Electron transport material, preparation method and application thereof, solar cell and preparation method thereof

The invention relates to the technical field of semiconductors, in particular to an electron transport material, a preparation method and application thereof, a solar cell and a preparation method thereof. The electron transport material has good electron transport performance and high molecular stability. The invention relates to an electron transport material, which comprises one or more of compounds shown in the following structural general formula (I): # imgabs0 # (I), in the general formula (I), EWG is selected from any one of a cyano group, a carboxyl group, # imgabs 1 #, # imgabs 2 #, # imgabs 3 #, # imgabs 4 #, # imgabs 5 #, a hydroxyl group, an aldehyde group, halogen and an alkynyl group; # imgabs6 is a five-membered ring, a six-membered ring or a seven-membered ring; r1 is selected from any one of hydrogen, an ester group, a cyano group, a carboxyl group, amide, a substituted or unsubstituted C1-C10 alkyl group, a substituted or unsubstituted C2-C10 hetero-alkyl group, a substituted or unsubstitute