2,6-bis(trimethytin)-4,8-bis(5-(2-ethylhexyl)-4-chlorothiophen-2-yl)benzo[1,2-b:4,5-b’]dithiophene (BDTTDClSn) is an electron-rich building block used for the synthesis of either small molecular donors or low band-gap polymer semiconductors (like PBDB-T-2Cl) for highly-efficient OSCs and OPV applications.
It is believed that electron density can be delocalised more effectively to the halogen atom in Th-Cl than in Th-F. Also bearing two ethylhexyl side chains, with fused thiophenes and thiophenes as electron-rich pendants, BDTTDClSn offers good solubility for the targeted materials.
|Molecular weight||973.46 g/mol|
|Classification / Family||Thiophene, Fused thiophene, Benzo-dithiophene heterocylic aromatics, Five-membered ring, Semiconductor synthesis intermediates, Low band-gap polymers, OFETs, Organic photovoltaics, Polymer solar cells|
|Purity||>99% (by HPLC)|
|Appearance||Light yellow crystals|
Literature and Reviews
- Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor, S. Zhang et al., Adv.Mater., 30, 1800868 (2018); DOI: 10.1002/adma.201800868.
- Chlorine substituted 2D-conjugated polymer for high-performance polymer solar cells with 13.1% efficiency via toluene processing, Q. Fan et al., Nano Energy 48, 413–420 (2018); doi: 10.1016/j.nanoen.2018.04.002.
- Fluorination vs. chlorination: a case study on high performance organic photovoltaic materials, Y. Zhang et al., Sci. China Chem., 61 (10), 1328–1337 (2018); doi: 10.1007/s11426-018-9260-2.
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.