title: Luminescence and energy transfer of the color-tunable phosphor Li₆Gd(BO₃)₃:Tb³⁺/Bi³⁺, Eu³⁺.
abstract: Bi(3+)/Tb(3+), Eu(3+) co-doped Li6Gd(BO3)3 (LGBO) phosphors were synthesized via a traditional solid-state method. Phase purity was investigated using X-ray diffraction, absorption strength of the phosphors were investigated by UV-vis absorption spectra, and the photoluminescence properties of the phosphors were studied systematically. Results showed that the emission intensity of Bi(3+), Eu(3+) co-doped LBOG was 2.76 times higher than that of Eu(3+)-doped LGBO irradiated at 275 nm, thereby implying the possibility of energy transfer from Bi(3+) to Eu(3+). The excitation spectra of Tb(3+), Eu(3+) co-doped LGBO phosphors are broader in comparison with single-doped phosphors and show tunable colors from green to yellow to orange-red when the ratio of Tb(3+) to Eu(3+) is adjusted These results demonstrate that LGBO:Tb(3+), Eu(3+) phosphors have potential use in light-emitting diodes.
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
authors.forename: Peican
authors.initials: P
authors.lastname: Chen
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
authors.forename: Fuwang
authors.initials: F
authors.lastname: Mo
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
authors.forename: Anxiang
authors.initials: A
authors.lastname: Guan
authors.affiliation: Guangxi Key Laboratory of Agricultural Products Processing (Cultivating Base), Colleges and Universities Key Laboratory for Efficient Use of Agricultural Resources in the Southeast of Guangxi, College of Chemistry and Material, Yulin Normal University, Yulin, Guangxi 537000, China.
authors.forename: Rongfang
authors.initials: R
authors.lastname: Wang
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
authors.forename: Guofang
authors.initials: G
authors.lastname: Wang
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
authors.forename: Siyu
authors.initials: S
authors.lastname: Xia
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China. Electronic address: zhouliyatf@163.com.
authors.forename: Liya
authors.initials: L
authors.lastname: Zhou
mesh_terms: D003116:Color; D003124:Colorimetry / Q000379:methods; D004307:Dose-Response Relationship, Radiation; D004735:Energy Transfer / Q000528:radiation effects*; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D008029:Lighting / Q000379:methods*; D008163:Luminescent Measurements / Q000379:methods*; D008422:Materials Testing; D011829:Radiation Dosage
chemical_list: D028581:Lanthanoid Series Elements
keywords: Luminescence; Optical properties; Phosphor