Luminescence, energy transfer properties of Tb3+/Gd3+-coactivated oxyfluoride borogermanate scintillating glasses
Luminescence, energy transfer properties of Tb3+/Gd3+-coactivated oxyfluoride borogermanate scintillating glasses
复制标题
Tb3/Gd3共激活氟硼锗酸盐闪烁玻璃的发光、能量传输性能
DOI：
10.1016/j.jlumin.2015.04.021
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发表时间：
2015-09
影响因子：
3.6
通讯作者：
Peng Xie
中科院分区：
文献类型：
--
作者：
Xin-Yuan Sun;Qing-Mei Yang;Pan Gao;Hong-Shu Wu;Peng Xie
采用熔体淬冷法制备了Gd ~（3+），Tb ~（3+）/Gd ~（3+）共激活的氟氧化物硼锗酸盐微晶玻璃，密度为6.35- 6.61g/cm ~ 3。通过透射光谱、光致发光光谱和X射线激发发光光谱研究了其发光和能量传递特性。在氧氟硼锗酸盐玻璃中，稀土氧化物和氟化物的总含量高达49摩尔%，这是确保其密度高达6.61 g/cm 3所必需的。测定了Gd ~（3+）与Tb ~（3+）的能量传递效率和机理，并分别计算了Gd ~（3+）-Tb ~（3+）和Tb ~（3+）-Tb ~（3+）离子对的临界距离。同时确定了在紫外光和X射线激发下，Tb ~（3+）离子在高密度氧氟硼锗酸盐玻璃中的最佳浓度。Tb ~（3+）激活的硼锗酸盐闪烁玻璃的积分闪烁效率约为标准Bi_4Ge_3O_（12）（BGO）闪烁晶体的26.9%。
Gd3+-, Tb3+/Gd3+-coactivated oxyfluoride borogermanate scintillating glasses with the density of about 6.35–6.61 g/cm3were prepared by a melt-quenching method. The luminescent and energy transfer properties were studied by transmittance, photoluminescence and X-ray excited luminescence (XEL) spectra. The total content of rare-earth oxide and fluoride is as high as 49 mol% in oxyfluoride borogermanate glasses, which are necessary to ensure their density up to 6.61 g/cm3. Energy transfer efficiency and mechanism from Gd3+to Tb3+were determined, and the corresponding critical distances for both Gd3+–Tb3+and Tb3+–Tb3+ion pairs were calculated, respectively. The optimal concentration of Tb3+ions in dense oxyfluoride borogermanate glasses excited by both ultraviolet light and X-ray excitation were also determined. The integral scintillation efficiency of Tb3+-activated borogermanate scintillating glass was found to be about 26.9% of the standard Bi4Ge3O12(BGO) scintillating crystal.
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影响因子：
3.7
作者：
Chunmeng Liu;Dejian Hou;Jing Yan;Lei Zhou;Xiao-yan Kuang;Hongbin Liang;Yan Huang;Bingbing Zhang-Bingbing
通讯作者：
Chunmeng Liu;Dejian Hou;Jing Yan;Lei Zhou;Xiao-yan Kuang;Hongbin Liang;Yan Huang;Bingbing Zhang-Bingbing
影响因子：
3.9
作者：
Nathalie Duhamel-Henry;J. Adam;B. Jacquier;C. Linares
通讯作者：
Nathalie Duhamel-Henry;J. Adam;B. Jacquier;C. Linares
用于近紫外 LED 的绿光荧光粉 Na2Gd2B2O7:Ce3、Tb3
影响因子：
3.9
作者：
Guo, Chongfeng;Jing, Heng;Li, Ting
通讯作者：
Li, Ting
DOI：
10.1002/pssa.201121801
发表时间：
2011-01
期刊：
physica status solidi (a)
影响因子：
--
作者：
M. Stutzmann
通讯作者：
M. Stutzmann
影响因子：
4
作者：
M. Nikl;K. Nitsch;E. Mihóková;N. Solovieva;J. Mares;P. Fabeni;G. P. Pazzi;M. Martini;A. Vedda;S. Baccaro
通讯作者：
M. Nikl;K. Nitsch;E. Mihóková;N. Solovieva;J. Mares;P. Fabeni;G. P. Pazzi;M. Martini;A. Vedda;S. Baccaro