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.
|Molecular weight||458.21 g/mol|
Classification / Family
|Benzothiadiazole, Bromothiophene, Semiconductor synthesis, Low band gap polymers, Acceptors, Organic Photovoltaics, Polymer solar cells|
|Appearance||Red needles / powder|
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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