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 1999

ASJC Scopus subject areas

  • Polymers and Plastics

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