Thin‐Film Semiconductors: Ambipolar Organic Field‐Effect Transistors Based on a Dual‐Function, Ultrathin and Highly Crystalline 2, 9‐didecyldinaphtho[2, 3‐b:2′, 3′‐f]thieno[3, 2‐b]thiophene (C10‐DNTT) Layer (Adv. Electron. Mater. 12/2017). (11th December 2017)