Abstract
Organic light-emitting diodes (OLEDs) were prepared using the P1 polymer and then characterized. P1 was synthesized via the direct C-H/C-H cross coupling reaction between octafluorobiphenyl and bithiophene monomers. By analyzing the electroluminescence properties of various OLED structures, P1 was found to exhibit more favorable ambipolar transport, compared with F6T2, which consists of fluorene and bithiophene units. The octafluorobiphenyl monomer was already known to exhibit fewer undesired homocoupling defects in P1. Thus, our experimental results in this study proved that octafluorobiphenyl was useful not only for the cross coupling reaction but also for adding new functions to polymers.
