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CAS Number 2127354-15-6

Materials, Non-Fullerene Acceptors

Product Code M2239A1-100mg
Price £380 ex. VAT

IHIC, NFA with rigid planar structure to promote inter-molecular charge transport

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Specifications | Pricing and Options | MSDS | Literature and Reviews

IHIC (CAS number 2127354-15-6), also known as 4TIC, has an acceptor–donor–acceptor (A–D–A) structure consisting of an electron-rich fused hexacyclic unit dithienocyclopentathieno[3,2-b]thiophene core and two electron withdrawing 1,1-dicyanomethylene-3-indanone (IC) terminal units. The rigid planar structure of dithienocyclopentathieno[3,2-b]thiophene promotes inter-molecular charge transport.

IHIC exhibits strong absorption in the NIR range of 600–900 nm with extinction coefficient of up to 6 ×105 m−1 cm−1and high electron mobility of up to 2.4 × 10-3 cm2 V−1 s−1.

When PTB7-Th was used as the low band-gap donor polymer with IHIC as the narrow-bandgap non-fullerene acceptor, excellent device performance was demonstrated with a high power conversion efficiency (PCE) of 9.77%. The active layer exhibits strong NIR absorption but weak visible absorption while giving the device a semi-transparent nature.

Device structure: ITO/ZnO/PTB7-Th: IHIC/MoO3/Au(1 nm)/Ag(15nm)[1]

Thickness (nm) VOC(V) JSC(mA cm-2) FF (%) PCE(%)
100 0.754 19.01 68.1 9.77

General Information

CAS Number 2127354-15-6
Chemical Formula C90H80N4O2S4
Purity ≥99% (1HNMR)
Full Name 2,2'- [[4,4,9,9-tetrakis(4-hexylphenyl)-4,9-dihydrothieno[3',2':4,5]cyclopenta[1,2-b]thieno[2'',3'':3',4']cyclopenta[1',2':4,5]thieno[2,3-d]thiophene-2,7-diyl]bis[methylidyne(3-oxo1H-indene-2,1(3H)-diylidene) ]]bis-propanedinitrile
Molecular Weight 1377.88 g/mol
Absorption λmax796 nm (Film)
HOMO / LUMO HOMO = -5.28 eV, LUMO = -3.87 eV [1]
Solubility Chloroform, chlorobezene
Form Dark blue powder/crystals
Synonyms 4TIC
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

IHIC NFA acceptor
Chemical structure of IHIC


Batch Quantity Price
M2239A1 100 mg £380
M2239A1 250 mg £760
M2239A1 500 mg £1250
M2239A1 1 g £2300

MSDS Documentation


Literature and Reviews

  1. Fused Hexacyclic Non fullerene Acceptor with Strong Near Infrared Absorption for Semitransparent Organic Solar Cells with 9.77% Efficiency, W. Wang et al., Adv. Mater., 1701308 (2017); DOI: 10.1002/adma.201701308.
  2. Non fullerene Acceptors for Semitransparent Organic Solar Cells, S. Dai et al., Adv. Energy Mater., 1800002 (2018); DOI: 10.1002/aenm.201800002.
  3. Near-infrared organic photoelectric materials for light harvesting systems: Organic photovoltaics and organic photodiodes, B. Xie et al., InfoMat., 2, 57–91 (2020); DOI: 10.1002/inf2.12063.
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