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RESEARCH PRODUCT
Optical behavior of Eu3+-doped BaTiO3 nano-crystallites prepared by sol–gel method
Georges BoulonDariusz HreniakYannick GuyotWieslaw StrekRobert Pąziksubject
Phase transitionMaterials scienceOrganic ChemistryDopingSinteringMineralogyAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsInorganic Chemistrysymbols.namesakeNanocrystalChemical engineeringsymbolsCrystalliteElectrical and Electronic EngineeringPhysical and Theoretical ChemistryRaman spectroscopyLuminescenceSpectroscopySol-geldescription
Abstract Eu 3+ -doped BaTiO 3 nano-crystallites with grain sizes 32–38 nm have been obtained by a sol–gel method. It has been found that the luminescence characteristics are strongly dependent on the sintering temperature. Powders sintered at temperatures below 1000 °C demonstrate a luminescence behavior at room temperature associated with a lack of the inversion symmetry of Eu 3+ sites. Above 1000 °C nano-crystallites undergo a phase transition characterized by an inversion symmetry of Eu 3+ sites. The size effect of Eu 3+ :BaTiO 3 nano-crystallites on luminescence characteristics is observed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-10-01 | Optical Materials |