Luminescence in some tantalate host lattices
作者： G. Blasse , A. Bril
DOI: 10.1016/0022-4596(71)90009-0
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摘要: Abstract The luminescence of the following systems are reported: ScTa1−xNbxO4, Li3Ta1−xNbxO4, CaTa2−2xNb2xO6 and Mg4Ta2−2xNb2xO9. dependence properties on x becomes more pronounced if distance between pentavalent ions shorter. In these NbO6 group gives an efficient blue emission at 300°K. compound Mg4Ta2O9 ultraviolet At 77°K both Mg4Nb2O9 show in addition a weaker peaking wavelengths longer than wavelength room temperature emission. This low-temperature can be excited by radiation with that absorption edge. Mn2+ ion Mg4Ta2O9Mn acts as activator deep-red
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