Description Non-fullerene acceptors (NFAs) are currently a major focus of research in the development of bulk-heterojunction organic solar cells (OSCs). In contrast to the widely used fullerene acceptors (FAs), the optical properties and electronic energy levels of NFAs can be designed and readily tuned. NFA-based OSCs can also achieve greater thermal stability and photochemical stability, as well as longer device lifetimes, than their FA-based counterparts.Recent developments have led to a rapid increase in power conversion efficiencies for NFA OSCs, with values now exceeding 15% in a single junction cell, and >17% for a tandem cell, demonstrating the viability of using NFAs to replace FAs in next-generation high-performance OSCs.Y6 is a non-fullerene acceptor-donor-acceptor (A-D-A) type small molecular acceptor (SMA) with flexible alkyl chains and a centrally fused ring. It has a ladder-type electron-deficient core, which can be blended with PM6 for organic photovoltaic applications.Y6 is a non-fullerene acceptor (NFA) that uses an electron-deficient molecular core to obtain a low bandgap with improved electron affinity. OPV devices made from Y6 can reach exceptionally high performances in single-junction devices, with a maximum PCE reported of 15.7% (14.9% certified by Enli Tech Laboratory) when paired with PM6. Y6 is versatile and can be employed in both conventional and inverted OPV device architectures and can maintain a high PCE with varying active layer thicknesses (13.6% in thick 300 nm layers).
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Y6
CAS number：2304444-49-1 molecular formula：C82H86F4N8O2S5
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| Chinese alias | 12,13-二(2-乙基己基)-3,9-双十一基-12,13-二氢-[1,2,5]噻二唑并[3,4-E]噻吩并[2'',3'',4',5']噻吩并[2',3',4,5]吡咯并[3,2-G]噻吩并[2',3',4,5]噻吩并[3,2-B]吲哚-2,10-二(5,6-二氟-3-(二氰基亚甲基)茚-1-酮) | ||
| English alias | BTP-4F | Non fullerene acceptor Y6 | PCE 157 | 2,2'-[[12,13-Bis(2-ethylhexyl)-12,13-dihydro-3,9-diundecylbisthieno[2'',3'':4',5']thieno[2',3':4,5]pyrrolo[3,2-e:2',3'-g][2,1,3]benzothiadiazole-2,10-diyl]bis[methylidyne(5,6-difluoro-3-oxo-1H-indene-2,1(3H)- | ||
| CAS number | 2304444-49-1 | molecular formula | C82H86F4N8O2S5 |
| molecular weight | 1451.93 g/mol | Exact mass | ≥98% |
| PSA | - | logp | - |
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2304444-49-1 | Y6.pdf
