Spectroscopic study performed on films of (3-trimethoxysilylpropyl) ethylenediamine and a dental material (acrylic resin) doped with the luminescent complexes Eu(fod)3.2H2O and Eu(fod)3.terpy

Abstract By using (3-trimethoxysilylpropyl) ethylenediamine (TSPED) and a dental material (acrylic resin) as precursors, self-standing films doped with the luminescent complexes Eu(fod) 3 ·2H 2 O and Eu(fod) 3 ·terpy were prepared. The doped films were so studied from a spectroscopic point of view. Is verified that the film composition exerts remarkable effects on both, the intensity and lifetime of the emission process. Acrylic resin films reduces the intensity of the emission process, but increases the lifetime of a such process, in comparison with TSPED films, for which an opposite behavior is observed. The measured lifetimes for the emission process for the compounds Eu(fod) 3 ·2H 2 O in TSPED and acrylic resin films are 306 and 369 μs, respectively. For the same film matrices, the measured lifetimes for the complex Eu(fod) 3 ·terpy gave the values 347 and 880 μs, respectively.