Journal Article Research Support, Non-U.S. Gov't high mobility irregularity additive effects alternating D-A copolymers ancillary ligands asymmetric monomers charge trapping effect chemical design colloidal quantum dots conducting polymers conjugated polymers deep-blue emitters deep-blue iridium complexes diketopyrrolopyrrole electron-withdrawing groups environment evaporation rates flexible electronics high boiling points hole-transport layers horizontally oriented emitting dipole moments horizontally oriented emitting dipoles inkjet printing n-type organic field-effect transistors non-chlorinated solvents non-ionic surfactants nonchlorinated solvents organic electronics