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Pink light emitting long-lasting phosphorescence in Sm3+-doped CdSiO3
Institution:1. Department of Chemistry, Jinan University Guangzhou, Guangdong 510632, PR China;2. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China;1. Department of Chemistry, M. V. Lomonosov Moscow State University, 119991 Moscow, Russian Federation;2. A. N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russian Federation;1. Department of Physics, Qufu Normal University, Qufu, Shandong 273165, China;2. Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China;3. College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China;1. School of Materials Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea;2. Division of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea;3. College of Materials, and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University, Simingnan Road 422, Xiamen 361005, PR China;1. College of Mathematics and Physics, Jinggangshan University, Ji''an, 343009, China;2. School of Materials Science and Engineering, Xiamen University of Technology, Xiamen, 361024, China
Abstract:Novel pink light emitting long-lasting afterglow CdSiO3:Sm3+ phosphors are prepared by the conventional high-temperature solid-state method and their luminescent properties are investigated. XRD and photoluminescence (PL) spectra are used to characterize the synthesized phosphors. The phosphors are well crystallized by calcinations at 1050°C for 5 h. These phosphors emit pink light and show long-lasting phosphorescence after they are excited with 254 nm ultraviolet light. The phosphorescence lasts for nearly 5 h in the light perception of the dark-adapted human eye (0.32 mcd/m2). The phosphorescence mechanism is also investigated. All the results indicate that these phosphors have promising potential practical applications.
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