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Product Code B571

IDTTB6-2CHO has a fused Indacenodithienothiophene (IDTT) core structure with extended conjugation to the hexylphenyl side chain with large steric hindrance and electron-rich properties. 

Electron-rich IDTT is one of the most important building blocks for the design and synthesis of low-bandgap non-fullerene acceptors (NFAs), such as ITIC and ITIC-2F which are among the earliest developed NFAs for highly efficient organic photovoltaic devices.

General Information

CAS number 1878125-76-8
Chemical formula C70H74O2S4 
Molecular weight 1075.6 g/mol
Full name 6,6,12,12-Tetrakis(4-hexylphenyl)-6,12-dihydrodithieno[2,3-d:2',3'-d']-s-indaceno[1,2-b:5,6-b']dithiophene-2,8-dicarboxaldehyde
Synonyms IDTT-CHO, Dithieno[2,3-d:2,3-d]-s-indaceno[1,2-b:5,6-b]dithiophene-2,8-dicarboxaldehyde, 6,6,12,12-tetrakis(4-hexylphenyl)-6,12-dihydro
Classification / Family Indacenodithienothiophene (IDTT), Monomer and inermediates, ITIC, None-fullerene acceptors (NFAs), NFA-OSCs, printing electronics 

Chemical Structure

idttb6-2cho, 1878125-76-8
Chemical structure of IDTTB6-2CHO)

Product Details

Purity >98% (by NMR)
Melting point Not available
Appearance Yellow powder/crystals

MSDS Documentation


Literature and Reviews

  1. Impact of Nonfullerene Molecular Architecture on Charge Generation, Transport, and Morphology in PTB7-Th-Based Organic Solar Cells, X. Yi et al., Adv. Funct. Mater., 1802702 (2018); DOI: 10.1002/adfm.201802702.
  2. Performance Optimization of Parallel-Like Ternary Organic Solar Cells through Simultaneous Improvement in Charge Generation and Transport, W. Hadmojo et al., Adv. Funct. Mater., 1808731 (2019); DOI: 10.1002/adfm.201808731.
  3. Polymer Donors for High-performance Non-fullerene Organic Solar Cells, H. Fu et al., Angew. Chem. Int. Ed., 58 (14); 4442-4453 (2019); DOI: 10.1002/ange.201806291.
  4. Donor polymer fluorination doubles the efficiency in non-fullerene organic photovoltaics, N. Bauer et al., . Mater. Chem. A, 5, 22536 (2017); DOI: 10.1039/c7ta07882j.
  5. Fused Benzothiadiazole: A Building Block for n-Type Organic Acceptor to Achieve High-Performance Organic Solar Cells, J. Yuan et al., Adv. Mater., 1807577 (2019); DOI: 10.1002/adma.201807577.

To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.