光谱学与光谱分析 |
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VUV Spectral Properties of MO-Y2O3-B2O3:Re(M=Mg, Sr; Re=Eu, Tb) |
LIANG Zhong-yi, HE Da-wei*, SHI Yan-ning |
Ministry of Education Key Lab of Materials for Information Storage and Display,Institute of Photoelectron Technology, Beijing Jiaotong University, Beijing 100044, China |
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Abstract Eu and Tb doped 17MO-7.88Y2O3-75B2O3 samples were prepared by the solid state reaction. VUV excitation properties and luminescence properties under VUV excitation were studied. Excitation spectra exhibited high absorption in VUV region(120-220 nm). There existed strong emission peaking at 591 and 613 nm corresponding to the 5D0→7FJ(J=1, 2, 3, 4) emission transition of Eu3+ when MgO-Y2O3-B2O3:Eu was energized by the VUV radiation(147 nm). By the introduction of Sr into MgO-Y2O3-B2O3:Eu absorption peaking at 147 nm and red emission peaking at 613 nm are enhanced strongly. Besides the host absorption band of MgO-Y2O3-B2O3:Tb,there existed strong absorption band peaking at 170,178,195,204,225 nm corresponding to the 4f8→4f75d transition of Tb3+; emission spectra showed strong emission peaks at 491,547,590,621 nm corresponding to the 5D4→7FJ(J=6,5,4 and 3) emission transition of Tb3+.
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Received: 2005-03-08
Accepted: 2005-07-28
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Corresponding Authors:
HE Da-wei
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