Photoluminescence properties of Y0.75-xGdxAl0.10BO3:Eu3+0.10, 0.05R3+ (R= Sc, Bi) (0.00≤x≤0.45)

doi:10.1088/1674-1056/19/6/063301

中国物理B ›› 2010, Vol. 19 ›› Issue (6): 63301-063301.doi: 10.1088/1674-1056/19/6/063301

Photoluminescence properties of Y_0.75-xGd_xAl_0.10BO₃:Eu³⁺_0.10, 0.05R³⁺ (R= Sc, Bi) (0.00≤x≤0.45)

李杰, 王育华, 董其铮, 刘吉地

Department of Material Science, School of Physics Science and Technology, Lanzhou University, Lanzhou 730000, China

收稿日期:2009-09-11 出版日期:2010-06-15 发布日期:2010-06-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No.~10874061), the Doctoral Program Foundation of Institutions of Higher Education of China (Grant No.~20040730019), and the Project of the Combination of Industry and Research b

Photoluminescence properties of Y_0.75-xGd_xAl_0.10BO₃:Eu³⁺_0.10, 0.05R³⁺ (R = Sc, Bi) (0.00≤x≤0.45)

Li Jie(李杰), Wang Yu-Hua(王育华)^†, Dong Qi-Zheng(董其铮), and Liu Ji-Di(刘吉地)

Department of Material Science, School of Physics Science and Technology, Lanzhou University, Lanzhou 730000, China

Received:2009-09-11 Online:2010-06-15 Published:2010-06-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No.~10874061), the Doctoral Program Foundation of Institutions of Higher Education of China (Grant No.~20040730019), and the Project of the Combination of Industry and Research b

摘要/Abstract

摘要： Y_{0.75 - x}Gd_xAl_0.10BO₃:Eu^{3+}_0.10, 0.05R³⁺ (R=Sc, Bi) (0.00 ≤ x ≤ 0.45) powder samples are prepared by solid-state reaction and their luminescence properties are investigated. With the replacement of Y³⁺ ions by Sc³⁺ (or Bi³⁺) and Gd³⁺ ions in (Y,Al)BO₃:Eu, the intensities of emission at 254 and 147~nm are remarkably improved, because Sc³⁺ ions can absorb UV light and transfer the energy to Eu³⁺ ions efficiently. Moreover, Gd³⁺ and Bi^{3 + } ions act as an intermediate ``bridge'' between the sensitizer and the activator (Eu³⁺) in energy transfer to produce light in the (Y, Gd)BO₃:Bi³⁺, Eu³⁺ system more effectively. After doping an appropriate concentration of Gd³⁺ into Y_{0.50}Gd_{0.25}Al_0.10BO₃:Eu³⁺_{0.01}, Bi^{3+}_{0.05}, the emission intensity reaches its maximum, which is nearly 110{\%} compared with the red commercial phosphor (Y,Gd)BO₃:Eu and better chromaticity coordinates (0.650, 0.350) are obtained.

Abstract: Y$_{0.75 - x}$Gd_xAl_0.10BO₃:Eu$^{3+}_{0.10}$, 0.05R³⁺ (R = Sc, Bi) (0.00 ≤ x ≤ 0.45) powder samples are prepared by solid-state reaction and their luminescence properties are investigated. With the replacement of Y³⁺ ions by Sc³⁺ (or Bi³⁺) and Gd³⁺ ions in (Y, Al)BO₃:Eu, the intensities of emission at 254 and 147~nm are remarkably improved, because Sc³⁺ ions can absorb UV light and transfer the energy to Eu³⁺ ions efficiently. Moreover, Gd³⁺ and Bi³⁺ ions act as an intermediate ``bridge'' between the sensitizer and the activator (Eu³⁺) in energy transfer to produce light in the (Y, Gd)BO₃:Bi³⁺, Eu³⁺ system more effectively. After doping an appropriate concentration of Gd³⁺ into Y$_{0.50}$Gd$_{0.25}$Al_0.10BO₃:Eu$^{3+}_{0.01}$, Bi$^{3+}_{0.05}$, the emission intensity reaches its maximum, which is nearly 110{\%} compared with the red commercial phosphor (Y,Gd)BO₃:Eu and better chromaticity coordinates (0.650, 0.350) are obtained.

Key words: Sc³⁺, Bi³⁺, Gd³⁺, luminescence intensity, chromaticity

中图分类号: (Other solid inorganic materials)

78.55.Hx

81.20.Ev (Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation) 61.72.S- (Impurities in crystals)

李杰, 王育华, 董其铮, 刘吉地. Photoluminescence properties of Y_0.75-xGd_xAl_0.10BO₃:Eu³⁺_0.10, 0.05R³⁺ (R= Sc, Bi) (0.00≤x≤0.45)[J]. 中国物理B, 2010, 19(6): 63301-063301.

Li Jie(李杰), Wang Yu-Hua(王育华), Dong Qi-Zheng(董其铮), and Liu Ji-Di(刘吉地). Photoluminescence properties of Y_0.75-xGd_xAl_0.10BO₃:Eu³⁺_0.10, 0.05R³⁺ (R = Sc, Bi) (0.00≤x≤0.45)[J]. Chin. Phys. B, 2010, 19(6): 63301-063301.

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Photoluminescence properties of Y_0.75-xGd_xAl_0.10BO₃:Eu³⁺_0.10, 0.05R³⁺ (R= Sc, Bi) (0.00≤x≤0.45)

Photoluminescence properties of Y_0.75-xGd_xAl_0.10BO₃:Eu³⁺_0.10, 0.05R³⁺ (R = Sc, Bi) (0.00≤x≤0.45)

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