DTY6 is another highly efficient non-fullerene acceptor from Y6 family with a highly conjugated and flat [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 core centre.
Bearing two large decylteradecyl alky side chains, DTY6 is developed for large-area organic solar cells. Working together with polymers PBDB-TF-T1 (T1), PTO2, PClTO2. Non-fullerene acceptors DTY6, together with BTP-2F-12, TPT10-C8C12 and BTP-eC9 are considered to be green energy materials for their green solvents processability, i.e. in o-xylene or THF.
Polymer organic solar cells based on PM6:DTY6 processed in non-halogenated solvent o-xylene achieved power conversion efficiency of 16.1% with the following simple structure.
Device structure: indium tin oxide (ITO)/PEDOT:PSS/PM6:DTY6 (1:1.2, w/w, polymer weight concentration of 8 mg/mL)/PFNBr/Ag. [1]
| Thickness (nm) | VOC (V) | JSC (mA cm-2) | FF (%) | PCEmax (%) |
| 110 ± 20 nm | 0.848 | 25.3 | 75.1 | 16.1 |
Chemical Structure
General Information
| Purity | >99% (1H NMR) |
| Full name | 2,2'-((2Z,2'Z)-((12,13-bis(2-decylteradecyl)-3,9-diundecyl-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 |
| Synonyms |
BTP-4F-24, Y6-DT |
| Chemical formula | C114H150F4N8O2S5 |
| CAS number | n.a. |
| Molecular weight | 1900.83 g/mol |
| HOMO / LUMO | HOMO = -5.67 eV, LUMO = -4.04 eV [1] |
| Absorption | λmax 716 nm (in o-xylene), 836 nm (in o-xylene processed film) |
| Classification / Family | 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. |
