标题：Temperature Gradient Designing and Optical Properties of SrI2 and SrI2:Eu Crystals Grown by Edge-Defined Film-Fed Growth (EFG) Method
作者：Yao, Qian; Zhang, Junying; Liu, Lintao; Dong, Weimin; Li, Jing; Wang, Jiyang
作者机构：[Yao, Qian; Zhang, Junying; Liu, Lintao; Dong, Weimin; Li, Jing; Wang, Jiyang] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peopl 更多
通讯作者：Li, Jing;Li, J
通讯作者地址：[Li, J]Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China.
来源：JOURNAL OF ELECTRONIC MATERIALS
关键词：Crystal growth; scintillation materials; temperature field; optical; properties
摘要：In this work, SrI2 and SrI2:Eu5% single crystals with size of O10x60mm(3) and O10x30mm(3) were successfully grown by edge-defined film-fed growth (EFG) method. In the crystal growth process, the crack and turbidity of the crystal were solved by designing a temperature field, thereby optimizing crystal quality and obtaining crack-free crystals. X-ray diffraction analysis was performed on the grown crystals, and the optical properties of these crystals have been investigated at room temperature. Under the excitation of ultraviolet (UV) light, the crystals exhibit a single luminescence peak centered at 435nm ((ex)=350nm), and the photoluminescence (PL) decay time is 0.594s. In addition, the designed temperature field also provides a reference value for other crystals grown by EFG method.