Photoluminescent properties of Ca2RE8(SiO4)6O2:A (RE=Y, Gd; A=Pb2+, Mn2+) phosphor films prepared by sol-gel process |
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| Authors: | HAN Xiumei LIN Jun LI Zhe QI Xiwei LI Mingya WANG Xiaoqiang |
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| Abstract: | Ca2RE8(SiO4)6O2:A (RE=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)6O2:Pb Mn film could be fitted into a single exponential function. The lifetime of Mn2 was 10.21 ms in Ca2Gd8(SiO4)6O2. |
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| Keywords: | silicate oxyapatite luminescence Pb2 Mn2 energy transfer rare earths |
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