COi8DFIC or O6T-4F is a highly efficient, n-type, low-bandgap nonfullerene acceptor with strong NIR absorption. In a recent study, COi8DFIC or O6T-4F was selected in a Tandem cell by computer assited design and gave a record PCE of 17.3?% for fabricated organic solar cells.COi8DFIC or O6T-4F is frequently selected to blend with a narrow-bandgap donor material and another narrow bandgap acceptor material to fabricate ternary organic solar cells. The PTB7-Th:COi8DFIC:PC71BM ternary cells offered a PCE of 14.08%. By further adopting a post-annealing process, an outstanding PCE of 14.62% can be achieved. Furthermore, the device utilizing COi8DFIC exhibited a good thermal stability with PCEs over 13.5% in a wide temperature range (70-160 C).
Synonyms: 2,2'-[[4,4,11,11-tetrakis(4-hexylphenyl)-4,11-dihydrothieno[2',3':4,5]thieno[2,3-d]thieno[2'''',3'''':4''',5''']thieno[2''',3''':4'',5'']pyrano[2'',3'':4',5']thieno[2',3':4,5]thieno[3,2-b]pyran-2,9-diyl]bis[methylidyne(5,6-difluoro; NFA146; O6T-4F; PCE146
Molecular Formula: C94H76F4N4O4S6
Molecular Weight: 1594.02
Linear Structural Formula: C94H76F4N4O4S6
Purity: >=98%; >=98%
Application: COi8DFIC, an efficient non-fullerene acceptor material, has a strong near-infrared range (NIR) light absorption. It can be used as an n-type small molecule acceptor material for the fabrication of polymeric solar cells.