A photovoltaic device has high photoelectric conversion efficiency and an electron-donating organic material including a conjugate polymer having a structure of a thieno[3,4-b]thiophene skeleton with an alkoxycarbonyl group in which a specific alkyl group part is a straight chain alkyl group or an alkanoyl group in which the alkyl group part is a straight chain alkyl group and a benzo[1,2-b:4, 5-b′]dithiophene skeleton with a heteroaryl group.
一种光伏器件具有高光电转换效率,其中包括一种电子给体有机材料,包括一种共轭聚合物,其具有一种
噻吩[3,4-b]
噻吩骨架结构,其中具有一种特定的烷基部分的
羧酸醇酯基团,该烷基部分是一种直链烷基或一种烷酰基,其中烷基部分是一种直链烷基,并具有一种杂环芳基的苯并[1,2-b:4,5-b′]
噻吩骨架。