Eu掺杂的高Gd玻璃荧光及闪烁发光性能研究
文献类型：期刊论文
| 作者 | 唐春梅; 沈应龙; 盛秋春; 刘双; 李文涛; 王龙飞; 陈丹平 |
| 刊名 | 物理学报
 |
| 出版日期 | 2013 |
| 卷号 | 62期号:24页码:247804 |
| 其他题名 | Properties of luminescence and scintillation of Eu-doped high gadolinium glass |
| 通讯作者 | Chen, DP (reprint author), Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Res & Dev Ctr High Power Laser Components, Shanghai 201800, Peoples R China. |
| 中文摘要 | 分别在空气和还原气氛下,采用高温熔融法制备了Eu 掺杂(1 wt%)的15SiO_2-25B_2O3-30Al_2O_3-30Gd_2O_3氧化物玻璃,对二者的光致发光和闪烁发光性能进行测试. 结果显示:还原气氛下制得的玻璃在395 nm 紫光和X 射线激发下,均可以得到450-550 nm 的Eu~(2+)蓝绿发光和615 nm 的Eu~(3+)红光;然而在不同的激发光源下,Eu~(2+)和Eu~(3+)发光强度比存在明显不同,395 nm 紫光激发下,Eu~(3+)发光强度仅为Eu~(2+)的0.02倍,X 射线激发下,Eu~(3+)发光强度变为Eu~(2+)强度的1.37倍. 通过声子边带谱分析,还原后玻璃中Si 形成体附近的Eu~(3+)全部被还原为Eu~(2+),B 和Al形成体周围的Eu~(3+)部分被还原为Eu~(2+). 进一步分析闪烁发光的机理表明:Gd 的敏化剂作用以及B 和Al 形成体周围Eu~(2+)Eu~(3+)的能量传递都增强了还原玻璃中Eu~(3+)的闪烁发光性能. |
| 英文摘要 | Eu (1 wt%) doped 15SiO(2)-25B(2)O(3)-30Al(2)O(3)-30Gd(2)O(3) oxide glasses are prepared by high-temperature melt-quenching method in air and reduced atmosphere, respectively. The properties of scintillation and photoluminescence of the two samples are compared. When the samples fabricated in reduced atmosphere are excited by the X-ray and 395 nm violet light, a 450-550 nm blue-green light beam from Eu2+ and a 615 nm red light beam from Eu3+ are obtained. The intensity ratios between Eu3+ and Eu2+ are obviously different under different excitation sources. The intensity ratio under the excitation of the 395 nm violet light is 0.02 while it increases to 1.37 under the X-ray excitation. By analyzing the phonon sideband spectra of the samples, it is found that the Eu3+ ions around the former of Si are completely reduced into Eu2+ ions, while only part of Eu3+ ions around the former of B and Al are reduced into Eu2+ ions. Further investigation about the scintillation mechanism indicates that the sensitization of Gd and the energy transfer of Eu2+ Eu3+ near the formers of B and Al increase the scintillation performances of Eu3+ ions in the reduced glass samples. |
| 收录类别 | SCI |
| 语种 | 中文 |
| 版本 | 出版稿 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/14678]  |
| 专题 | 上海光学精密机械研究所_高功率激光单元技术研发中心 |
| 作者单位 | 1.[Tang Chun-Mei 2.Sheng Qiu-Chun 3.Liu Shuang 4.Li Wen-Tao 5.Wang Long-Fei 6.Chen Dan-Ping] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Res & Dev Ctr High Power Laser Components, Shanghai 201800, Peoples R China 7.[Tang Chun-Mei 8.Sheng Qiu-Chun 9.Liu Shuang 10.Li Wen-Tao |
| 推荐引用方式 GB/T 7714 | 唐春梅,沈应龙,盛秋春,等. Eu掺杂的高Gd玻璃荧光及闪烁发光性能研究[J]. 物理学报,2013,62(24):247804. |
| APA | 唐春梅.,沈应龙.,盛秋春.,刘双.,李文涛.,...&陈丹平.(2013).Eu掺杂的高Gd玻璃荧光及闪烁发光性能研究.物理学报,62(24),247804. |
| MLA | 唐春梅,et al."Eu掺杂的高Gd玻璃荧光及闪烁发光性能研究".物理学报 62.24(2013):247804. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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