L8-ThCl
Non-Fullerene Acceptor for Highly Efficient Organic Polymer Solar Cells
For high carrier generation, balanced charge transport, stronger induced intermolecular interaction, and reduced energy loss
Specifications | MSDS | Literature and Reviews
L8-ThCl is a non-fullerene acceptor (NFA) with a similar structure to L8-BO, both containing a fused thienothienopyrrolo-thienothienoindole (TTP-TTI) core. The difference is that L8-ThCl is end-capped with chlorine-substituted thiophene (2-(1-chloro-6-oxo-5,6-dihydro-4H-cyclopenta[c]thiophen-4-ylidene)malononitrile (CPTCN-Cl). The chlorinated thienyl end groups show good compatibility with L8-BO with stronger induced intermolecular interaction, leading to narrowed full-width-at-half-maxima (FWHM) at its (0-0) absorption peak in film.
L8-ThCl also has slightly elevated HOMO/LUMO energy levels while comparing them with those of L8-BO, showing reduced energy loss and better alignment of energy levels with most of semiconducting polymer donors. Power conversion efficiency of 19.4% and 20.1% were recorded for polymer organic solar cells based on PM6:20 wt% L8-ThCl/L8-BO:20 wt% L8-ThCl and D18:20 wt% L8-ThCl/L8-BO:20 wt% L8-ThCl ternary active layers.
High Efficiency
With highly conjugated core
Improved Film Quality
Owing to the compatibility
Worldwide Shipping
Quick and reliable shipping
High Purity
> 98% pure
General Information
| Chemical Formula | C80H88Cl2N8O2S7 |
|---|---|
| Purity | > 98% (1H NMR) |
| Full Name | 2,2'-((2Z,2'Z)-((12,13-bis(2-ethylhexyl)-3,9-di(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(1-chloro-6-oxo-5,6-dihydro-4H-cyclopenta[c]thiophen-4-ylidene)dimalononitrile |
| Molecular Weight | 1488.96 g/mol |
| HOMO / LUMO | HOMO = -5.65 eV, LUMO = -3.80 eV |
| Absorption/PL | 817 nm / 889 nm (in film) |
| Solubility | Chloroform, chlorobenzene and dichlorobenzene |
| Form | Dark powder/crystal |
| Synonyms | L8ThCl |
| 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-ThCl MSDS sheetLiterature and Reviews
- C. Chen et al. (2024); Molecular interaction induced dual fibrils towards organic solar cells with certified efficiency over 20%, Nat. Commun., 15, 6865; DOI: 10.1038/s41467-024-51359-w.
- Z. Luo et al. (2020); Fine-Tuning Energy Levels via Asymmetric End Groups Enables Polymer Solar Cells with Efficiencies over 17%, Joule, 4 (6), 1236-1247; DOI: 10.1016/j.joule.2020.03.023.