发光学报2026，Vol.47Issue(4)：637-647,11.DOI:10.37188/CJL.20250295
Pr3+对Ce3+掺杂高钆铝硼硅酸盐氟氧玻璃发光性能及能量传递机理
Effects of Pr3+on Luminescence Performance and Energy Transfer Mechanisms in Ce3+-doped High-gadolinium Aluminoborosilicate Oxyfluoride Glass
摘要
Abstract
Scintillating glass,as a key material for high-energy radiation detection,shows significant application pros-pects in large-size,low-cost radiation detection systems.However,in high-Gd-content scintillating glasses,cross-relaxation among Gd3+ions limits energy transfer efficiency,thereby restricting further improvement of luminescence performance.In this study,a high-temperature melting method was employed to synthesize Pr3+and Ce3+co-doped gadolinium-rich boron-aluminosilicate oxyfluoride glass(Gd2O3-GdF3-B2O3-Al2O3-SiO2-CeO2,referred to as CS glass)under a reduc-ing atmosphere(CO).Using absorption,reflection,and luminescence spectroscopy,we systematically investigated the influence of Pr3+doping on the optical and scintillation properties of Ce3+-doped scintillating glass,along with the energy transfer mechanisms among Pr3+,Ce3+and Gd3+rare-earth ions.The fluorescence intensity of this glass under X-ray excitation was compared with that of BGO crystal.Results demonstrate that low-concentration Pr3+doping sig-nificantly enhances the luminescence intensity of CS glass excited at 275 nm,increasing the X-ray excited optical yield by 60%.A pronounced 5d-4f transition of Pr3+was observed in low-Pr3+-doped CS glass,accompanied by Pr3+→Gd3+→Ce3+and Gd3+→Pr3+energy transfer.In glasses with higher Pr3+concentrations,the 4f-4f transition of Pr3+dom-inates,while Gd3+→Pr3+energy transfer persists,resulting in prolonged fluorescence decay time for both Gd3+and Ce3+.关键词
Pr3+掺杂/Ce3+掺杂/高钆闪烁玻璃/光致发光/闪烁发光Key words
Pr3+doped/Ce3+doped/high-gadolinium scintillating glass/photoluminescence/scintillation分类
数理科学引用本文复制引用
周成功,陈丹平,唐景平,李溦长,赵明君,丁雪凝,韩智慧,胡丽丽,陈舒拉..Pr3+对Ce3+掺杂高钆铝硼硅酸盐氟氧玻璃发光性能及能量传递机理[J].发光学报,2026,47(4):637-647,11.基金项目
国家自然科学基金(62474063) （62474063）
稀土新材料技术创新中心开放课题(CXZX-D-202417-0028)Supported by National Natural Science Foundation of China(62474063) （CXZX-D-202417-0028）
Open Research Initiative at Rare Earth Advanced Materials Technology Innovation Center(CXZX-D-202417-0028) （CXZX-D-202417-0028）
