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Synthesis of Persistent Luminescent Nanoparticles for Rewritable Displays and Illumination Applications
Published on: September 13, 2024
Photoluminescent materials based on silica doped with lanthanide complexes of 4'-formylbenzo-15-crown-5
Paula C R Soares-Santos1, Rute A S Ferreira, Tito Trindade
1Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
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.
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