IDT-2Br, NFA with excellent thermal stability and a strong, broad absorption
High purity (≥98%) and able to give device performances of up to 12.1% efficiency
IDT-2Br, like o-IDTBR, has an electron-donating ladder-type fused five-member-ring indaceno[1,2-b:5,6-b′]dithiophene (IDT) core with 4-hexylphenyl side chains, flanked by two electron withdrawing benzothiadiazole moieties and rhodanine terminated groups.
IDT-2Br is a planar electron acceptor when it is compared with o-IDTBR, exhibiting excellent thermal stability, strong and broad absorption, relatively high electron mobility.
When PTB7-Th was used as the low band-gap donor polymer, mixed acceptors of F8IC and IDT-2Br demonstrated a great device performance with 12.1% efficiency
Device structure: indium tin oxide (ITO)/ zinc oxide (ZnO)/PCE10:IDT-2BR:F8IC/molybdenum oxide (MoO3)/Ag 
|Thickness (nm)||VOC (V)||JSC (mA cm-2)||FF (%)||PCE (%)|
|Purity||≥98% (1H NMR)|
|Form||Dark blue powder/crystals|
|Molecular weight||1518.20 g/mol|
|Absorption||λmax 636 nm (Chloroform); λmax 658 nm (Film)|
|HOMO / LUMO||HOMO = -5.52 eV, LUMO = -3.69 eV |
|Melting point||TGA 367 °C (5% weight loss) (lit.)|
|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.|
MSDS DocumentationIDT-2BR MSDS Sheet
|M2252A1||5 g / 10 g*||Please contact us for details|
*for 5 - 10 grams order quantity, the lead time is 4-6 weeks.
Literature and Reviews
- A planar electron acceptor for efficient polymer solar cells, Y. Wu et al., Energy Environ. Sci., 8, 3215-3221 (2015); doi: 10.1039/C5EE02477C.
- High-performance ternary organic solar cells with photoresponses beyond 1000 nm, P. Xue et al., J. Mater. Chem. A, 6, 24210-24215 (2018); doi: 10.1039/C8TA09042D.
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