Thin Film Transistors: Dual Channel Operation Upon n‐Channel Percolation in a Pentacene‐C₆₀ Ambipolar Organic Thin Film Transistor (Adv. Mater. 15/2013)

Bert Nickel and co-workers report on page 2147 an in-situ characterization of the evolution of a pentacene-fullerene ambipolar transistor. The experiment highlights the importance of film percolation for interface charging in organic heterojunctions. The cover picture visualizes the pentacene/C60 transistor geometry during fullerene deposition, including topological and structural information obtained via AFM and X-ray investigations. Image: Christoph Hohmann, Nanosystems Initiative Munich.