Highly fluorescent and stable Perfluorophenyl-Bifuran

The addition of perfluorinated phenyl rings to conjugated systems often results in higher stability, lower sublimation temperatures as well as lowering of the HOMO and LUMO levels. Perfluorinated rings can induce π-π stacking, and therefore greatly affects the solid state properties.
Furan oligomers, which displayed good field effect mobility and strong fluorescence, suffer from low stability, which restricts their application as organic field effect transistors (OFETs) or organic light emitting diodes (OLEDs). In this work we introduce perfluorobenzene-oligofurans co-oligomers (PFB-2F), and report their properties. We find that PFB-2F are relatively stable, highly fluorescent and display interesting photophysical and solid state properties.