Direct synthesis of mesoporous hybrid organic-inorganic silica powders and thin films for potential non linear optic applications

Ahmad Mehdi (1) , Eric Besson (1) , Catherine Reyé (1) , Robert J. P. Corriu (1) , Alain Gibaud (2)

1 ICGM ICMMM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier
2 LPEC - Laboratoire de physique de l'état condensé

Powders of mesoporous organosilica functionalized with a Non Linear Optical chromophore in the channel pore (azobenzene diethylphosphonate) were achieved in one step and were synthesized by templated-directed co-condensation of tetraethylorthosilicate (TEOS) and the functional organotriethoxysilanes. The materials were characterized by 13C, 31P and 29Si NMR experiments, nitrogen gas adsorption, powder X-ray diffractrion (XRD). Optically transparent and highly ordered multifunctional mesostructured films obtained by evaporation induced self-assembly (EISA) approach were deposited on glass or silicon substrates by dip-coating. Thin films were monofunctionalized in the channel pores or bifunctionalized (channel pore/framework) and allow us to evidence the salt effect induced by an organometallic complex on the structure of the mesostructured film. They were characterized by Grazing Incidence Small Angle X-ray Scattering (GISAXS) and X-ray reflectivity

Mots clés: Hybrid materials; NLO; bifunctionality; Thin films; mesoporous and GISAXS

Domaines: Matériaux; Polymères

Ahmad Mehdi, Eric Besson, Catherine Reyé, Robert J. P. Corriu, Alain Gibaud. Direct synthesis of mesoporous hybrid organic-inorganic silica powders and thin films for potential non linear optic applications. Silicon Based Polymers, Springer Science, pp.223-231, 2008. ⟨hal-00347419⟩