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Synthesis and spectroscopic properties of monocyclic and bicyclic erbium phtalocyanines

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Bimacrocyclic and monomacrocyclic erbium phtalocyanines have been synthesized and their luminescence spectra and lifetimes have been studied. The bi-planar structure of ErPc2 complexes, although interesting at first sight, is non-luminescent because of a strong absorption band near 1.5 μm. However, the luminescence of the erbium ion can be recovered after oxidation or reduction of the macrocycle. Monomacrocyclic erbium phtalocyanines exhibit a strong luminescence of erbium as a result of the energy transfer between the excited phtalocyanine macrocycle and the erbium ion. With a perchlorinated phtalocyanine and a perdeuterated axial ligand in a deuterated solvent, the luminescence lifetime reaches 5 μs, which is the maximum lifetime found for conventional perdeutarated ligands. The large absorption cross-section of phtalocyanine in the red may counter-balance the fast luminescence lifetime, allowing the hope for a new all-organic integrated optical amplifier device.

Affiliations: 1: Thales Research and Technology, Route Départementale 128, 91767 Palaiseau Cedex, France; PPSM and D'Alembert Institute, Ecole Normale Supérieure de Cachan, 61, avenue du Président Wilson, 94235 Cachan Cedex, France; 2: Thales Research and Technology, Route Départementale 128, 91767 Palaiseau Cedex, France; 3: PPSM and D'Alembert Institute, Ecole Normale Supérieure de Cachan, 61, avenue du Président Wilson, 94235 Cachan Cedex, France

10.1163/156856708783623474
/content/journals/10.1163/156856708783623474
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/content/journals/10.1163/156856708783623474
2008-02-01
2016-12-06

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