The neutral homoleptic Ln(III) complex Ln(Tp)3 (Ln¼Sm, Eu, Tb, Yb; Tp¼hydrotris(pyrazol-1-yl)borate) were used as dopants for the preparation of novel photoluminescent poly(methyl methacrylate) glasses indicated as Ln(Tp)3@PMMA. The doped polymers containing samarium, europium and terbium derivatives showed emission associated to f–f transitions in the visible range upon excitation with UV light, while a NIR emission was obtained from Yb(Tp)3@PMMA. The maximum incident wavelength able to induce emissions from the Ln(Tp)3-doped polymers depends upon the choice of the lanthanide ion. No meaningful antenna-effect was instead observed using dysprosium as metal centre.

Preparation of photoluminescent PMMA doped with tris(pyrazol-1-yl)borate lanthanide complexes

BORTOLUZZI, Marco;PAOLUCCI, Gino;ENRICHI, FRANCESCO;
2012-01-01

Abstract

The neutral homoleptic Ln(III) complex Ln(Tp)3 (Ln¼Sm, Eu, Tb, Yb; Tp¼hydrotris(pyrazol-1-yl)borate) were used as dopants for the preparation of novel photoluminescent poly(methyl methacrylate) glasses indicated as Ln(Tp)3@PMMA. The doped polymers containing samarium, europium and terbium derivatives showed emission associated to f–f transitions in the visible range upon excitation with UV light, while a NIR emission was obtained from Yb(Tp)3@PMMA. The maximum incident wavelength able to induce emissions from the Ln(Tp)3-doped polymers depends upon the choice of the lanthanide ion. No meaningful antenna-effect was instead observed using dysprosium as metal centre.
2012
132
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10278/30458
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