A "Kite" Shaped Styryl End-Capped Benzo[2,1-b:3,4-b′]dithiophene with High Electrical Performances in Organic Thin Film Transistors
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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DOI：
10.1021/ja807504k
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发表时间：
2008-12-31
影响因子：
15
通讯作者：
Brisset, Hugues
中科院分区：
文献类型：
--
作者：
Didane, Yahia;Mehl, Georg H.;Brisset, Hugues
二苯乙烯基-联噻吩的桥接导致共轭体系的风筝形状。这种扭曲不像扭曲并苯或α-低聚噻吩中的扭曲变形，而是如碗状系统中的曲率。最初被认为是不期望的，OTFT器件中的这种新半导体在空气中提供了优异的性能，μ = 0.1 cm（2）/V.s，I-on/I-off > 10（6），S < 4 V/decade，比母体非桥接共面模拟物高5倍。
The bridging of distyryl-bithiophene leads to a kite shape of the conjugated system. This twist is not like twistacenes or twist deformation in alpha-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, mu = 0.1 cm(2)/V.s, I-on/I-off > 10(6), S < 4 V/decade, higher by a factor of 5 to the parent unbridged coplanar analogue.