| abstract |
The present invention relates to novel compounds of formula (III), which can be used as heterocyclic dyes of unique structure and properties. These compounds can be obtained in a three-step synthesis from a simple substrate. The compounds according to the present invention have excellent solubility in an organic solvent and excellent film-forming properties. In addition, when the compound according to the present invention is used for an organic field effect transistor, an organic photovoltaic device (photovoltaic cell) and a photodiode, high energy conversion efficiency, excellent field effect mobility, good on / off current ratio and / can do. (III) |