Site-selective luminescence of Bi3+ in the YBO3 host under vacuum ultraviolet excitation at low temperature
2008
Abstract (Y 0.99 Bi 0.01 )BO 3 phosphor was prepared and its luminescent properties were investigated using the synchrotron radiation instrument in this paper. Site-selective luminescence of Bi 3+ in the YBO 3 host was demonstrated by exciting/monitoring with different wavelengths at low temperature in this research. At the same time, the energy transfer between the centers of Bi 3+ ions occupying different symmetric sites was observed. The excited energy levels of Bi 3+ were identified through assigning the emission and excitation spectra. The paths and mechanism of energy transfer between the centers of Bi 3+ occupying different symmetric sites were discussed finally.
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