A novel narrow band UV-B emitting phosphor-YPO4:Sb3+,Gd3
来源期刊：JOURNAL OF RARE EARTHS2016年第2期
论文作者：邓陶丽 闫世润 胡建国
文章页码：137 - 142
摘 要：YPO4 phosphors single-doped with Sb3+ or Gd3+ and co-doped with Sb3+ and Gd3+ were prepared by a solid-state reaction method. The phase purity, morphology, photoluminescence excitation and emission properties of the prepared phosphors were investigated. The results showed that Sb3+ could sensitize Gd3+ in the co-doped phosphors which made the phosphors excitable by short-wave ultraviolet（UV） at a wavelength between 220 and 260 nm. Under 253.7 nm excitation, the co-doped phosphors Y1–x–y PO4: Sb3+x,Gd3+y showed strong emission of Gd3+ at a wavelength of 312 nm whose intensity changed with the doping concentrations of Gd3+ and Sb3+. The optimized Y0.77PO4:Sb3+0.07,Gd3+0.16 phosphor showed an intensity comparable to commercial LaPO4:Ce phosphor（UVB-315）, making it a potential candidate for mercury low-pressure discharge narrow-band UV-B emitting lamps.
邓陶丽，闫世润，胡建国
Department of Chemistry, Fudan University
摘 要：YPO4 phosphors single-doped with Sb3+ or Gd3+ and co-doped with Sb3+ and Gd3+ were prepared by a solid-state reaction method. The phase purity, morphology, photoluminescence excitation and emission properties of the prepared phosphors were investigated. The results showed that Sb3+ could sensitize Gd3+ in the co-doped phosphors which made the phosphors excitable by short-wave ultraviolet（UV） at a wavelength between 220 and 260 nm. Under 253.7 nm excitation, the co-doped phosphors Y1–x–y PO4: Sb3+x,Gd3+y showed strong emission of Gd3+ at a wavelength of 312 nm whose intensity changed with the doping concentrations of Gd3+ and Sb3+. The optimized Y0.77PO4:Sb3+0.07,Gd3+0.16 phosphor showed an intensity comparable to commercial LaPO4:Ce phosphor（UVB-315）, making it a potential candidate for mercury low-pressure discharge narrow-band UV-B emitting lamps.
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