title: Luminescent properties and energy transfer in the green phosphors LaBSiO5:Tb3+, Ce3+.
abstract: LaBSiO5 phosphors doped with Ce(3+) and Tb(3+) were synthesized using the conventional solid-state method at 1100 °C. The phase purity and luminescent properties of these phosphors are investigated. LaBSiO5:Tb(3+) phosphors show intense green emission, and LaBSiO5 phosphors doped with Ce(3+) show blue-violet emission under UV light excitation. LaBSiO5 phosphors co-doped with Ce(3+) and Tb(3+) exhibit blue-violet and green emission under excitation by UV light. The blue-violet emission is due to the 5d-4f transition of Ce(3+) and the green emission is ascribed to the (5) D4 → (7) F5 transition of Tb(3+). The spectral overlap between the excitation band of Tb(3+) and the emission band of Ce(3+) supports the occurrence of energy transfer from Ce(3+) to Tb(3+), and the energy transfer process was investigated.
authors.affiliation: Engineering Research Center of Biopolymer Functional Materials of Yunnan, Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Districts, School of Chemistry and Biotechnology, Yunnan Minzu University Kunming, Yunnan, 650500, People's Republic of China.
authors.forename: Zhengliang
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Engineering Research Center of Biopolymer Functional Materials of Yunnan, Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Districts, School of Chemistry and Biotechnology, Yunnan Minzu University Kunming, Yunnan, 650500, People's Republic of China.
authors.forename: Ping
authors.initials: P
authors.lastname: Cheng
authors.affiliation: Yunnan Academy of Tobacco Science, Kunming, 650106, People's Republic of China.
authors.forename: Pei
authors.initials: P
authors.lastname: He
authors.affiliation: Engineering Research Center of Biopolymer Functional Materials of Yunnan, Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Districts, School of Chemistry and Biotechnology, Yunnan Minzu University Kunming, Yunnan, 650500, People's Republic of China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Engineering Research Center of Biopolymer Functional Materials of Yunnan, Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Districts, School of Chemistry and Biotechnology, Yunnan Minzu University Kunming, Yunnan, 650500, People's Republic of China.
authors.forename: Yayun
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Engineering Research Center of Biopolymer Functional Materials of Yunnan, Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Districts, School of Chemistry and Biotechnology, Yunnan Minzu University Kunming, Yunnan, 650500, People's Republic of China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Zhou
mesh_terms: D002563:Cerium / Q000737:chemistry*; D004735:Energy Transfer; D007811:Lanthanum / Q000737:chemistry; D049449:Luminescence; D049408:Luminescent Agents / Q000138:chemical synthesis / Q000737:chemistry*; D008163:Luminescent Measurements / Q000379:methods; D013725:Terbium / Q000737:chemistry*; D014466:Ultraviolet Rays; D014961:X-Ray Diffraction
chemical_list: D049408:Luminescent Agents; D013725:Terbium; D002563:Cerium; D007811:Lanthanum
keywords: energy transfer; luminescent properties; phosphor