초록 |
Recently, p-conjugated small molecules and polymers have attracted tremendous attention due to their great electronic characteristics potentially applicable to NLOs, OLEDs, OTFTs, OPVs. and so on. It is important not only to control the energy band-gap in p-conjugated systems for optimizing the performance of electronic and photonic devices, and also to afford intrinsic conductivity of p-conjugated materials without compromising thier solubility and processability. Several molecular engineering strategies have been developed in recent years to design donor-acceptor alternating conjugated polymers, which possess high light-harvesting, tunable optical properties, ambipolar charge transporting, and facile integration with alkyl groups to demonstrate high performance devices. Here I present novel molecular engineering that induces effective photo-induced charge transfer in moderate band-gap polymers, expands the role of side chains, and facilitates interface control in the devices. |