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Issue 36, 2013
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Luminescence and site occupancies of Eu3+ in La2CaB10O19

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Eu3+-activated La2CaB10O19 phosphors with nominal chemical formulae La2−xEuxCaB10O19 and La2Ca1−2xEuxNaxB10O19 were prepared. The luminescence properties under VUV-UV excitation were investigated. Luminescence spectra reveal Eu3+ ions occupy both Ca2+ and La3+ sites in all samples. The O2− → Eu3+ charge transfer bands (CTBs) and the 5D07F0 emissions of Eu3+ at Ca 2+ site and La3+ site are identified, respectively. The schematic energy levels for Eu3+ in two sites were achieved. Luminescence decays of the 5D07F0 transitions were measured for both sites.

Graphical abstract: Luminescence and site occupancies of Eu3+ in La2CaB10O19

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Publication details

The article was received on 03 Apr 2013, accepted on 13 May 2013 and first published on 14 May 2013

Article type: Paper
DOI: 10.1039/C3DT50878A
Citation: Dalton Trans., 2013,42, 12891-12897

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    Luminescence and site occupancies of Eu3+ in La2CaB10O19

    H. Lin, D. Hou, L. Li, Y. Tao and H. Liang, Dalton Trans., 2013, 42, 12891
    DOI: 10.1039/C3DT50878A

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