首页|End-group modulation of phenazine based non-fullerene acceptors for efficient organic solar cells with high open-circuit voltage
End-group modulation of phenazine based non-fullerene acceptors for efficient organic solar cells with high open-circuit voltage
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
Phenazine-based non-fullerene acceptors(NFAs)have demonstrated great potential in improving the power conversion efficiency(PCE)of organic solar cells(OSCs).Halogenation is known to be an effective strategy for increasing optical absorption,refining energy levels,and improving molecular packing in organic semiconductors.Herein,a series of NFAs(PzIC-4H,PzIC-4F,PzIC-4Cl,PzIC-2Br)with phenazine as the central core and with/without halogen-substituted(dicyanomethylidene)-indan-1-one(IC)as the electron-accepting end group were synthesized,and the effect of end group matched phenazine cen-tral unit on the photovoltaic performance was systematically studied.Synergetic photophysical and mor-phological analyses revealed that the PM6∶PzIC-4F blend involves efficient exciton dissociation,higher charge collection and transfer rates,better crystallinity,and optimal phase separation.Therefore,OSCs based on PM6∶PzIC-4F as the active layer exhibited a PCE of 16.48％with an open circuit voltage(Voc)and energy loss of 0.880 V and 0.53 eV,respectively.Accordingly,this work demonstrated a promising approach by designing phenazine-based NFAs for achieving high-performance OSCs.
Organic solar cellsNon-fullerene acceptorPhenazineCentral coreEnd group
School of Materials Science and Engineering,Shanghai University,Shanghai 200444,China
Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,Zhejiang,China
Zhejiang Business Technology institute,Ningbo 315012,Zhejiang,China
Center for Advanced Low-dimension Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China
展开 >
National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Science Fund for Distinguished Young ScholarsNingbo key scientific and technological projectNingbo Natural Science Foundation
NETL
NSTL
万方数据
