| 초록 |
Recently diketopyrrolopyrrole (DPP)-based conjugated polymers have extremely fascinated as semiconducting materials for organic light emitting diodes (OLEDs), organic thin film transistors (OTFTs), and organic photovoltaics (OPVs). The DPP-based polymers have been shown to exhibit efficient luminescence, good field-effect charge transport, and small bandgaps due to DPP core’s electron deficient nature. Here we present the synthesis and detailed characterization of new low band-gap copolymers derived from DPP units and different copolymerizing groups (thieno[3,2-b]thiophene: DPP-TT, naphthalene: DPP-NP, pyrene: DPP-PR). Among them, the DPP-TT polymer containing thieno[3,2-b]thiophene has been proven as a p-type semiconductor with high mobility up to 1.1 cm2/Vs. Their thermal, optical, and electrochemical properties are also described. |
