Synthesis And Utilization Of Perylene-based N-type Small Molecules In Light-emitting Electrochemical Cells

摘要

We report the synthesis of a soluble perylene-based small molecule for use as an n-type emissive material for organic optoelectronic device applications, and demonstrate the material in a light-emitting electrochemical cell configuration.rnLight-emitting electrochemical cell (LEC) device operation involves in situ redistribution of ions under an applied bias with subsequent electrochemical doping of the re-conjugated material at the electrodes. A variety of primarily P-type, or partially oxidized, materials have been utilized for LECs. Common reported materials include poly(p-phenylene vinylene) (PPV)-based emissive polymers, among others. While these materials have been shown to be successful in LECs, there is growing evidence that the use of materials that are relatively easy to oxidize but are difficult or impossible to reversibly reduce could introduce asymmetry in the location of the emissive, or junction, region. The use of more n-type materials that are more easily and reversibly reduced could be advantageous in balancing doping effects in this device architecture.