Inkjet printed perylene diimide based OTFTs: Effect of the solvent mixture and the printing parameters on film morphology

► Inkjet printed film uniformity is controlled by solvent mixtures. ► The crystalline microstructure influences the performance of OTFT. ► PDI-8CN2 semiconductor is inkjet printed in a bottom-gate bottom-contact OTFT. ► The optimized solvent mixture improves the OTFT performances.