Journal
JOURNAL OF RARE EARTHS
Volume 26, Issue 3, Pages 443-445Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1002-0721(08)60114-3
Keywords
silicate oxyapatite; luminescence; Ph2+; Mn2+; energy transfer; rare earths
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Ca2RE8(SiO4)(6)O-2:A (FE=Y, Gd; A=Pb2+, Mn2+) phosphor films were dip-coated on quartz glass substrates through the sol-gel process. X-ray diffraction (XRD), photoluminescence (PL) spectra as well as lifetimes were used to characterize the resulting films. Under short wavelength UV excitation, the film showed a red emission with medium intensity. The decay curve of Mn2+ luminescence in Ca2Gd8(SiO4)(6)O-2:Pb Mn film could be fitted into a single exponential function. The lifetime of Mn2+ was 10.21 ms in Ca2Gd8(SiO4)(6)O-2.
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