Tetrathienoacene Copolymers As High Mobility, Soluble Organic Semiconductors

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• 作者：Hon Hang Fong ; Vladimir A. Pozdin ; Aram Amassian ; George G. Malliaras ; Detlef-M. Smilgies ; Mingqian He ; Susan Gasper ; Feixia Zhang ; Michael Sorensen
• 刊名：Journal of the American Chemical Society
• 出版年：2008
• 出版时间：October 8, 2008
• 年：2008
• 卷：130
• 期：40
• 页码：13202-13203
• 全文大小：156K
• 年卷期：v.130,no.40(October 8, 2008)
• ISSN：1520-5126

文摘

Increasing the rigidity of the thiophene monomer through the use of an alkyl-substituted core that consists of four fused thiophene rings is shown to be a promising route toward high-performance organic semiconductors. We report on a dialkylated tetrathienoacene copolymer that can be deposited from solution to yield ordered films with a short π−π distance of 3.76 Å and with a field-effect hole mobility that exceeds 0.3 cm²/V·s. This polymer enables simple transistor fabrication at relatively low temperatures, which is particularly important for the realization of large-area, mechanically flexible electronics.