6TIC, also called IXIC (CAS 2244414-53-5), is an n-type non-fullerene acceptor (NFA) for organic photovoltaics and polymer solar cell research. The molecule follows an acceptor–donor–acceptor (A–D–A) design: an electron-rich fused terthieno[3,2-b]thiophene core flanked by two electron-withdrawing 1,1-dicyanomethylene-3-indanone (IC) end groups.
Compared with 4TIC (IHIC), the two additional outward thieno[3,2-b]thiophene units give 6TIC a more planar backbone, which supports more efficient molecular packing and charge transport. Its longer effective conjugation length brings higher electron mobility and stronger intramolecular charge transfer (ICT), along with a higher-lying HOMO level and a slightly narrower bandgap. As a thin film, 6TIC absorbs strongly and broadly between 600 and 900 nm, with an onset at ~905 nm.
In a ternary polymer solar cell using PBTA-PS as donor with LA1 and 6TIC as binary acceptors, a PCE of 14.24% was reported, attributed to complementary absorption and co-crystallization. The material is supplied as a dark blue powder/crystals with purity ≥98% (1HNMR).
- Electron acceptor in non-fullerene polymer solar cells (NF-PSCs).
- Binary acceptor component in ternary organic solar cells, such as PBTA-PS:LA1:6TIC blends.
- Research on low band-gap small molecular acceptors for organic photovoltaics.
- Studies of molecular planarity, packing and charge transport in organic semiconducting materials.
| Brand | Ossila |
|---|---|
| CAS number | 2244414-53-5 |
| Molecular formula | C94H80N4O2S6 |
| Purity | ≥98% (1HNMR) |
| Category | — |
| Pack sizes | 100 mg, 250 mg, 500 mg, 1 g |
| Physical form | Dark blue powder/crystals |
| Storage | — |
- Product code: M2329A1
- Molecular Weight: 1490.06 g/mol
- Absorption: λmax 718 nm, 795 nm (Film)
- HOMO / LUMO: HOMO = -5.45 eV, LUMO = -3.94 eV
- Solubility: Chloroform, chlorobenzene
- Synonyms: IXIC
- Device PCE (PBTA-PS LA1 6TIC): 14.24%
- Device VOC: 0.84 V
- Device JSC: 22.33 mA cm-2
- Device FF: 75.94%
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