Conjugated Copolymers of Vinylene Flanked Naphthalene Diimide
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2016 American Chemical Society. We report the synthesis of a novel naphthalene diimide (NDI) monomer containing two (tributylstannyl)vinyl groups. The utility of this building block is demonstrated by its copolymerization with five different electron-rich comonomers under Stille conditions. The resulting high molecular weight polymers show red-shifted optical absorptions in comparison to the analogous polymers without the vinylene spacer and a significant increase in the intensity of the low-energy intramolecular charge transfer band. The polymers all exhibit ambipolar behavior in bottom-gate, top-contact organic thin-film transistors. The insertion of a solution-processed barium hydroxide layer between the polymer and the gold electrode led to unipolar behavior with improved electron mobilities.
author list (cited authors)
Fei, Z., Han, Y., Martin, J., Scholes, F. H., Al-Hashimi, M., AlQaradawi, S. Y., ... Heeney, M.
complete list of authors
Fei, Zhuping||Han, Yang||Martin, Jaime||Scholes, Fiona H||Al-Hashimi, Mohammed||AlQaradawi, Siham Y||Stingelin, Natalie||Anthopoulos, Thomas D||Heeney, Martin