| 钛宝石晶体的泡生法生长和闪烁发光性能 |
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| 引用本文： | 王庆国,刘波,罗平,唐慧丽,吴锋,康森,段金柱,王勤峰,徐军. 钛宝石晶体的泡生法生长和闪烁发光性能[J]. 人工晶体学报, 2021, 50(4): 762-767 |
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| 作者姓名： | 王庆国 刘波 罗平 唐慧丽 吴锋 康森 段金柱 王勤峰 徐军 |
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| 作者单位： | 同济大学物理科学与工程学院,上海 200092;天通银厦新材料有限公司,银川 750001;天通控股股份有限公司,海宁 314412 |
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| 基金项目： | 上海蓝宝石单晶工程技术研究中心项目(14DZ2252500) |
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| 摘 要： | 采用泡生法生长了115 kg级大尺寸钛宝石(Ti:Al2 O3)晶体,晶体外形完整无开裂,制备了口径达?300 mm的高质量大口径钛宝石单晶样品.在X射线和α粒子激发下测试了晶体的闪烁发光性能.结果表明,Ti:Al2 O3晶体的闪烁发光包含近红外和近紫外发光.近红外发光来源于Ti3+特征发射,效率较高,衰减时间慢.近紫...
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| 关 键 词： | 钛宝石 单晶生长 泡生法 闪烁发光性能 |
| 收稿时间： | 2021-04-07 |
Crystal Growth and Scintillation Luminescence Properties of Ti:Al2O3 Crystals Grown with Kyropoulos Method |
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| WANG Qingguo,LIU Bo,LUO Ping,TANG Huili,WU Feng,KANG Sen,DUAN Jinzhu,WANG Qinfeng,XU Jun. Crystal Growth and Scintillation Luminescence Properties of Ti:Al2O3 Crystals Grown with Kyropoulos Method[J]. Journal of Synthetic Crystals, 2021, 50(4): 762-767 |
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| Authors: | WANG Qingguo LIU Bo LUO Ping TANG Huili WU Feng KANG Sen DUAN Jinzhu WANG Qinfeng XU Jun |
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| Affiliation: | 1. School of Physics and Engineering, Tongji University, Shanghai 200092, China;2. TDG Yinxia New Material Co., Ltd., Yinchuan 750001, China;3. TDG Holding Co., Ltd., Haining 314412, China |
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| Abstract: | Large-sized Ti:Al2O3 crystals with the weight of 115 kg were grown successfully by Kyropoulos method. The grown crystals have complete shape without any cracking. Large Ti:Al2O3 single crystal sample with diameter of 300 mm was prepared. The scintillation luminescence properties of the grown crystals were tested under the X-ray and α particle excitation. The results show that the scintillation luminescence of Ti:Al2O3 crystals include near infrared band and near ultraviolet band. The near infrared emission comes from the characteristic emission of Ti3+, which has high efficiency and slow decay time. The near ultraviolet emission comes from Ti-localized exciton emission and F+center, which has the fast decay time. The light output is related to the self-absorption caused by Ti-doping. Under the excitation of the α particles, the light yield reaches up to 1 130.5 pe/MeV, and the fast component is 29.6 pe/MeV. |
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| Keywords: | Ti:Al2O3 single crystal growth Kyropoulos method scintillation luminescence property |
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