Optical and Structural Properties of Mn-doped Magnesium Titanates Fabricated with Excess MgO

L. Borkovska,L. Khomenkova,T. Stara,I. Vorona,V. Nosenko,O. Gudymenko,V. Kladko,K. Kozoriz, C. Labb,J. Cardin,J. -L. Doualan,T. Kryshtab

MATERIALS TODAY COMMUNICATIONS（2021）

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摘要

•Ceramics based on Mn-doped MgTiO3 was produced by solid state reaction approach.•In MgTiO3 sintered under equimolar MgO:TiO2 ratio, Mn incorporates mainly as Mn2+.•Ceramics produced with excess MgO composes of MgTiO3 and Mg2TiO4 phases.•Mg2TiO4 phase is under compressive strains and shows modified Mn4+ red luminescence.•The excess MgO facilitates incorporation of Mn onto Ti4+ site in MgTiO3 phase.

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关键词

Oxide materials,Ceramics,Point defects,Luminescence,Electron paramagnetic resonance,X-ray diffraction

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