Over 17.5% efficiency ternary organic solar cells with enhanced photon utilization <i>via</i> a medium band gap non-fullerene acceptor
Congcong Cao, Hanjian Lai, Hui Chen, Yulin Zhu, Mingrui Pu, Nan Zheng, Feng He
Abstract
Two medium band gap NFAs are prepared and their PL emission mostly overlaps with the absorption spectrum of Y6. The photoexcitation from acceptors increases significantly due to the energy transfer. The crystallinity and morphlogy of the blend film are also optimized significantly.
Topics & Concepts
PhotoexcitationFullereneTernary operationAcceptorOrganic solar cellMaterials scienceCrystallinityBand gapAbsorption (acoustics)OptoelectronicsPhotochemistryExcitationChemistryPhysicsOrganic chemistryCondensed matter physicsPolymerComposite materialComputer scienceProgramming languageQuantum mechanicsOrganic Electronics and PhotovoltaicsConducting polymers and applicationsPerovskite Materials and Applications