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Quantum-mechanical treatment of Eu+3 4<i>f</i>→4<i>f</i> and 4<i>f</i>?charge-transfer-state transitions in Y2O2S and La2O2S
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Citations
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References
1976
Year
Charge ExcitationsEngineeringElectronic StructureCharge-transfer-state TransitionsQuantum MaterialsQuantum-mechanical TreatmentQuantum MatterQuantum SciencePhysicsPhysical ChemistryQuantum ChemistryQuantum-mechanical Single-configurational-coordinate ModelCondensed Matter TheorySolid-state PhysicCts ParabolaNatural SciencesApplied PhysicsCondensed Matter PhysicsEu+3 4Preferred Fit
The quantum-mechanical single-configurational-coordinate model is used to interpret Y2O2S:Eu+3 and La2O2S:Eu+3 7F→charge-transfer state (CTS) absorption, 5Di→5Di−1 one-step and 5D→CTS→5D two-step quenchings, and CTS→5Di feeding fractions. The preferred fit requires unequal force constants and a small downshifting of the CTS parabola with increasing temperature.
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