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Author

Ram Kumar

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Aug 2026

Band-Gap-Engineered Ferroelectric Perovskite x KNbO3–(1 – x )BaFe0.5Nb0.5O3: Structural Phase Transition, Photophysics, DFT-Guided Charge-Transfer Mechanism and Superior Visible-Light Photocatalytic Degradation of Rhodamine B

We synthesize and characterize the solid-solution series xKNbO3–(1 – x)BaFe0.5Nb0.5O3 (x = 1.0 to 0.0) through solid–state reaction. Rietveld refinement and Raman spectroscopy confirm a composition-driven Bmm2→Pm3¯m structural phase transition that completes at x ≤ 0.3. UV–vis Tauc analysis shows the widest band gap...

T. Bhowmik, Ram Kumar, Alo Dutta et al. · 0 citations

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