Synthesis and properties of small band gap thienoisoindigo based conjugated polymers

G.W.P. Pruissen, van, F. Gholamrezaie, M.M. Wienk, R.A.J. Janssen

Research output: Contribution to journalArticleAcademicpeer-review

74 Citations (Scopus)

Abstract

Using Stille and Suzuki polymerization reactions we incorporate thienoisoindigo (TII) as an acceptor co-monomer into a series of alternating p-conjugated copolymers with combinations of benzene, thiophene and carbazole as donor co-monomers. By changing the nature and length of the donor segments, the optical band gap of these soluble TII copolymers can be varied over a large range from 1.52 eV down to 0.87 eV. The semiconducting properties of the TII copolymers were established in bottom-gate bottom-contact field-effect transistors that provide hole mobilities for these materials in the range of 10-3 to 10-2 cm2 V-1 s-1.
Original languageEnglish
Pages (from-to)20387-20393
Number of pages6
JournalJournal of Materials Chemistry
Volume22
DOIs
Publication statusPublished - 2012

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