Low bandgap conjugated polymers based on mono-fluorinated isoindigo for efficient bulk heterojunction polymer solar cells processed with non-chlorinated solvents

Abstract

Isoindigo-based low bandgap conjugated polymers soluble in non-chlorinated solvents have been synthesized<italic>via</italic>lowering regioregularity for 7.5% BHJ PSCs with<italic>o</italic>-xylene as processing solvent.