5,6-Difluoro-4,7-dibromobenzo[c][1,2,5]thiadiazole is the building block/monomer for organic semiconductor synthesis in the application of light-emitting diodes and photovoltaic devices. Extra fluorine atoms on the benzothiadiazole ring makes the compounds more electron-withdrawing when the unit is embedded into low-band gap polymer semiconductors, to introduce better electron affinity and further lower the band gap of the semiconducting materials.
It is the intermediate for the synthesis of i.e. 4-7-bis(5-bromo-4-2-octyldodecylthiophen-2-yl)-5,6-difluorobenzo[c][1,2,5]-thiadiazole which is the monomer for polymer semiconductor PffBT4T-2OD (PCE11) with high device performance efficiency.
Synthesis of 4-7-bis(5-bromo-4-2-octyldodecylthiophen-2-yl)-5,6-difluorobenzo[c][1,2,5]-thiadiazole with 5,6-difluoro-2,3-diamine dihydrochloric acid via 5,6-difluoro-4,7-dibromobenzo[c][1,2,5]-thiadiazole
Benzothiodiazole, Fluorinated compounds, Organic materials, Semiconductor synthesis, Acceptors, Organic Photovoltaics, Polymer solar cells, Monomers, Building blocks
Product Details
Purity
>98%
Melting point
153-156°C
Colour
White/Off-white crystalline solid
Chemical Structure
Chemical structure of 5,6-Difluoro-4,7-dibromobenzo[c][1,2,5]thiadiazole
MSDS Documentation
DFBT MSDS sheet
Literature and Reviews
Development of Fluorinated Benzothiadiazole as a Structural Unit for a Polymer Solar Cell of 7% Efficiency, H. Zhou et al., Angew. Chem. Int. Ed., 50, 2995-2998 (2011)
Fluorinated Benzothiadiazole-Based Conjugated Polymers for High-Performance Polymer Solar Cells without Any Processing Additives or Post-treatments, N. Wang et al., J. Am. Chem. Soc., 135 (45), 17060-17068 (2013)
Highly Efficient Inverted Organic Solar Cells Through Material and Interfacial Engineering of Indacenodithieno[3,2- b ]thiophene-Based Polymers and Devices, J.J. Intemann et al., Adv. Funct. Mater., 24, 1465-1473 (2014)
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.
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