无机材料学报 ›› 2026, Vol. 41 ›› Issue (9): 1330-1338.DOI: 10.15541/jim20250415
黄东1(
), 吴俊林1,2, 胡辰1,2(
), 王雁斌1,2, 陈宇洋1,2, 李廷松1,2, 杨文钦3,4, 蒋兴奋3,4, 周健荣3,4, 孙志嘉3,4, 李江1,2(
)
收稿日期:2025-10-22
修回日期:2026-01-28
出版日期:2026-09-20
网络出版日期:2026-04-03
通讯作者:
胡 辰, 副研究员. E-mail: huchen@mail.sic.ac.cn;作者简介:黄 东(1994-), 男, 硕士. E-mail: huangdong@mail.sic.ac.cn
HUANG Dong1(
), WU Junlin1,2, HU Chen1,2(
), WANG Yanbin1,2, CHEN Yuyang1,2, LI Tingsong1,2, YANG Wenqin3,4, JIANG Xingfen3,4, ZHOU Jianrong3,4, SUN Zhijia3,4, LI Jiang1,2(
)
Received:2025-10-22
Revised:2026-01-28
Published:2026-09-20
Online:2026-04-03
Contact:
HU Chen, associate professor. E-mail:huchen@mail.sic.ac.cn;LI Jiang, professor. E-mail:lijiang@mail.sic.ac.cn
About author:HUANG Dong (1994-), male, Master. E-mail: huangdong@mail.sic.ac.cn
Supported by:摘要:
本工作通过水浴法合成Gd2O2S:Tb粉体, 并采用真空预烧结合热等静压烧结后处理工艺, 制备了不同掺杂浓度的Gd2O2S:Tb闪烁陶瓷, 研究了掺杂浓度对Gd2O2S:Tb陶瓷微观结构和光学性能的影响。结果表明, 随着掺杂浓度的增加, Gd2O2S:Tb陶瓷的晶格参数减小。不同掺杂浓度的Gd2O2S:Tb陶瓷的总光学透过率变化不大, 这主要是由于第二相的影响。随着掺杂浓度的增加, Tb3+之间的非辐射弛豫导致光致发光(Photoluminescence, PL)衰减时间从617 μs缩短至576 μs。Gd2O2S:Tb陶瓷的PL和X射线激发发射(X-ray excited luminescence, XEL)光谱表现出较强的浓度猝灭现象。掺杂浓度为3.5%(原子百分数)时, Gd2O2S:Tb陶瓷具有最高的稳态XEL强度, 光输出为37500 ph/MeV。不同掺杂浓度的Gd2O2S:Tb陶瓷在50 ms后的余辉变化较小(0.1%~0.3%)。
中图分类号:
黄东, 吴俊林, 胡辰, 王雁斌, 陈宇洋, 李廷松, 杨文钦, 蒋兴奋, 周健荣, 孙志嘉, 李江. 不同掺杂浓度的Gd2O2S:Tb闪烁陶瓷的制备、微观结构与光学性能[J]. 无机材料学报, 2026, 41(9): 1330-1338.
HUANG Dong, WU Junlin, HU Chen, WANG Yanbin, CHEN Yuyang, LI Tingsong, YANG Wenqin, JIANG Xingfen, ZHOU Jianrong, SUN Zhijia, LI Jiang. Fabrication, Microstructure and Optical Properties of Gd2O2S:Tb Scintillation Ceramics with Different Doping Concentrations[J]. Journal of Inorganic Materials, 2026, 41(9): 1330-1338.
| Composition | Lattice parameter/nm | ||
|---|---|---|---|
| a | b | c | |
| (Gd0.995Tb0.005)2O2S | 0.38523 | 0.38523 | 0.66672 |
| (Gd0.99Tb0.010)2O2S | 0.38522 | 0.38522 | 0.66658 |
| (Gd0.98Tb0.020)2O2S | 0.38517 | 0.38517 | 0.66642 |
| (Gd0.975Tb0.025)2O2S | 0.38506 | 0.38506 | 0.66641 |
| (Gd0.97Tb0.030)2O2S | 0.38502 | 0.38502 | 0.66637 |
| (Gd0.965Tb0.035)2O2S | 0.38500 | 0.38500 | 0.66624 |
| (Gd0.96Tb0.040)2O2S | 0.38498 | 0.38498 | 0.66623 |
| (Gd0.95Tb0.050)2O2S | 0.38496 | 0.38496 | 0.66612 |
Table 1 Lattice parameters of Gd2O2S:Tb powders with different doping concentrations
| Composition | Lattice parameter/nm | ||
|---|---|---|---|
| a | b | c | |
| (Gd0.995Tb0.005)2O2S | 0.38523 | 0.38523 | 0.66672 |
| (Gd0.99Tb0.010)2O2S | 0.38522 | 0.38522 | 0.66658 |
| (Gd0.98Tb0.020)2O2S | 0.38517 | 0.38517 | 0.66642 |
| (Gd0.975Tb0.025)2O2S | 0.38506 | 0.38506 | 0.66641 |
| (Gd0.97Tb0.030)2O2S | 0.38502 | 0.38502 | 0.66637 |
| (Gd0.965Tb0.035)2O2S | 0.38500 | 0.38500 | 0.66624 |
| (Gd0.96Tb0.040)2O2S | 0.38498 | 0.38498 | 0.66623 |
| (Gd0.95Tb0.050)2O2S | 0.38496 | 0.38496 | 0.66612 |
| Composition | Lattice parameter/nm | ||
|---|---|---|---|
| a | b | c | |
| (Gd0.995Tb0.005)2O2S | 0.38510 | 0.38510 | 0.66620 |
| (Gd0.99Tb0.010)2O2S | 0.38491 | 0.38491 | 0.66589 |
| (Gd0.98Tb0.020)2O2S | 0.38453 | 0.38453 | 0.66582 |
| (Gd0.975Tb0.025)2O2S | 0.38444 | 0.38444 | 0.66578 |
| (Gd0.97Tb0.030)2O2S | 0.38447 | 0.38447 | 0.66565 |
| (Gd0.965Tb0.035)2O2S | 0.38443 | 0.38443 | 0.66561 |
| (Gd0.96Tb0.040)2O2S | 0.38442 | 0.38442 | 0.66551 |
| (Gd0.95Tb0.05)2O2S | 0.38441 | 0.38441 | 0.66550 |
Table 2 Lattice parameters of Gd2O2S:Tb ceramics with different doping concentrations
| Composition | Lattice parameter/nm | ||
|---|---|---|---|
| a | b | c | |
| (Gd0.995Tb0.005)2O2S | 0.38510 | 0.38510 | 0.66620 |
| (Gd0.99Tb0.010)2O2S | 0.38491 | 0.38491 | 0.66589 |
| (Gd0.98Tb0.020)2O2S | 0.38453 | 0.38453 | 0.66582 |
| (Gd0.975Tb0.025)2O2S | 0.38444 | 0.38444 | 0.66578 |
| (Gd0.97Tb0.030)2O2S | 0.38447 | 0.38447 | 0.66565 |
| (Gd0.965Tb0.035)2O2S | 0.38443 | 0.38443 | 0.66561 |
| (Gd0.96Tb0.040)2O2S | 0.38442 | 0.38442 | 0.66551 |
| (Gd0.95Tb0.05)2O2S | 0.38441 | 0.38441 | 0.66550 |
Fig. 4 FESEM images of fracture surfaces of the Gd2O2S:Tb ceramics with different doping concentrations (in atomic) (a) 0.5%; (b) 2.0%; (c) 3.0%; (d) 3.5%; (e) 4.0%
Fig. 5 Total optical transmittance curves of Gd2O2S:Tb ceramics (1 mm in thickness) with different doping concentrations (in atomic) Colorful figure is available on website
Fig. 8 PL decay curves and their fitted curves of Gd2O2S:Tb ceramics with different doping concentrations (in atomic) (a) 0.5%; (b) 2.0%; (c) 3.0%; (d) 3.5%; (e) 4.0%. λex=315 nm, λem=545 nm
Fig. 9 (a) XEL spectra and (b) normalized integral XEL intensity curve in the range of 350-800 nm of Gd2O2S:Tb ceramics with different doping concentrations (in atomic) Colorful figures are available on website
| Doping concentration/% (in atomic) | 1.0 | 2.0 | 3.0 | 3.5 | 4.0 |
|---|---|---|---|---|---|
| Neutron light output/(ph·n-1) | 197 | 201 | 218 | 205 | 201 |
Table 3 Relative light output of Gd2O2S:Tb ceramics with different doping concentrations
| Doping concentration/% (in atomic) | 1.0 | 2.0 | 3.0 | 3.5 | 4.0 |
|---|---|---|---|---|---|
| Neutron light output/(ph·n-1) | 197 | 201 | 218 | 205 | 201 |
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