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White‐emitting phosphor Ba 2 B 2 O 5 :Ce 3+ , Tb 3+ , Sm 3+ : Luminescence, energy transfer, and thermal stability
Author(s) -
Xu Shuchao,
Wang Zhijun,
Li Panlai,
Li Ting,
Bai Qiongyu,
Sun Jiang,
Yang Zhiping
Publication year - 2017
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.14766
Subject(s) - phosphor , luminescence , analytical chemistry (journal) , energy transfer , materials science , doping , ion , chemistry , optoelectronics , organic chemistry , chromatography , molecular physics
A series of Ba 2 B 2 O 5 : RE (RE=Ce 3+ /Tb 3+ /Sm 3+ ) phosphors were synthesized using high‐temperature solid‐state reaction. The X‐ray diffraction (XRD), luminescent properties, and decay lifetimes are utilized to characterize the properties of the phosphors. The obtained phosphors can emit blue, green, and orange‐red light when single‐doped Ce 3+ , Tb 3+ , and Sm 3+ . The energy can transfer from Ce 3+ to Tb 3+ and Tb 3+ to Sm 3+ in Ba 2 B 2 O 5 , but not from Ce 3+ to Sm 3+ in Ce 3+ and Sm 3+ codoped in Ba 2 B 2 O 5 . However, the energy can transfer from Ce 3+ to Sm 3+ through the bridge role of Tb 3+ . We obtain white emission based on energy transfer of Ce 3+ →Tb 3+ →Sm 3+ ions. These results reveal that Ce 3+ /Tb 3+ /Sm 3+ can interact with each other in Ba 2 B 2 O 5 , and Ba 2 B 2 O 5 may be a potential candidate host for white‐light‐emitting phosphors.