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Two Eu(Ⅲ) complexes,(tris-4,4,4-trifluoro-1-phenyl-1,3-butanedione)(1,10-phenanthroline)europium(Ⅲ) [Eu(tpb-H) 3(phen)] and(tris-4,4,4-trifluoro-1-phenyl-1,3-butanedione)(2,2’-bipyridine)europium(Ⅲ)[Eu(tpb-H) 3(bipy)] were synthesized from bi-dental oxygen and nitrogen ligands.Luminescent polymers were fabricated by incorporating deuterated Eu(Ⅲ) complexes in poly(methylmethacrylate)(PMMA) matrixes.Luminescent PMMA containing Eu(tpb-D) 3(phen) exhibited relatively higher quantum yield[Φ,(48.7±4)%],faster radiation rate(k r,7.49×10 2 s-1),sharper red emission[full width at half maximum(FWHM),6.3 nm] and larger stimulated emission cross-section(SEC,1.29×10-20 cm 2).The value of SEC is the same order as that of Nd-glass laser for practical use.Additionally,the thermal properties of Eu(tpb-H) 3(phen),Eu(tpb-H) 3(bipy),Eu(tpb-D) 3(phen)-PMMA,and Eu(tpb-H) 3(bipy)PMMA were studied,indicating that the Eu(Ⅲ) complexes and luminescent PMMA can be used for a long-term period in high temperature environment.Prepared luminescent polymers including Eu(tpb-D) 3(phen) have promising applications in novel organic Eu(Ⅲ) devices,such as the high-power laser materials and optical fibers.
Two Eu (Ⅲ) complexes, (tris-4,4,4-trifluoro-1-phenyl-1,3-butanedione (1,10-phenanthroline) europium (Ⅲ) ] and (tris-4,4,4-trifluoro- 1 -phenyl-1,3-butanedione (2,2’-bipyridine) europium (Ⅲ) [Eu (tpb-H) 3 (bipy)] were synthesized from bi-dental oxygen and nitrogen ligands.Luminescent polymers were fabricated by incorporating deuterated Eu (Ⅲ) complexes in poly (methylmethacrylate) (PMMA) matrixes. Luminescent PMMA containing Eu (tpb- (48.7 ± 4)%], faster radiation rate (kr, 7.49 × 10 2 s-1), sharper red emission [full width at half maximum (FWHM), 6.3 nm] and larger stimulated emission cross-section 1.29 × 10-20 cm 2) The value of SEC is the same order as that of Nd-glass laser for practical use. Additionally, the thermal properties of Eu (tpb-H) 3 (phen), Eu (tpb-H (Bipy) PMMA and Eu (tpb-H) 3 (bipy) PMMA were studied, indicating that the Eu (Ⅲ) complexes and luminescent PMMA can be used for a long-term period in hig h temperature environment. Prepared luminescent polymers including Eu (tpb-D) 3 (phen) have promising applications in novel organic Eu (III) devices, such as the high-power laser materials and optical fibers.