Asymmetric Diketopyrrolopyrrole Conjugated Polymers for Field‐Effect Transistors and Polymer Solar Cells Processed from a Nonchlorinated Solvent

Newly designed asymmetric diketopyrrolopyrrole conjugated polymers with two different aromatic substituents possess a hole mobility of 12.5 cm(2) V(-1) s(-1) in field-effect transistors and a power conversion efficiency of 6.5% in polymer solar cells, when solution processed from a nonchlorinated toluene/diphenyl ether mixed solvent.