Organic photovoltaic cells and non-fullerene acceptors thereof

Patent · Tue Mar 14 00:00:00 EDT 2023

OSTI ID:1987227

Forrest, Stephen R.; Li, Yongxi; Liu, Xiao Dong

Organic photovoltaic cells (OPVs) and their compositions are described herein. In one or more embodiments, the acceptor with an active layer of an OPV includes is a non-fullerene acceptor. Such non-fullerene acceptors may provide improved OPV performance characteristics such as improved power conversion efficiency, open circuit voltage, fill factor, short circuit current, and/or external quantum efficiency. One example of a non-fullerene acceptor is (4,4,10,10-tetrakis(4-hexylphenyl)-5,11-(2-ethylhexyloxy)-4,10-dihydro-dithienyl[1,2-b:4,5b′] benzodi-thiophene-2,8-diyl) bis(2-(3-oxo-2,3-dihydroinden-5,6-dichloro-1-ylidene) malononitrile.

• Research Organization: The University of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE; US Office of Naval Research (ONR)
• DOE Contract Number: EE0006708
• Assignee: Regents of the University of Michigan (Ann Arbor, MI)
• Patent Number(s): 11,605,787
• Application Number: 16/761,914
• OSTI ID: 1987227
• Country of Publication: United States
• Language: English