Pyrroloindacenodithiophene containing polymers for organic field effect transistors and organic photovoltaics

作者:Donaghey, Jenny E*; Ashraf, Raja Shahid; Kim, Youngju; Huang, Zheng Gang; Nielsen, Christian B; Zhang, Weimin; Schroeder, Bob; Grenier, Christophe R G; Brown, Christopher T; D'Angelo, Pasquale; Smith, Jeremy; Watkins, Scott; Song, Kigook; Anthopoulos, Thomas D; Durrant, James R; Williams, Charlotte K; McCulloch, Iain
来源:Journal of Materials Chemistry, 2011, 21(46): 18744-18752.
DOI:10.1039/c1jm13428k

摘要

The synthesis of the novel electron-rich pyrroloindacenodithiophene (NIDT) unit is reported. Stille copolymerization of the distannylated NIDT unit, with the electron-deficient dibrominated benzothiadiazole (BT), difluorobenzothiadiazole (ffBT), thienopyrrolodione (TPD) and 1,1'-bithienopyrrolodione (biTPD) units afforded a series of low band gap semiconducting polymers. Initial testing shows promise for the use of these materials as p-type semiconductors in organic field effect transistors (OFETs) with mobilities as high as 0.07 cm(2)V(-1)s(-1) being measured. These materials have also been tested as the donor polymer in polymer/fullerene bulk heterojunction organic photovoltaics (OPVs) giving maximum efficiencies of 2.5%.