Benzodithiophene Copolymer—A Low‐Temperature, Solution‐Processed High‐Performance Semiconductor for Thin‐Film Transistors

Abstract Poly(4,8‐didodecyl‐2,6‐bis‐(3‐methylthiophen‐2‐yl)‐benzo[1,2‐ b :4,5‐ b ′]dithiophene) self‐assembled on appropriate substrates from solution and formed highly structured thin films at low temperatures. As an as‐prepared thin‐film semiconductor without thermal annealing, it exhibited excellent field‐effect transistor properties with mobility of ∼ 0.15 cm 2 V –1 s –1 in thin‐film transistors.