Self-assembled composite nano-materials exploiting a thermo reversible n-acene fibrillar scaffold and organic-capped ZnO nanoparticles

Rajat K. Das (1, 2) , Shreedhar Bhat (1, 2, 3) , Supratim Banerjee (1, 2) , Cyril Aymonier (3) , Anne Loppinet-Serani (3) , Pierre Terech (4) , Uday Maitra (1) , Guillaume Raffy (2) , Jean-Pierre Desvergne (2) , André del Guerzo (2)

1 Department of Organic Chemistry
2 ISM - Institut des Sciences Moléculaires
3 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
4 SPRAM - UMR 5819 - Structures et propriétés d'architectures moléculaire

An organic–inorganic composite material is obtained by self-assembly of 2,3-didecyloxy-anthracene (DDOA), an organogelator of butanol, and organic-capped ZnO nanoparticles (NPs). The ligand 3, 2,3-di(6-oxy-n-hexanoic acid)-anthracene, designed to cap ZnO and interact with the DDOA nanofibers by structural similarity, improves the dispersion of the NPs into the organogel. The composite material displays mechanical properties similar to those of the pristine DDOA organogel, but gelates at a lower critical concentration and emits significantly less, even in the presence of very small amounts of ZnO NPs. The ligand 3 could also act as a relay to promote the photo-induced quenching process.

Domaines: Matériaux

Rajat K. Das, Shreedhar Bhat, Supratim Banerjee, Cyril Aymonier, Anne Loppinet-Serani, et al.. Self-assembled composite nano-materials exploiting a thermo reversible n-acene fibrillar scaffold and organic-capped ZnO nanoparticles. Journal of Materials Chemistry, 2011, 21 (8), pp.2740-2750. ⟨10.1039/C0JM02603D⟩. ⟨hal-00565850⟩