| abstract |
The invention relates to the inclusion of one or moren□ (repeated) polymer of the unit,namong themnY is a group of formula □; and as IR absorptionnAgents for use as organic semiconductors in organic devices, especially in organic photovoltaic devices and photodiodes, or devices containing diodes and/or organic cells. The polymer of the present invention can have excellent solubility in an organic solvent and excellent film forming properties. In addition, when the polymer of the present invention is used for an airport-effect transistor, an organic photovoltaic device, and a photodiode, high energy conversion efficiency, excellent field-effect mobility, good on/off current ratio, and/or Or excellent stability. |