Naphtho[1,2b;5,6b′]difuran-based donor–acceptor polymers for high performance organic field-effect transistors

Abstract

Two naphthodifuran-based donor–acceptor copolymers are presented. Via reasonable main-chain modification and side-chain engineering, remarkably dense π–π stacking spacings (<3.5 Å) as well as high “edge-on” orientations are observed. When fabricated as organic field-effect transistors, high hole mobilities exceeding 5 cm² V⁻¹ s⁻¹ are achieved at a moderate annealing temperature of 120 °C.