Dendritic NLO chromophore with fluorinated dendrons for improving poling efficiency in electro-optic devices

Encapsulated by highly-fluorinated dendrons, a nonlinear optical chromophore core, which is based on the phenyl-tetracyanobutadienyl (Ph-TCBD) thiophene-stilbene-based NLO chromophore, exhibits a large similar to30-40 nm blue shift of the charge-transfer absorption maximum, 20 degreesC higher decomposition temperature, and most impressively, three times higher E-O coefficient. The combination of these appreciable improvements makes the molecular design of dendritic modification as a very promising molecular-engineering for next generation of E-O materials.