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Product Code M2301A1-100mg
Price $450 ex. VAT

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eC9-2Cl for devices with efficiencies approaching 19%

Sister compound to BTP-eC9, available from £360


eC9-2Cl is another highly efficient non-fullerene acceptor that belongs to the Y6 acceptors family. With a fused thienothienopyrrolo-thienothienoindole (TTP-TTI) core, eC9-2Cl is a sister compound to BTP-eC9 with two less chlorine atoms on the peripheral benzene end groups. Comparing to BTP-eC9, the absorption of eC9-2Cl is blue shifted for about 20 nm at its maximum absorption with elevated HOMO/LUMO energy levels.

Device efficiency approaching 19% (certified value of 18.7%) has been achieved by using PBQx-TF as the polymer donor and eC9-2Cl and F-BTA3 as a mixed electron acceptors in single junction organic photovoltaic cells.

High efficient non-flullerene acceptor

High efficient non-flullerene acceptor

With highly conjugated core

Enhanced solubility

Enhanced solubility

with butyloctyl alkyl chains

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Green energy material

Green energy materials

Processable in non-halogenated solvents

Device structure: ITO/PEDOT:PSS/PBQx-TF:eC9-2Cl:F-BTA3 (1:1.2:0.2)/PNDIT-F3N-Br/Al

Thickness (nm) VOC (V) JSC (mA cm-2) FF (%) PCE (%)
100 0.879 26.7 80.9 19.0

Chemical Structure

eC9-2Cl chemical structure, non-fullerene acceptors
Chemical structure of eC9-2Cl, non-fullerene acceptor

Literature and Reviews

  1. Single-Junction Organic Photovoltaic Cell with 19% Efficiency, Y Cui et al., Adv. Mater., 2102420 (2021); DOI: 10.1002/adma.202102420..
  2. Self-assembled Monolayer Enables Hole Transport Layer-Free Organic Solar Cells with18% Efficiency and Improved Operational Stability, Y. Lin et al., ACS Energy Lett., 5, 9, 2935–2944 (2020); DOI: 10.1021/acsenergylett.0c01421.
  3. Chlorination: An Effective Strategy for High-Performance. Organic Solar Cells, Q. Zhao et al., Adv. Sci., 7, 2000509 (2020); DOI: 10.1002/advs.202000509.

General Information

CAS Number N/A
Chemical Formula C86H96Cl2N8O2S5
Purity ≥98% (1H NMR)
Full Name 2,2'- [[12,13-Bis(2-butyloctyl)-12,13-dihydro-3,9-dinonylbisthieno[2'',3'':4',5']thieno[2',3':4,5]pyrrolo[3,2-e:2',3'-g][2,1,3]benzothiadiazole-2,10-diyl]bis[methylidyne(2 or 3-chloro-3-oxo-1H-indene-2,1(3H)-diylidene) ]]bis[propanedinitrile]
Molecular Weight 1504.96 g/mol
HOMO / LUMO HOMO = -5.57 eV, LUMO = -3.74 eV [1]
Solubility Chloroform, chlorobenzene and dichlorobenzene
Form Dark blue powder/crystal
Synonyms BTP-eC9-2Cl, eC9-Cl
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

MSDS Documentation

eC9-2Cl MSDS SheeteC9-2Cl MSDS sheet

Pricing

Batch Quantity Price
M2301A1 100 mg £360
M2301A1 250 mg £720
M2301A1 500 mg £1250
M2301A1 1 g £2300
M2301A1 5 g / 10 g* Please contact us for details

*for 5 - 10 grams order quantity, the lead time is 4 - 6 weeks


To the best of our knowledge the information provided here is accurate. 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.

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