High-crystallinity micromolecule donor material with multiple non-covalent bond effects as well as preparation method and application of high-crystallinity micromolecule donor material

The invention provides a high-crystallinity micromolecule donor material with multiple non-covalent bond effects as well as a preparation method and application of the high-crystallinity micromolecule donor material, and relates to the technical field of semiconductor materials. According to the present invention, difluoro substituted benzene or dialkoxy substituted benzene and 2, 3-dihydrothieno [3, 4-B]-[1, 4] dioxin (EDOT) are adopted as the core structure, and organic synthesis is performed to obtain the high-crystallinity small molecule donor material; the high-crystallinity micromolecule donor material is simple in structure, and can be applied to a ternary organic solar cell device as a third component, so that the performance of the device can be obviously improved, and the photoelectric conversion efficiency far higher than that of an original binary organic solar cell is realized. The result of the embodiment shows that when the high-crystallinity micromolecule donor material is applied to a ternary