An asymmetrical fused-ring electron acceptor designed by a cross-conceptual strategy achieving 15.6% efficiency
Wei Gao, Xiaoling Ma, Qiaoshi An, Jinhua Gao, Cheng Zhong, Fujun Zhang, Chuluo Yang
Abstract
An asymmetrical acceptor <bold>AY6</bold> was designed by combining the advantages of <bold>IT6-4F</bold> and <bold>Y6</bold>. Amorphous <bold>AY6</bold> interacting with <bold>PM6</bold> forms a perfect face-on orientation with strong π–π stacking, achieving not only a high PCE but also a high FF.
Topics & Concepts
StackingAcceptorRing (chemistry)Orientation (vector space)Materials scienceFace (sociological concept)CrystallographyPhysicsChemistryNuclear magnetic resonanceCondensed matter physicsGeometryMathematicsSociologyOrganic chemistrySocial scienceOrganic Electronics and PhotovoltaicsOrganic Light-Emitting Diodes ResearchConducting polymers and applications