Optical spectroscopy of Eu3+ and Tb3+ doped glass ceramics containing LiYbF4 nanocrystals
作者： Daqin Chen , Yunlong Yu , Ping Huang , Fangyi Weng , Hang Lin
DOI: 10.1063/1.3076111
关键词: Luminescence 、 Doping 、 Europium 、 Analytical chemistry 、 Spectroscopy 、 Inorganic chemistry 、 Terbium 、 Stark effect 、 Materials science 、 Glass-ceramic 、 Ionic bonding
摘要: The Eu3+ and Tb3+ doped glass ceramics containing tetragonal LiYbF4 nanocrystals were prepared. Stark splitting emission, the low electric dipole D50→F72 transition, long lifetime of evidenced partition rare earth into LiYbF4. For ceramic, intense ultraviolet emission Tb3+: G56, D53→F76 transition via cooperative sensitization Yb3+ bright blue luminescence originated from coupled state Yb3+–Yb3+ ionic pairs achieved under 976 nm excitation, ascribing to low-phonon-energy environment ions enriched in efficient Yb3+–Tb3+ or interionic interactions.
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