Synthesis and co-luminescence properties of Tb~(3+)-methacrylic acid-1,10-phenanthroline complexes d

• 出 处: Rare Metals
• 发表日期: 2012年05期
• 关键词: complexes luminescence calorimetry adjusting luminescent colors absorbed decreas

A series of rare earth complexes Tb_(1-x)Eu_x(MAA)_3phen(x=0.00, 0.01, 0.03, 0.05, 0.07, 0.09, 0.10, 0.30, and 0.50) were synthesized with MAA as the first ligand and phen as the second ligand. The complexes were characterized by means of FT-IR, thermogravimetry-differential scanning calorimetry (TG-DSC), XRD, UV absorption spectra, and photoluminescence spectra (PL). The results show that the luminescence intensity of Eu~(3+)increases as Tb~(3+) transfer the absorbed energy to Eu~(3+) in the complexes. The emission of Tb~(3+) at 545 nm is observed and increasing with x decreasing. When x=0.01, the luminescence intensity reaches the maximum value, and the emission intensity of Tb 3+ at 545 nm and Eu~(3+) at 614 nm are almost equal. It realizes the co-luminescence of Eu~(3+) and Tb~(3+) . We can obtain complexes with different colors by adjusting the ratio of Eu~(3+) to Tb~(3+) .

A series of rare earth complexes Tb 1-x Eu_x MAA_3phen (x = 0.00, 0.01, 0.03, 0.05, 0.07, 0.09, 0.10, 0.30 and 0.50) were synthesized with MAA as the first ligand and phen as The second ligand. The results were that by luminescence spectra of Eu ~ (X), FT-IR, thermogravimetry-differential scanning calorimetry (TG-DSC), XRD, UV absorption spectra, and photoluminescence spectra The emission of Tb ~ (3+) at 545 nm is observed and increasing with x decreasing. When x = 0.01 , the luminescence intensity reaches the maximum value, and the emission intensity of Tb 3+ at 545 nm and Eu ~ (3+) at 614 nm are almost equal. It realizes the co-luminescence of Eu ~ (3+) and Tb ~ (3+). We can obtain complexes with different colors by adjusting the ratio of Eu ~ (3+) to Tb ~ (3+).