Electron acceptor organic solar cell material based on thiadiazole quinoxaline structure and preparation method and application of material

The invention discloses an electron acceptor organic solar cell material based on a thiadiazole quinoxaline structure and a preparation method and application of the material. The structural formula of the material disclosed by the invention is shown as a formula I, wherein in the formula I, pi is selected from any one of structures shown as a non-structure, a structure shown as a formula II and a structure shown as a formula III; in the formula I, A is selected from any one of a structure shown in a formula IV, a structure shown in a formula V and a structure shown in a formula VI; in the formula IV, X is at least one of hydrogen, fluorine, chlorine and methyl; in the formula I, R and R1 are both C1-C8 alkyl groups or alkoxy groups, R and R1 are the same or different, and the C1-C8 alkyl groups or alkoxy groups are straight chains or branched chains. The compound shown in the formula I is applied to preparation of solar cells. 本发明公开了基于噻二唑喹喔啉结构的电子受体有机太阳能电池材料及其制备方法与应用。本发明材料的结构式如式I所示：所述式I中，π选自无结构、式II和式III所示结构中的