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Proceedings Paper

Novel hybrid organic-inorganic sol-gel materials based on highly efficient heterocyclic push-pull chromophores
Author(s): Alessandro Abbotto; Renato Bozio; Giovanna Brusatin; Antonio Facchetti; Massimo Guglielmi; Plinio Innocenzi; Moreno Meneghetti; Giorgio A. Pagani; Raffaella Signorini
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Paper Abstract

We report the synthesis of sol-gel materials based on highly efficient heterocycle-based push-pull chromophores showing second- and third-order nonlinear optical activity. We show the proper functionalization of the best performing chromophores and their incorporation into a hybrid organic- inorganic sol-gel matrix. Different types of functionalization of the active molecule have been considered, including hydroxyl and alkoxysilyl end-groups. The functionalization strategy responded to different criteria such as stability and synthetic availability of the final molecular precursors, their solubility, and the used synthetic approach to the sol-gel material. The synthesis of the sol-gel materials has been tuned in order to preserve molecular properties and control important factors such as final concentration of the active dye in the matrix. Both acid- and base-catalyzed sol-gel synthesis has been taken into account. 3-Glycidoxypropyltrimethoxysilane and 3- aminopropyltriethoxysilane have been used as the organically modified alkoxides to prepare the hybrid organic-inorganic matrix. Characterization of the spectroscopic properties of the sol-gel materials is presented.

Paper Details

Date Published: 27 October 1999
PDF: 8 pages
Proc. SPIE 3803, Materials and Devices for Photonic Circuits, (27 October 1999); doi: 10.1117/12.366757
Show Author Affiliations
Alessandro Abbotto, Univ. degli Studi di Milano (Italy)
Renato Bozio, Univ. degli Studi di Padova (Italy)
Giovanna Brusatin, Univ. degli Studi di Padova (Italy)
Antonio Facchetti, Univ. degli Studi di Milano (Italy)
Massimo Guglielmi, Univ. degli Studi di Padova (Italy)
Plinio Innocenzi, Univ. degli Studi di Padova (Italy)
Moreno Meneghetti, Univ. degli Studi di Padova (Italy)
Giorgio A. Pagani, Univ. degli Studi di Milano (Italy)
Raffaella Signorini, Univ. degli Studi di Padova (Italy)


Published in SPIE Proceedings Vol. 3803:
Materials and Devices for Photonic Circuits
Mario Nicola Armenise; Walter Pecorella; Liliane G. Hubert-Pfalzgraf; S. Iraj Najafi, Editor(s)

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