High Performance Electro-Optic Polymeric Material Systems for Device Applications

摘要

We have made significant breakthrough in the E-O polymers via the successful development of chromophores and polymer synthesis. A series of highly efficient chemically and thermally stable (>310 deg C) nonlinear optical chromophores were prepared through the replacement of the most reactive CN group in the tricyanovinylthiophene derivatives perfluoroaryl units. In addition we have demonstrated a new and efficient approach for synthesizing novel second- order NLO polymers by utilizing radical-mediated stepwise cycloaddition polymerization reaction. The resulting NLO PFCB polymers exhibited excellent processability, small optical anisotropy, low optical loss, and very good thermal, nonlinear optical and mechanical properties. The extension of this method to other functional PFCB polymers for light-emitting diodes is currently in progress.