CAJ | 학술논문

采用高温熔融法制备了掺 Tb3+硅酸盐闪烁玻璃，并加入多种具有敏化功能的稀土离子（ Ce3+/ Ce4+， Dy3+），通过测量样品的激发光谱和发射光谱研究各种稀土离子对 Tb3+发光性能的影响。结果表明：Tb3+掺杂浓度过高时会出现浓度淬灭现象，Tb3+质量分数为10%的样品发光强度最大。空气气氛下熔制的玻璃中同时含有Ce3+和 Ce4+，由于 Ce4+离子与 Tb3+离子存在对能量的竞争吸收，使 Tb3+的发光强度减弱。加入适量的 Dy3+离子可以敏化 Tb3+离子的发光。
채용고온용융법제비료참 Tb3+규산염섬삭파리，병가입다충구유민화공능적희토리자（ Ce3+/ Ce4+， Dy3+），통과측량양품적격발광보화발사광보연구각충희토리자대 Tb3+발광성능적영향。결과표명：Tb3+참잡농도과고시회출현농도쉬멸현상，Tb3+질량분수위10%적양품발광강도최대。공기기분하용제적파리중동시함유Ce3+화 Ce4+，유우 Ce4+리자여 Tb3+리자존재대능량적경쟁흡수，사 Tb3+적발광강도감약。가입괄량적 Dy3+리자가이민화 Tb3+리자적발광。
The silicate scintillating glasses doped with Tb3 + were synthesized by high-temperature melting method. Several rare earth ions(Ce3 + / Ce4 + ,Dy3 + )were added as sensitizer. The influence of rare earth ions on the luminescence of Tb3 + ions was studied by charactering excitation and emission spectra. The results showed that concentration quenching happened when doping concentration of Tb3 + was too high. The intensity of the luminescence reached to a maximum value when the concentration of Tb3 + was 10 wt % . The glass made by melting the sample in air contained both Ce3 + and Ce4 + . Because there was a competition between Ce4 + ion and Tb3 + ion in energy absorption,the glass melted in air presented a reduced luminescence of Tb3 + . It was also found that adding appropriate amount of Dy3 + ion conld sensitize the luminescence of Tb3 + .