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Poly(2,7-carbazole) Derivatives as Semiconductors for Organic Thin-Film Transistors

✍ Scribed by Salem Wakim; Nicolas Blouin; Emilie Gingras; Ye Tao; Mario Leclerc

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
190 KB
Volume
28
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

New poly(2,7‐carbazole) derivatives have been synthesized using Yamamoto or Stille coupling reaction. These polymers are highly soluble in common organic solvents and have relatively high molecular weights. Solution‐processed organic field‐effect transistors using these new polymeric semiconductors were found to exhibit a hole mobility up to 2.0 × 10^βˆ’3^ cm^2^Β·V^βˆ’1^s^βˆ’1^ with a current on/off ratio of 5 × 10^4^ under ambient conditions.

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## Abstract Printed organic thin‐film transistors (OTFTs) have received great interests as potentially low‐cost alternative to silicon technology for application in large‐area, flexible, and ultra‐low‐cost electronics. One of the critical materials for TFTs is semiconductor, which has a dominant im