Optical microscope and polarized images of inkjet-printed 6,13-bis(triisopropyl-silylethynyl) pentacene (TIPS-PEN) droplets with various solvent compositions: (a) chlorobenzene and mixed-solvents containing chlorobenzene and 25 vol. %, (b) hexane, (c) o-dichlorobenzene, and (d) dodecane. Reprinted with permission from Adv. Funct. Mater. 18(2), 229–234 (2008).156 Copyright 2008 John Wiley and Sons.