人工晶体学报2021，Vol.50Issue(10)：1951-1956,6.
(Gd0.99-x Yx Ce0.01)2Si2O7晶体的生长及发光特性
Growth and Crystal Luminescence Properties of Cerium Doped Yttrium-Gadolinium Pyrosilicate
摘要
Abstract
Novel cerium doped (Gd0.99-xYxCe0.01)2Si2O7(x=0. 1, 0. 2, 0. 3, 0. 4, 0. 5, 0. 6, 0. 7) (GYPS:Ce) scintillation crystals were grown by optical floating zone method, and phase identifications were carried out by X-ray diffraction (XRD). It belongs to orthorhombic of Pna21. Their photoluminescence ( PL ) and scintillation properties of as-grown crystals were characterized through vacuum ultra-violet ( VUV ) excitation and emission spectra, PL decay curves, X-ray excitation luminescence ( XEL) spectra,γ-ray pulse height spectra. The emission peaks of VUV and XEL spectra all locate around 360 nm corresponding to 5d→4f transition. The PL decay time of as grown samples are in the range of 29. 1 ns to 32. 9 ns. The scintillation decay time components are in the range of 28 ns to 68 ns and 256 ns to 583 ns. There has energy transfer behavior of Gd3+→Ce3+ in crystal.关键词
铈掺杂焦硅酸钇钆/浮区法/光学性能/闪烁晶体/衰减时间/光致发光Key words
GYPS:Ce single crystal/floating zone method/optical property/scintillation crystal/decay time/photoluminescence分类
数理科学引用本文复制引用
黄诗敏,万欢欢,杨帆,冯鹤..(Gd0.99-x Yx Ce0.01)2Si2O7晶体的生长及发光特性[J].人工晶体学报,2021,50(10):1951-1956,6.基金项目
National Natural Science Foundation of China(12175130,11875187,11775120) （12175130,11875187,11775120）
