Bromothiophene Benzothiadiazole
Bromothiophene Benzothiadiazole, high purity red monomer
Used for the synthesis of semiconducting polymers
4,7-bis(5-bromothiophen-2-yl)benzo[c][1,2,5]thiadiazole is a red monomer used for the synthesis of polymer semiconductors i.e. PCDTBT in the application of photovoltaic solar cell devices.
4,7-bis(5-bromothiophen-2-yl)benzo[c][1,2,5]thiadiazole can be targeted by reacting 4,7-Dibromo-2,1,3-benzothiadiazole with N-Bromosuccinimide (NBS) in dichlorobenzene. Further reaction of the red monomer with 9-(heptadecan-9-yl)-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9Hcarbazole to afford PCDTBT.

Note: This product has been used in our lab for the synthesis of PCDTBT with device performance of 6.7% PCE.
General Information
CAS number | 288071-87-4 |
Chemical formula | C14H6Br2N2S3 |
Molecular weight | 458.21 g/mol |
Synonyms |
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Classification / Family |
Benzothiadiazole, Bromothiophene, Semiconductor synthesis, Low band gap polymers, Acceptors, Organic Photovoltaics, Polymer solar cells |
Product Details
Purity | >98% |
Melting point | 245-247°C |
Appearance | Red needles / powder |
Chemical Structure

Charaterisation

MSDS Documentation
4,7-bis(5-bromothiophen-2-yl)benzo[c][1,2,5]thiadiazole MSDS sheet
Literature and Reviews
- Molecular weight dependent vertical composition profiles of PCDTBT:PC71BM blends for organic photovoltaics, J.W. Kingsley et al., Sci. Reports, 4, 5286 (2014)
- Bulk heterojunction solar cells with internal quantum efficiency approaching 100%, S. Park et al., Nat. Photonics, 3, 297-302 (2009)
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