Novel hybrid organic-inorganic sol-gel materials based on highly efficient heterocyclic push-pull chromophores

Alessandro Abbotto; Renato Bozio; Giovanna Brusatin; Antonio Facchetti; Massimo Guglielmi; Plinio Innocenzi; Moreno Meneghetti; Giorgio A. Pagani; Raffaella Signorini

doi:10.1117/12.366757

27 October 1999 Novel hybrid organic-inorganic sol-gel materials based on highly efficient heterocyclic push-pull chromophores

Alessandro Abbotto, Renato Bozio, Giovanna Brusatin, Antonio Facchetti, Massimo Guglielmi, Plinio Innocenzi, Moreno Meneghetti, Giorgio A. Pagani, Raffaella Signorini

Author Affiliations +

Proceedings Volume 3803, Materials and Devices for Photonic Circuits; (1999) https://doi.org/10.1117/12.366757
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

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.

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Alessandro Abbotto, Renato Bozio, Giovanna Brusatin, Antonio Facchetti, Massimo Guglielmi, Plinio Innocenzi, Moreno Meneghetti, Giorgio A. Pagani, and Raffaella Signorini "Novel hybrid organic-inorganic sol-gel materials based on highly efficient heterocyclic push-pull chromophores", Proc. SPIE 3803, Materials and Devices for Photonic Circuits, (27 October 1999); https://doi.org/10.1117/12.366757

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