期刊
JOURNAL OF APPLIED PHYSICS
卷 108, 期 8, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.3500333
关键词
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资金
- National Basic Research Program of China [2007CB935502]
- National Natural Science Foundation of China [20871121, 10979027]
- Natural Science Foundation of Guangdong Province [9151027501000003]
A series of Ce3+ doped alpha-Sr2-2xCexNaxP2O7 phosphor compounds has been prepared using a high-temperature solid-state reaction technique. The luminescence properties under vacuum ultraviolet-UV and x-ray excitation were studied. Luminescence spectra reveal three UV-emitting peaks at about 310, 330, and 350 nm from which we conclude that Ce3+ occupies two distinct sites in alpha-Sr2P2O7. The influences of the doping concentration, the temperature, and the excitation wavelength on the luminescence of Ce3+ at the Ce(I) and Ce(II) sites together with the decay characteristics are discussed. The light yield under x-ray excitation is found to be around 10 000 photons/MeV. (C) 2010 American Institute of Physics. doi:10.1063/1.3500333]
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