| Luminescence properties of sol-gel derived silica gels doped and undoped with RE-complexes(RE=Eu,Tb) |
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| 引用本文： | LIN,Jun LI,Bin ZHANG,Hong-JieLaboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,China. Luminescence properties of sol-gel derived silica gels doped and undoped with RE-complexes(RE=Eu,Tb)[J]. 中国化学, 1997, 15(4): 327-335. DOI: 10.1002/cjoc.19970150407 |
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| 作者姓名： | LIN Jun LI Bin ZHANG Hong-JieLaboratory of Rare Earth Chemistry and Physics Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 China |
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| 作者单位： | LIN，Jun LI，Bin ZHANG，Hong-JieLaboratory of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun，Jilin 130022，China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China and Foundation of the National Personnel Ministry of China. |
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| 摘 要： | The luminescence properties of silica gels and silica gels doped with two rare earth complexes,Eu(TTA)3 and Tb(o-CBA)3 (TTA=thenoyltrifluocetate,o-CBA=o-chlorobenzoic acid) are reported and discussed.Pure silica gels show a blue luminescence,and the maximum excitation and emission wavelengths depend strongly on the solvents used.Both of the studied rare earth complexes exhibit the characteristic emissions of the rare earth ions in silica gels,i.e.,Eu3+5 Do→7 FJ(J=0,1,2,3,4),Tb3+5D4→7FJ(J=3,4,5,6) transitions.Compared with the pure RE-complexes powder,the silica gels doped with RE-complexes show fewer emission lines of the rare earth ions.Furthermore the rare earth ion (Tb3+) presents a longer lifetime (1346μs) in silica gel doped with Tb(o-CBA)3 than in pure Tb(o-CBA)3 powder (744μs).The reasons responsible for these results are discussed in the context.
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Luminescence properties of sol-gel derived silica gels doped and undoped with RE-complexes(RE=Eu,Tb) |
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| LIN,Jun LI,Bin ZHANG,Hong-JieLaboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin ,China. Luminescence properties of sol-gel derived silica gels doped and undoped with RE-complexes(RE=Eu,Tb)[J]. Chinese Journal of Chemistry, 1997, 15(4): 327-335. DOI: 10.1002/cjoc.19970150407 |
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| Authors: | LIN Jun LI Bin ZHANG Hong-JieLaboratory of Rare Earth Chemistry Physics Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin China |
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| Affiliation: | LIN,Jun LI,Bin ZHANG,Hong-JieLaboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,China |
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| Abstract: | The luminescence properties of silica gels and silica gels doped with two rare earth complexes, Eu(TTA)3 and Tb(o-CBA)3 (TTA=thenoyltrifluocetate, o-CBA=o-chlorobenzoic acid) are reported and discussed. Pure silica gels show a blue luminescence, and the maximum excitation and emission wavelengths depend strongly on the solvents used. Both of the studied rare earth complexes exhibit the characteristic emissions of the rare earth ions in silica gels, i.e., Eu3+ 5D0 → 7 FJ (J = 0, 1, 2, 3, 4), Tb3+ 5D4 → 7 FJ (J = 3, 4, 5, 6) transitions. Compared with the pure RE-complexes powder, the silica gels doped with RE-complexes show fewer emission lines of the rare earth ions. Furthermore the rare earth ion (Tb3+) presents a longer lifetime (1346 μs) in silica gel doped with Tb(o-CBA)3 than in pure Tb(o-CBA)3 powder (744 μs). The reasons responsible for these results are discussed in the context. |
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| Keywords: | Sol-gel method luminescence silica gel rare earth complexes |
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