Regioregular pyridal[2,1,3]thiadiazole π-conjugated copolymers

Lei Ying, Ben B.Y. Hsu, Hongmei Zhan, Gregory C. Welch, Peter Zalar, Louis A. Perez, Edward J. Kramer, Thuc Quyen Nguyen, Alan J. Heeger, Wai Yeung Wong, Guillermo C. Bazan

Research output: Contribution to journalArticlepeer-review

172 Citations (Scopus)

Abstract

π-Conjugated, narrow band gap copolymers containing pyridal[2,1,3] thiadiazole (PT) were synthesized via starting materials that prevent random incorporation of the PT heterocycles relative to the backbone vector. Two regioregular structures could be obtained: in one the PTs are oriented in the same direction, and in the other the orientation of the PTs alternates every other repeat unit. Compared to their regiorandom counterparts, the regioregular polymers exhibit a 2 orders of magnitude increase of the hole mobilites, from 0.005 to 0.6 cm2 V-1 s-1, as determined by field-effect transistor measurements.

Original languageEnglish
Pages (from-to)18538-18541
Number of pages4
JournalJournal of the American Chemical Society
Volume133
Issue number46
DOIs
Publication statusPublished - 2011 Nov 23

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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