CAS Number 2089044-02-8
IEICO-4F (or IOTIC-4F), CAS number 2089044-02-8, is a low band-gap and low energy-loss non-fullerene acceptor showing an A-D-A type structure with extra thiophenes as spacers between the acceptor and donor units. The structure has an electron-donating fused five-member-ring indaceno[1,2-b:5,6-b′]dithiophene (IDT) core, terminated by two electron-withdrawing units, 2-(5,6-difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (IC-2F). IEICO-4F extends into the near infrared (NIR) region with maximum absorption around 860 nm, 200 nm red-shifted compared to ITIC.
IEICO-4F or IEICO-4Cl can also be used in high performance panchromatic organic photodetectors (OPDS). OPD device based on P3HT:IEICO-4F:PC71BM exhibited a high detectivity (D*) of 1.35 × 1012 Jones at 805 nm.
By incorporating a small molecule donor BIT-4F-T, combining the merits of complementary absorption of the visible light region (400 - 600 nm) to the polymer donor PTB7-Th and non-fullerene acceptor IEICO-4F, PTB7-Th:BIT-4F-T:IEICO-4F ternary organic solar cells showed improved efficiencies, reaching up to a PCE of 14.0%.
Device structure: ITO/ZnO (~35 nm)/PTB7-Th:BIT-4F-T:IEICO-4F (0.9:0.1:1, 10% BIT-4F-T) and (~150 nm)/MoOx (~7 nm)/Ag (~100 nm)
| Thickness (nm) | VOC(V) | JSC(mA cm-2) | FF (%) | PCE(%) |
| 150 | 0.723 | 27.30 | 70.9 | 14.0 |
Chemical structure of IEICO-4F, CAS 2089044-02-8
| CAS Number | 2089044-02-8 |
| Chemical Formula | C114H114F4N4O4S4 |
| Purity | >99% (1HNMR) |
| Full Name | 2,2'-((2Z,2'Z)-(((4,4,9,9-tetrakis(4-hexylphenyl)-4,9-dihydro-sindaceno[1,2-b:5,6-b']dithiophene-2,7-diyl)bis(4-((2-ethylhexyl)oxy)thiophene-5,2-diyl))bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1- diylidene))dimalononitrile |
| Molecular Weight | 1808.40 g/mol |
| Absorption | λmax 865 nm (Film), NIR absorption |
| HOMO / LUMO | HOMO = -5.44 eV, LUMO = -4.19 eV [1] |
| Solubility | Chloroform, chlorobenzene |
| Form | Dark blue powder/crystals |
| Synonyms | 2,2'- [[4,4,9,9-Tetrakis(4-hexylphenyl)-4,9-dihydro-s-indaceno[1,2-b:5,6-b']dithiophene-2,7-diyl]bis]] [[4-[(2-ethylhexyl)oxy]-5,2-thiophenediyl]methylidyne(5,6-difluoro-3-oxo-1H-indene-2,1(3H)-diylidene) ]]bis[propanedinitrile], IOTIC-4F |
| Classification / Family | NFAs, n-type non-fullerene electron acceptors, Organic semiconducting materials, Low band-gap small molecule, Small molecular acceptor, Organic photovoltaics, Organic photodetectors (OPDs), Polymer solar cells, NF-PSCs. |
专业代理国外知名镊子品牌
我们将竭诚为你服务
0755-23003036
粤ICP备14069686号