Thiophene Polymer Semiconductors for Organic Thin-Film Transistors

✍ Scribed by Beng S. Ong; Yiliang Wu; Yuning Li; Ping Liu; Hualong Pan

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 967 KB
• Volume: 14
• Category: Article
• ISSN: 0947-6539
• DOI: 10.1002/chem.200701717

✦ Synopsis

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 impact on the transistor properties. We review here the structural studies and design of thiophene‐based polymer semiconductors with respect to solution processability, ambient stability, molecular self‐organization, and field‐effect transistor properties for OTFT applications. We show that through judicial monomer design, delicately controlled π‐conjugation, and strategically positioned pendant side‐chain distribution, novel solution‐processable thiophene polymer semiconductors with excellent self‐organization ability to form extended lamellar π‐stacking orders can be developed. OTFTs using semiconductors of this nature processed in ambient conditions have provided excellent field‐effect transistor properties.