Conjugated polymer, electron donating organic material, photovoltaic device material and photovoltaic device using the same

摘要

An object of the present invention is to provide a photovoltaic device having a high photoelectric conversion efficiency. An alkoxycarbonyl group in which a specific alkyl group portion is a linear alkyl group or an alkanoyl group in which an alkyl group portion is a linear alkyl group is provided. Electron-donating organics using conjugated polymers having a thieno [3,4-b] thiophene skeleton and a benzo [1,2-b: 4,5-b ′] dithiophene skeleton having a heteroaryl group material