Two 1530-nm emitting co-polymers have been synthesized by incorporating differently substituted erbium-porphyrin complexes into the conjugated backbone of a polyaryleneethynylene structure. While the near infrared (NIR) emission exhibits the typical narrow width of lanthanide ions, the absorption and excitation spectra are quite broad and extend in the red range more than in any other organo-lanthanide molecule. This indicates that highly pi-conjugated systems are effectively formed. For both polymers, however, the quantum efficiency is as low as in the isolated complexes, which suggests that the increased conjugation does not influence the intramolecular transfer and the quenching processes of the erbium ion. (c) 2006 Elsevier B.V. All rights reserved.

Pizzoferrato, R., Ziller, T., Paolesse, R., Mandoj, F., Micozzi, A., Ricci, A., et al. (2006). Optical properties of novel Er-containing co-polymers with emission at 1530 nm. CHEMICAL PHYSICS LETTERS, 426(1-3), 124-128 [10.1016/j.cplett.2006.05.071].

Optical properties of novel Er-containing co-polymers with emission at 1530 nm

PIZZOFERRATO, ROBERTO;PAOLESSE, ROBERTO;MANDOJ, FEDERICA;
2006

Abstract

Two 1530-nm emitting co-polymers have been synthesized by incorporating differently substituted erbium-porphyrin complexes into the conjugated backbone of a polyaryleneethynylene structure. While the near infrared (NIR) emission exhibits the typical narrow width of lanthanide ions, the absorption and excitation spectra are quite broad and extend in the red range more than in any other organo-lanthanide molecule. This indicates that highly pi-conjugated systems are effectively formed. For both polymers, however, the quantum efficiency is as low as in the isolated complexes, which suggests that the increased conjugation does not influence the intramolecular transfer and the quenching processes of the erbium ion. (c) 2006 Elsevier B.V. All rights reserved.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - Fisica Sperimentale
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
English
Con Impact Factor ISI
Absorption; Electromagnetic wave emission; Optical properties; Porphyrins; Quantum theory; Conjugated systems; Near infrared (NIR) emission; Polyaryleneethynylene structure; Copolymers
Pizzoferrato, R., Ziller, T., Paolesse, R., Mandoj, F., Micozzi, A., Ricci, A., et al. (2006). Optical properties of novel Er-containing co-polymers with emission at 1530 nm. CHEMICAL PHYSICS LETTERS, 426(1-3), 124-128 [10.1016/j.cplett.2006.05.071].
Pizzoferrato, R; Ziller, T; Paolesse, R; Mandoj, F; Micozzi, A; Ricci, A; Lo Sterzo, C
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/47326
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