Dielectric constant engineering of nonfullerene acceptors enables a record fill factor of 83.58% and a high efficiency of 20.80% in organic solar cells
Junwei Dong, Yinfeng Li, Chentong Liao, Xiaopeng Xu, Liyang Yu, Ruipeng Li, Qiang Peng
Abstract
Two nonfullerene acceptors with trifluoromethyl end-capped alkyl side chains increased the dielectric constant and optimized optoelectronic properties, achieving an impressive power conversion efficiency of 20.80% in organic solar cells.
Topics & Concepts
DielectricOrganic solar cellMaterials scienceConstant (computer programming)OptoelectronicsComputer scienceComposite materialPolymerProgramming languageOrganic Electronics and PhotovoltaicsMolecular Junctions and NanostructuresFullerene Chemistry and Applications