Fig. 3From: Effect of In Situ Annealing Treatment on the Mobility and Morphology of TIPS-Pentacene-Based Organic Field-Effect TransistorsOptical microscope images of spray-coated TIPS-pentacene layer. a Substrate temperature of room temperature followed by post-annealing at 120 °C for 20 min, b–d In situ annealing temperature of 60, 90, and 120 °C, respectivelyBack to article page