex. A significance of In filling into CoSb 3 structure is also evident. A wide absorption has been witnessed from UV region to large part of visible region, hence indicating the effect of nanoparticle, agglomeration and filling.