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Non-Fullerene Acceptors

N3
Product Code M2324A1-50mg
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N3, small molecule non-fullerene acceptor and Y6 family member

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

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.

Chemical Structure

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

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.
  4. Thermoplastic Elastomer Tunes Phase Structure and Promotes Stretchability of High-Efficiency Organic Solar Cells, Z. Peng et al., Adv. Mater., 2106732 (2021); DOI: 10.1002/adma.202106732.
  5. Modulation of Morphological, Mechanical, and Photovoltaic Properties of Ternary Organic Photovoltaic Blends for Optimum Operation, Z. Peng et al., Adv. Energy Mater., 2003506 (2021); DOI: 10.1002/aenm.202003506.
  6. Self-assembled Monolayer Enables Hole Transport Layer-free Organic Solar Cells with 18% Efficiency and Improved Operational Stability, Y. Lin et al., ACS Energy Lett., 5, 9, 2935–2944 (2020); DOI: 10.1021/acsenergylett.0c01421..

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

MSDS Documents

N3 MSDSN3 MSDS Sheet

Pricing

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

To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, military, pharmaceuticals, cosmetics, food, or commercial applications.

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