Enhancing the photovoltaic performance of heteroheptacene-based nonfullerene acceptors through the synergistic effect of side-chain engineering and fluorination
Dongdong Cai, Jianqi Zhang, Jin-Yun Wang, Yunlong Ma, Shuo Wan, Pengsong Wang, Zhixiang Wei, Qingdong Zheng
Abstract
The synergistic effect of end-group fluorination and side-chain engineering leads to a nonfullerene acceptor with an outstanding power conversion efficiency of 14.75%.
Topics & Concepts
Side chainAcceptorPhotovoltaic systemEnergy conversion efficiencyChain (unit)Molecular engineeringChemistryMaterials scienceChemical engineeringNanotechnologyOrganic chemistryOptoelectronicsEngineeringElectrical engineeringPhysicsPolymerAstronomyCondensed matter physicsOrganic Electronics and PhotovoltaicsFullerene Chemistry and ApplicationsSynthesis and Properties of Aromatic Compounds