Importance of C2 symmetry for the device performance of a newly synthesized family of fused-ring thiophenes Article

He, M, Li, J, Tandia, A et al. (2010). Importance of C2 symmetry for the device performance of a newly synthesized family of fused-ring thiophenes . CHEMISTRY OF MATERIALS, 22(9), 2770-2779. 10.1021/cm100524p

cited authors

  • He, M; Li, J; Tandia, A; Sorensen, M; Zhang, F; Fong, HH; Pozdin, VA; Smilgies, DM; Malliaras, GG

authors

abstract

  • We investigated the relationship between molecular structure and field-effect hole mobility in a family of fused-ring polythiophene copolymers that we designed recently. The results suggest that a repeat unit that possesses a C2-axis perpendicular to the conjugation plane is important to achieve a high mobility. Our finding is supported by a review of literature data. Many polymer semiconductors showing a hole or electron mobility of >0.1 cm2/(V s) feature a repeat unit with C2 symmetry; however, exceptions have been found from some push-pull polymer structures. © 2010 American Chemical Society.

publication date

  • May 11, 2010

published in

Digital Object Identifier (DOI)

start page

  • 2770

end page

  • 2779

volume

  • 22

issue

  • 9