OPTICAL BEHAVIOUR OF YTTRIUM DOPED NICKEL-MAGNESIUM-CADMIUM FERRITE PREPARED BY SOL-GEL AUTOCOMBUSTION METHOD
Journal Title: International Journal of Nanotechnology and Application (IJNA) - Year 2017, Vol 7, Issue 1
Abstract
The present work represents, the Yttrium doped Ni0.4 Mg0.4 Cd0.2 Fe2-y O4 Nanoferrites (where y = 0.025 to 0.125) synthesized using sol-gel autocombustion method. The structural and optical properties were studied using XRD, FTIR and UV-Visible spectroscopy for the prepared samples. The XRD pattern shows that the structure of prepared nanoparticles is spinel with average grain size lies in the range between 17 to 25 nm. Lattice parameter was found to increases with Zn concentration and this may be due to the larger ionic radius of the Y3+ ion. FTIR spectroscopy confirmed the formation of spinel ferrite and showed the characteristics absorption bands around 554, 1058, 1384, 1600, 2919, 3434 and 3855 cm-1. The energy band gap was calculated for samples with different ratio and average band gap energy was found to be 4.0743 eV. The substitution was resulted in slight increased in the lattice constant and that sequentially may lead to the slightly increased in the energy gap. Also found that it is in the range of semiconductor materials.
Authors and Affiliations
R. B. BHISE, S. M. RATHOD
Keywords
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