| abstract |
The present invention relates to the composition that comprises following component: (a) formula (I) compound and (b) polymer material, the specific oligomer of formula I and its use as organic semiconductor in organic devices, especially in organic photovoltaic devices ( solar cells) and photodiodes, or use in devices containing diodes and/or organic field effect transistors. High energy conversion efficiencies, excellent field-effect mobility, good current on/off close ratio and/or excellent stability. |