A “Kite” Shaped Styryl End-Capped Benzo[2,1-b:3,4-b′]dithiophene with High Electrical Performances in Organic Thin Film Transistors

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• 作者：Yahia Didane ; Georg H. Mehl ; Atsufumi Kumagai ; Noriyuki Yoshimoto ; Christine Videlot-Ackermann ; Hugues Brisset
• 刊名：Journal of the American Chemical Society
• 出版年：2008
• 出版时间：December 31, 2008
• 年：2008
• 卷：130
• 期：52
• 页码：17681-17683
• 全文大小：203K
• 年卷期：v.130,no.52(December 31, 2008)
• ISSN：1520-5126

文摘

The bridging of distyryl-bithiophene leads to a kite shape of the conjugated system. This twist is not like twistacenes or twist deformation in α-oligothiophenes but a curvature such as in bowl shaped systems. Initially perceived to be undesirable, this new semiconductor in OTFT devices provides excellent performances in air, μ = 0.1 cm²/V.s, I_on/I_off > 10⁶, S < 4 V/decade, higher by a factor of 5 to the parent unbridged coplanar analogue.