Rationally regulating the π-bridge of small molecule acceptors for efficient organic solar cells
Pengchao Wang, Yonghai Li, Chenyu Han, Junjie Wang, Fuzhen Bi, Nan Zheng, Jiawang Yang, Jiuxing Wang, Xichang Bao
Abstract
The unilateral π-bridge endows acceptors with enhanced crystallinity and orientation, affording a notable efficiency of 15.45% with an impressive fill factor of 79.31%. Meanwhile, the resultant ternary cell shows a high PCE of up to 18.15%.
Topics & Concepts
CrystallinityTernary operationBridge (graph theory)Organic solar cellMaterials scienceMoleculeSmall moleculeChemical engineeringNanotechnologyChemistryPolymerOrganic chemistryComposite materialComputer scienceEngineeringBiochemistryMedicineInternal medicineProgramming languageOrganic Electronics and PhotovoltaicsConducting polymers and applicationsPerovskite Materials and Applications