<p>New acceptor moieties with extended conjugation have been developed  for further understanding of structure-property relationships in donor-acceptor type semiconducting polymers. These diketopyrrolopyrrole or isoindigo based conjugated polymers have been demonstrated as functional materials in organic field effect transistors, photoacoustic imaging and organic electrochemical transistors. With demonstrations of semiconducting molecular design, we hope to spark new research directions especially on deeper investigation of charge transport dependence on chemical structures, and new design strategies of acceptor moieties with extended conjugation could be applied for targeted applications.</p>