Optical characteristics of Ce,Eu:YAG single crystal grown by Czochralski method
来源期刊：JOURNAL OF RARE EARTHS2019年第2期
论文作者：Jingfeng Zhang Guorui Gu Xiaoxuan Di Weidong Xiang Xiaojuan Liang
文章页码：145 - 150
摘 要：Eu-doped Ce:YAG single crystal（SC） was fabricated by the Czochralski method. The crystal structure,optical and photoelectric property of the constructed w-LED was investigated. The XRD and HRTEM results show that YAG crystal structure has little change when Eu3+, Ce3+ are doped. Absorption spectra and photoluminescence spectra show that the Ce,Eu:YAG single crystal can effectively absorb the 460 nm blue light to form a broadband emission center at 530 nm, decay curves of the crystal show that the energy transfer between Ce3+ and Eu3+ is highly suppressed. Compared with commercial Ce:YAG phosphor, Ce,Eu:YAG exhibits better thermal stability.
Jingfeng Zhang1，Guorui Gu2，Xiaoxuan Di2，Weidong Xiang2，Xiaojuan Liang2
1. College of Material Science and Engineering, Tongji University2. College of Chemistry and Materials Engineering, Wenzhou University
摘 要：Eu-doped Ce:YAG single crystal（SC） was fabricated by the Czochralski method. The crystal structure,optical and photoelectric property of the constructed w-LED was investigated. The XRD and HRTEM results show that YAG crystal structure has little change when Eu3+, Ce3+ are doped. Absorption spectra and photoluminescence spectra show that the Ce,Eu:YAG single crystal can effectively absorb the 460 nm blue light to form a broadband emission center at 530 nm, decay curves of the crystal show that the energy transfer between Ce3+ and Eu3+ is highly suppressed. Compared with commercial Ce:YAG phosphor, Ce,Eu:YAG exhibits better thermal stability.
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