Luminescent properties of yttrium diphenylphosphinate activated by europium
作者： Cristina S. Francisco , Elizabeth B. Stucchi , Edson M. de Abreu
DOI: 10.1016/J.JALLCOM.2005.10.067
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摘要: Abstract The synthesis and spectroscopic characterization of yttrium diphenylphosphinates doped with europium are reported. purity all samples was confirmed by carbon hydrogen micro analysis, thermal IR vibrational spectroscopy, X-ray diffraction. Luminescence spectra indicated the presence two or more symmetry centers. dynamic luminescence measurements suggested that one site presented an inversion center, while others had lower symmetry. average quantum yield Eu 3+ emission in matrices 60%.
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