4,7-Dibromobenzo[c]-1,2,5-thiadiazole

4,7-Dibromobenzo[c]-1,2,5-thiadiazole is the building block or monomer for the synthesis of light-emitting diodes and conducting polymers for organic electronics. It has been used as bulding block for photovoltaic device polymers and organic semiconductors. It is used as an intermediate for the synthesis of poly[N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT) and poly[2,1,3-benzothiadiazole-4,7-diyl[4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2,6-diyl]] (PCPDTBT). 4,7-Dibromobenzo[c]-1,2,5-thiadiazole functions as an electron-accepting material in organic electronic devices. It acts as a p-type semiconductor, facilitating the transport of positive charge carriers within the device and exhibits high electron mobility and good stability, making it suitable for use in organic field-effect transistors and organic photovoltaic devices.