Voltage-Driven Photoluminescence Modulation of Liquid-Crystalline Hybridized ZnO Nanoparticles

Chrystelle Neaime (1) , Marianne Prévôt (1, 2) , Maria Amela-Cortes (1) , Viorel Cîrcu (1) , Fabien Grasset (1) , Hervé Folliot (2) , Yann Molard (1)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 FOTON - Fonctions Optiques pour les Technologies de l'informatiON

Liquid-crystalline hybrid nanomaterials have been obtained by grafting mesogenic units around luminescent ZnO nanocrystals of 5 nm in diameter. Modifying the mesogenic density around the inorganic core allows the modulation of the liquid-crystalline behavior and its miscibility in commercial liquid crystal (LC). The strong blue photoluminescence observed for the hybrids can be modulated by applying a voltage on a LC cell containing commercial LC and 10 wt % of hybrid.

Mots clés: liquid crystals; luminescence; nanoparticles; zinc

Domaines: Chimie inorganique

Chrystelle Neaime, Marianne Prévôt, Maria Amela-Cortes, Viorel Cîrcu, Fabien Grasset, et al.. Voltage-Driven Photoluminescence Modulation of Liquid-Crystalline Hybridized ZnO Nanoparticles. Chemistry - A European Journal, 2014, 20 (42), pp.13770-13776. ⟨10.1002/chem.201403154⟩. ⟨hal-01083355⟩