o-IDTBR, widely used as an n-type NFA in organic polymer photovoltaics
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Specifications | Pricing and Options | MSDS | Literature and Reviews
o-IDTBR, CAS number 2077945-91-4, is a small molecule acceptor which demonstrates an acceptor-acceptor–donor–acceptor-acceptor (A-A'–D–A'-A) structure. This consists of an electron-donating ladder-type fused five-member-ring indaceno[1,2-b:5,6-b′]dithiophene (IDT) core with aliphatic n-octyl side chains flanked by two electron withdrawing benzothiadiazole moieties and rhodanine terminated groups.
With a maximum absorption at around 600 – 730 nm and reduced charge recombination losses, o-IDTBR has been widely used as an n-type non-fullerene acceptor (NFA) in polymer organic photovoltaics. Among its useful properties, it shows promising stability under ambient conditions and exhibits outstanding photovoltaic performance.
Using PTB7-Th as the low band-gap donor polymer, mixed acceptors of o-IDTBR and o-IDFBR have demonstrated impressive device performance. An efficiency of 11.0 ± 0.4% and a high open-circuit voltage of 1.03 ± 0.01 has been reported.
High efficient non-fullerene acceptor
with highly conjugated core
Low Cost
Low Cost o-IDTBR
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Quick and reliable shipping
High purity
>98% High purity
Device structure: indium tin oxide (ITO)/ zinc oxide (ZnO)/PCE10:IDTBR:IDFBR (85 ± 5 nm) /molybdenum oxide (MoO3)/Ag [2]
| Thickness (nm) | VOC (V) | JSC (mA cm-2) | FF (%) | PCE (%) |
|---|---|---|---|---|
| 85 ± 5 | 1.03 ± 0.01 | 17.2 ± 0.1 | 60 ± 1 | 11.0 ± 0.4 |
o-IDTBR is available to buy online in quantities from 100 mg to 1 g (please contact us for larger orders). Larger quantities offer the best value, while smaller quantities may be more suitable for some applications. Eligible orders ship free.
General Information
| CAS Number | 2077945-91-4 |
|---|---|
| Chemical Formula | C72H88N6O2S8 |
| Purity | >98% (1HNMR) |
| Full Name | (5Z,5'Z)-5,5'-((7,7'-(4,4,9,9-tetraoctyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b']dithiophene-2,7-diyl)bis(benzo[c][1,2,5]thiadiazole-7,4-diyl))bis(methanylylidene))bis(3-ethyl-2-thioxothiazolidin-4-one) |
| Molecular Weight | 1326.03 g/mol |
| Absorption | λmax 600 – 730 nm (Film) |
| HOMO/LUMO |
HOMO = -5.56 eV LUMO = -3.93 eV [1] |
| Melting Point | 219 – 221 °C (lit.) |
| Solubility | Chloroform, chlorobezene |
| Form | Dark blue powder/crystals |
| Synonyms | IDTBR |
| 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
MSDS Documentation
o-IDTBR MSDS SheetPricing
| Batch | Quantity | Price |
|---|---|---|
| M2238A1 | 100 mg | £360 |
| M2238A1 | 250 mg | £720 |
| M2238A1 | 500 mg | £1250 |
| M2238A1 | 1 g | £2300 |
Literature and Reviews
- Carrier Transport and Recombination in Efficient “All-Small-Molecule” Solar Cells with the Nonfullerene Acceptor IDTBR, R. Liang et al., Adv. Energ. Mater., 8 (19), 1800264 (2018); doi: 10.1002/aenm.201800264.
- Reducing the efficiency–stability–cost gap of organic photovoltaics with highly efficient and stable small molecule acceptor ternary solar cells, D. Baran et al., Nat. Nater., 16, 363–369(2017); doi: org/10.1038/nmat4797.
- A Wide-Bandgap Donor Polymer for Highly Efficient Non-fullerene Organic Solar Cells with a Small Voltage Loss, S. Chen et al., J. Am. Chem. Soc., 139, 18, 6298–6301 (2017); doi: 10.1021/jacs.7b01606.
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