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L8-BO, non-fullerene acceptor for polymer solar cells
For high carrier generation and balanced charge transport Specifications | Pricing and Options | MSDS | Literature and Reviews L8-BO (CAS number 2668341-40-8) has a similar structure to the highly efficient Y6 non-fullerene acceptor with a fused thienothienopyrrolo-thienothienoindole (TTP-TTI) core. The only difference between L8-BO and Y6 is that L8-BO has two butyloctyl side chains attached to the core while Y6 has two undecyl side chains. The branched 2-butyloctyl side chains show great improvement in film while comparing with Y6 with better structural order to achieve an optimized, multi-length-scale film morphology. High carrier generation, low charge recombination rates and balanced charge transport can be expected. 
High efficient non-flullerene acceptor With highly conjugated core 
Improved film quanlity Owing to the branched butyloctyl side chain 
Worldwide shipping Quick and reliable shipping 
High purity >99% pure It has been reported that single-junction non-fullerene polymer solar cells with L8-BO as the acceptor and PBDB-T-2F (PM6) as the polymer has achieved photo conversion efficiency (PCE) over 18% with the following device structure. Device structure: ITO/PEDOT:PSS/PM6:L8-BO (1:1.2)/PNDIT-F3N/Ag Thickness (nm) VOC (V) JSC (mA cm-2) FF (%) PCE (%) 100 0.874 25.72 81.5 18.32 General Information CAS Number 2668341-40-8 Chemical Formula C84H90F4N8O2S5 Purity >99% (1H NMR) Full Name 2,2'-((2Z,2'Z)-((12,13-bis(2-ethylhexyl)-3,9-(2-butyloctyl)-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2",3’':4’,5']thieno[2',3':4,5]pyrrolo[3,2-g]thieno[2',3':4,5]thieno[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile Molecular Weight 1479.98 g/mol HOMO / LUMO HOMO = -5.68 eV, LUMO = -3.90 eV [1] Solubility Chloroform, chlorobenzene and dichlorobenzene Form Dark blue powder/crystal Synonyms L8BO, L8-BO-2F Classification / Family BTP series NFAs, n-type non-fullerene electron acceptors, Organic semiconducting materials, Low band-gap small molecule, Small molecular acceptor, Organic photovoltaics, Polymer solar cells, NF-PSCs. Chemical Structure
Chemical structure of L8-BO, highly efficient non-fullerene acceptor
MSDS Documentation
*for 5 – 10 grams order quantity, the lead time is 4 – 6 weeks Literature and Reviews Non-fullerene acceptors with branched side chains and improved molecular packing to exceed 18% efficiency in organic solar cells, C. Li et al., Nat. Energy, 6, 605–613 (2021); DOI: 10.1038/s41560-021-00820-x. High-efficiency organic solar cells with low voltage loss induced by solvent additive strategy, J. Song et al., Matter, 4 (7), 2542-2552 (2021); DOI: 10.1016/j.matt.2021.06.010. 18.77 % Efficiency Organic Solar Cells Promoted by Aqueous Solution Processed Cobalt(II) Acetate Hole Transporting Layer, H. Meng et al., Angew. Chem, 133 (41); 22728-22735 (2021); DOI: 10.1002/ange.202110550. Branched side chains improve molecular packing of non-fullerene acceptors, N. Li et al., Sci. China Chem, 64, pages 1435–1436 (2021); DOI: 10.1007/s11426-021-1034-4. |
L8-BO MSDS sheet【本文地址】