title: Synthesis of a novel fused thiophene-thieno[3,2-b]thiophene-thiophene donor monomer and co-polymer for use in OPV and OFETs.
abstract: The synthesis of a novel fused hexacyclic electron rich monomer incorporating thieno[3,2-b]thiophene is reported and characterized by single crystal X-ray diffraction. Suzuki co-polymerization with benzothiadiazole (BT) afforded a novel low band-gap polymer P4TBT with high molecular weights and good solution processability. Bulk heterojunction solar cell devices using the P4TBT and [70]PCBM gave power conversion efficiencies of 2.5%. Top-gate, bottom-contact field effect transistors (FETs) using P4TBT displayed high hole mobilities of 0.07 cm(2) · Vs(-1) demonstrating the suitability of the novel monomer and polymer for use in high performing organic electronic devices.
authors: Department of Chemistry, Centre for Plastic Electronics, Imperial College London, SW7 2AZ, UK. h.bronstein@imperial.ac.uk
authors: Hugo
authors: H
authors: Bronstein
authors: Raja Shahid
authors: RS
authors: Ashraf
authors: Youngju
authors: Y
authors: Kim
authors: Andrew J P
authors: AJ
authors: White
authors: Thomas
authors: T
authors: Anthopoulos
authors: Kigook
authors: K
authors: Song
authors: David
authors: D
authors: James
authors: Weimin
authors: W
authors: Zhang
authors: Iain
authors: I
authors: McCulloch
mesh_terms: D011211:Electric Power Supplies; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D012993:Solar Energy; D013830:Thiadiazoles / Q000737:chemistry*; D013876:Thiophenes / Q000737:chemistry*; D014173:Transistors, Electronic
chemical_list: D011108:Polymers; D013830:Thiadiazoles; D013876:Thiophenes; C015700:benzo-1,2,3-thiadiazole