An unfused-ring acceptor with high side-chain economy enabling 11.17% as-cast organic solar cells
Fuqiang Du, Hongtao Wang, Zhuohan Zhang, Linqiang Yang, Jinru Cao, Jiangsheng Yu, Weihua Tang
Abstract
BM into the casting solutions, a greatly improved PCE of 11.17% is readily achieved, which is one of the highest PCEs for as-cast single-junction UFA-based devices. The PM6:DCB-4F based blends show homogeneous nano-fiberous morphology and higher hydrophobicity. The design of conformation-tuned NFAs using sterically hindered DCB-like cores is promising to achieve highly efficient as-cast OSCs.
Topics & Concepts
HOMO/LUMOSide chainMaterials scienceCrystallinitySolubilityCarbazoleAcceptorOrganic solar cellChemical engineeringEnergy conversion efficiencyPolymerPolymer chemistryPhotochemistryChemistryOptoelectronicsOrganic chemistryComposite materialMoleculeEngineeringCondensed matter physicsPhysicsOrganic Electronics and PhotovoltaicsConducting polymers and applicationsPerovskite Materials and Applications