| abstract |
The invention relates to an ultra-low LUMO energy level multi-SN hetero-fused ring n-type organic semiconductor material, which can be applied to organic field effect transistors, organic thin film solar cells and perovskite cells. Using 1,5-diaminonaphthalene as the initial raw material, through multi-step synthesis, 5,11-difluoroquinoxaline[6,5-f]quinoxaline was obtained, which was then combined with 1,1-dicyanoethylene-2 , 2-sodium dithiolate reacts to obtain the multi-fused ring n-type semiconductor material. The material of the present invention is formed by condensing a plurality of aromatic rings, has a larger planar structure, and four strong electron-withdrawing groups (cyano groups) can effectively reduce the LUMO energy level of the molecule, which is a kind of material with good development prospects. of n-type semiconductor materials. |