Material issues for construction of organic and polymeric driving circuits for display and electronics applications

Zhenan Bno, Ananth Dodabalapur, Yen Lin Yi, John A. Rogers, Andrew J. Lovinger, Linda Chen, V. Ready Raja, Howard E. Katz, Wenjie Li

Research output: Contribution to journalConference articlepeer-review

Abstract

The semiconducting properties of polyalkythiophene as field-effect transistors were investigated. Polymethylbutylthiophene had a high field-effect mobility on the order of 10-3 cm2/Vs. However, this is lower than that of polyhexylthiophene, most likely because of the longer π-π stacking distance due to the introduction of branches on the sidechains. Polythiophenes with bulky or H-bonding carboxylic acid sidechains do not form self-assembled crystalline films, yielding very low field-effect mobilities. The nature of the sidechains affects the self-assembly, crystallization, and semiconducting properties of polyalkylthiophene derivatives. Only polythiophenes with non-sterically-hindered linear sidechains produce high crystallinity and high transistor performance.

Original languageEnglish (US)
Pages (from-to)1180-1181
Number of pages2
JournalAmerican Chemical Society, Polymer Preprints, Division of Polymer Chemistry
Volume40
Issue number2
StatePublished - Aug 1 1999

ASJC Scopus subject areas

  • Polymers and Plastics

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