Crystal growth and characterization of Tm doped mixed rare-earth aluminum perovskite |
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| Authors: | Daisuke Totsuka Takayuki Yanagida Makoto Sugiyama Yutaka Fujimoto Yuui Yokota Akira Yoshikawa |
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| Affiliation: | 1. Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan;2. Nihon Kessho Kogaku Co., Ltd., 810-5 Nobe-cho, Tatebayashi, Gunma 374-0047, Japan;3. New Industry Creation Hatchery Center (NICHe), 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;2. University of Chinese Academy of Sciences, Beijing 100039, China;1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;2. University of Chinese Academy of Sciences, Beijing 100039, China;3. Department of Optoelectronic Engineering, Jinan University, Guangzhou, Guangdong 510632, China;4. Fujian Institute of Research on the Structure of the Matter, Chinese Academy of Sciences, Fuzhou 350002, China;1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;2. University of Chinese Academy of Sciences, Beijing 100039, China;3. School of Physics Science and Engineering, Tongji University, Shanghai 200092, China;4. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;5. Department of Optoelectronic Engineering, Jinan University, Guangzhou, Guangdong 510632, China;1. Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Guangzhou, Guangdong, 510630, China;2. Department of Optoelectronic Engineering, Jinan University, Guangzhou, Guangdong, 510632, China;3. Key Laboratory of High Power Laser Materials, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China;1. Guangdong Provincial Engineering Research Center of Crystal and Laser Technology, Guangzhou, Guangdong 510632, China;2. Department of Optoelectronic Engineering, Jinan University, Guangzhou, Guangdong 510632, China;3. School of Science, Beijing Jiaotong University, Beijing 100044, China;4. Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100094, China |
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| Abstract: | In this work, we present results of structural characterization and optical properties including radio luminescence of (LuxGdyY0.99?x?yTm0.01)AP single crystal scintillators for (x, y) = (0.30, 0.19), (0, 0.19) and (0, 0) grown by the micro-pulling-down (μ-PD) method. The grown crystals were single phase materials with perovskite structure (Pbnm) as confirmed by XRD and had a good crystallinity. The distribution of the crystal constituents in growth direction was evaluated, and significant segregation of Lu and Gd was detected in (Lu0.30Gd0.19Y0.50Tm0.01)AP sample. The crystals demonstrated 70% transmittance in visible wavelength range and some absorption bands due to Tm3+, Gd3+ and color centers were exhibited in 190–900 nm. The radioluminescence measurement under X-ray irradiation demonstrated several emission peaks ascribed to 4f–4f transitions of Tm3+ and Gd3+. The ratio of emission intensity in longer wavelength range was increased when Y was replaced by Lu or Gd. |
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