首页 | 本学科首页   官方微博 | 高级检索  
     


Crystal growth of LiF/LiYF4 eutectic crystals and their luminescent properties
Affiliation:1. Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan;2. New Industry Creation Hatchery Center (NICHe), 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;3. Tokuyama Cooperation, 3-2-1 Kasumiagseki, Chiyoda-ku, Tokyo 100-8983, Japan;1. Institute for Materials Research, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan;2. New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10, Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;1. Institute for Materials Research, Tohoku University 2-1-1, Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan;2. New Industry Creation Hatchery Center (NICHe), Tohoku University 6-6-10, Aramaki, Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan;3. Institute of Physics AS CR 10 Cukrovarnicka, Prague 6, 16200 Czech Republic;4. C&A Corporation 6-6-40, Aramaki, Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan;1. Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-Cho, Ikoma, Nara 630-0192, Japan;2. Dept. of Applied Chemistry, Graduate School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan;3. Oxide Corporation, 1747-1 Makihara, Mukawa-cho, Hokuto-shi, Yamanashi 408-0302, Japan;1. Shanghai Nuclear Engineering Research & Design Institute, Shanghai 200233, China;2. State Key Laboratory of Particle Detection and Electronics, Beijing 100049, China;3. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800 China;4. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;5. Department of Physics, Nanjing University, Nanjing 210093, China;1. College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China;2. Key Laboratory of Eco-materials Advanced Technology, Fuzhou University, Fuzhou, Fujian 350108, China;3. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujain 350002, China;1. Department of Physics, Kyungpook National University, Daegu, 41566, South Korea;2. SSN Research Centre, SSN College of Engineering, Kalavakkam, Tamilnadu, 603 110, India;3. Materials Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamilnadu, 603 102, India;4. Department of Radiological Science, Cheongju University, Cheongju, 28503, South Korea;5. APIIIT-RGUKT, R K Valley, Kadapa District, Andhra Pradesh, 516329, India;6. Sorabol College, 516, Taejong-ro, Gyeongju, Gyeongsanbuk-do, 780-711, South Korea
Abstract:Undoped and 0.5 mol% Ce-doped LiF–LiYF4 eutectic crystals were grown by the micro-pulling-down method at different growth rates. The SEM images of all the eutectic crystals showed LiF with rod-like structure in the LiYF4 matrix. The diameter of the rod phase systematically decreased with the increase of the growth rate. The radioluminescence spectra of cerium doped crystal under alpha-ray excitation showed emission peak at 325 nm related to Ce3+ 5d-4f transition. The white part in the cathodoluminescence image is considered to be due to Ce3+ ion in LiYF4 phase, according to the scanning electron microscopy (SEM) image in the same region.
Keywords:Scintillator  Eutectic  Light-guide  Rod-like
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号