发光学报Issue(10)：1101-1105,5.DOI:10.3788/fgxb20153610.1101
12CaO·7Al2O3：Ce3+透明陶瓷的制备及其闪烁特性研究
Synthesis and Scintillation Properties of 12CaO·7Al2 O3:Ce3+ Transparent Ceramics
摘要
Abstract
12CaO·7Al2 O3:Ce3+( C12A7:x%Ce3+) transparent ceramics were synthesized by a solid state method. Upon 350 nm UV excitation, a broad emission band located around 440 nm can be observed and it can be attributed to the transitions from 5d1 to 2 F5/2 and 2 F7/2 of Ce3+, respective-ly. It can be seen that the emitting intensity increases with the increasing of Ce3+ doping concentra-tion. When the mole fraction of Ce3+ exceeds 0. 7%, other impurities appear. To enhance the emit-ting intensity, C12A7:0. 5%Ce3+ transparent ceramics were prepared by a self-propagating combus-tion method. For the samples annealed in H2 ambient, the scintillation properties, such as the emitting intensity and decay time, are improved by controlling sorts and amounts of encaged anions in C12A7. The experiment results show that Ce3+ doped C12A7 might be a potential scintillation material.关键词
12CaO·7Al2O3/Ce3+/闪烁特性/衰减时间/陶瓷Key words
12CaO·7Al2 O3/Ce3+/scintillation properties/decay time/ceramics分类
数理科学引用本文复制引用
吕玲,张猛,祝汉成,杨健,严端廷,刘春光,徐长山,刘玉学..12CaO·7Al2O3：Ce3+透明陶瓷的制备及其闪烁特性研究[J].发光学报,2015,(10):1101-1105,5.基金项目
国家自然科学基金(11074031,11374047,11304036)资助项目 （11074031,11374047,11304036）
