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Product Code M2324A1-50mg
Price £260 ex. VAT

N3, small molecule non-fullerene acceptor and Y6 family member

Exhibits optimum properties of domain size and crystallinity resulting in excellent device performance

Specifications | Pricing and Options | MSDS | Literature and Reviews

N3 (Y6-N3) is another non-fullerene acceptor that belongs to the Y6 family. The only difference between N3 and Y6 is that the location of the branching points on the inside branched side chains and a slightly longer chain (3-ethylheptyl) for N3, while Y6 has classic 2-ethylhexyl branched side chains. With 3rd-position branched alkyl chains, N3, exhibits optimum properties in terms of domain size, crystallinity, and more dominant face-on orientation of the π-π stacking.

difference between N3 and Y6 in structure
The difference between N3 and Y6

Non-fullerene acceptor N3 has a clear solid-state aggregation transition at 82 °C. The shifting of the branching position of the alkyl chains increases the solubility of the molecule significantly from 40 mg/mL for Y6 to 64 mg/mL for N3 in chloroform.

Optimised photovoltaic devices using a binary acceptor system with N3:PC71BM as the acceptors and PBDB-T-2F (PM6) as the polymer donor shows efficient device performance with power conversion efficiencies (PCEs) of up to 16.74% (device 1), and 18.69% while D18-Cl:N3:PC61BM (1:1.4:0.1) is used as the active layer materials (device 2).

Device structure 1: ITO/PEDOT:PSS/PM6:N3:PC71BM/PNDIT-F3N/Ag.

Thickness (nm) VOC (V) JSC (mA cm-2) FF (%) PCE (%)
110 0.850 25.71 76.6 16.74

Device structure 2: ITO/PEDOT:PSS/D18-Cl:N3:PC61BM (1:1.4:0.1)/PDIN/Ag.

Thickness (nm) VOC (V) JSC (mA cm-2) FF (%) PCE (%)
114 0.849 28.22 78.0 18.69
Y6 (BTP-4F) from Ossila was used in the high-impact paper (IF 29.37)

Y6 (BTP-4F) from Ossila was used in the high-impact paper (IF 29.37), Triplet-Charge Annihilation in a Small Molecule Donor: Acceptor Blend as a Major Loss Mechanism in Organic Photovoltaics, J. Marin-Beloqui et al., Adv. Energy Mater., 2100539 (2021); DOI: 10.1002/aenm.202100539.

General Information

CAS Number N/A
Chemical Formula C84H90F4N8O2S5
Purity >99% (1H NMR)
Full Name 2,2'-((2Z,2'Z)-((12,13-bis(3-ethylheptyl)-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
Molecular Weight 1479.98 g/mol
HOMO / LUMO HOMO = -5.65 eV, LUMO = -4.10 eV [1]
Synonyms Y6N3, Y6-N3
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

Chemical Structure

N3 chemical structure
Chemical structure of N3, non-fullerene acceptor


Batch Quantity Price
M2324A1 50 mg £260
M2324A1 100 mg £400
M2324A1 250 mg £950
M2324A1 500 mg £1650
M2324A1 1 g* £3100

*4 - 5 weeks lead time

MSDS Documents


Literature and Reviews

  1. Alkyl Chain Tuning of Small Molecule Acceptors for Efficient Organic Solar Cells, K. Jiang et al., Joule, 3 (12); 3020-3033 (2019); DOI: 10.1016/j.joule.2019.09.010.
  2. 18.69% PCE from organic solar cells, K. Jin et al., J. Semicond., 42(6), 060502 (2021); DOI: 10.1088/1674-4926/42/6/060502.
  3. Low Temperature Aggregation Transitions in N3 and Y6 Acceptors Enable Double-Annealing Method That Yields Hierarchical Morphology and Superior Efficiency in Nonfullerene Organic Solar Cells, Y. Qin et al., Adv. Funct. Mater., 2005011 (2020); DOI: 10.1002/adfm.202005011.
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