Effect of Co substitution on the structural, dielectric and optical properties of KBiFe2O5

Volume: 28, Issue: 11, Pages: 1861 - 1867
Published: Nov 1, 2021
Abstract
Cobalt (Co)-modified brownmillerite KBiFe2O5 (KBFO; [KBiFe2(1-x)Co2xO5 (x = 0, 0.05)]) polycrystalline is synthesized following the solid-state reaction route. Rietveld refinement of X-ray diffraction data confirmed the phase purity of KBFO and KBiFe1.9Co0.1O5 (KBFCO). The optical bandgap energy (Eg) of KBFO decreased from 1.59 to 1.51 eV because of Co substitution. The decrease in bandgap can be attributed to the tilting of the Fe-O tetrahedral...
Paper Details
Title
Effect of Co substitution on the structural, dielectric and optical properties of KBiFe2O5
Published Date
Nov 1, 2021
Volume
28
Issue
11
Pages
1861 - 1867
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