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 cm 2 /V.s, I on /I off > 106, S < 4 V/decade, higher by a factor of 5 to the parent unbridged coplanar analogue. Copyright © 2009 American Chemical Society.
Didane, Y., Mehl, G. H., Kumagai, A., Yoshimoto, N., Videlot-Ackermann, C., & Brisset, H. (2008). A "Kite" Shaped Styryl End-Capped Benzo[2,1-b:3,4-b ']dithiophene with High Electrical Performances in Organic Thin Film Transistors. Journal of the American Chemical Society, 130(52), 17681-17683. https://doi.org/10.1021/ja807504k