High purity monomer for organic semiconductor synthesis
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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.
|Molecular weight||329.95 g/mol|
|Classification / Family||Benzothiodiazole, Fluorinated compounds, Organic materials, Semiconductor synthesis, Acceptors, Organic Photovoltaics, Polymer solar cells, Monomers, Building blocks|
|Colour||White/Off-white crystalline solid|
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)
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