Photoluminescent Materials Based on Silica Doped with Lanthanide Complexes of 4′-Formylbenzo-15-Crown-5
Abstract:Photoluminescent materials were prepared by introducing lanthanide complexes of 4′-formylbenzo-15-crown-5 (C15H20O6) into a silica matrix obtained by the sol–gel method. The new lanthanide complexes [Ln(C15H20O6)(NO3)3(H2O)2] (Ln3+ = Sm3+, Eu3+ and Tb3+) were synthesized and were fully characterised using spectroscopic techniques, and elemental and thermogravimetric analysis. Photoluminescence measurements were performed for the isolated Eu3+ and Tb3+ complexes as well as for their related silica based materials. A detailed comparative analysis on the photoluminescent properties of the Eu3+ complex and of its derived silica material was carried out.
Document Type: Research Article
Publication date: 2010-04-01
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