L8-BO, L8-BO-2F
CAS Number 2668341-40-8
Green Energy Materials, Materials, Non-Fullerene Acceptors, Organic Conductors
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-fullerene acceptor
With highly conjugated core
Improved film quality
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
MSDS Documentation
L8-BO MSDS sheetPricing
| Batch | Quantity | Price |
|---|---|---|
| M2304A1 | 50 mg | £210 |
| M2304A1 | 100 mg | £360 |
| M2304A1 | 250 mg | £720 |
| M2304A1 | 500 mg | £1290 |
*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.
Related Products
Non-Fullerene Acceptors
Non-fullerene acceptors (NFAs) are a promising alternative to fullerene-based electron acceptors.
Semiconducting Polymers
Semiconducting polymers for bulk heterojunction, OPV, OLED, OFET and perovskite interfaces and solar cell research.
Organic Conductors
Organic conductors are an environmentally friendly alternative to traditional inorganic conductors.