Crosslinking type organic electron transport layer material and application thereof

According to the synthesis and application of the cross-linked organic electron transport layer material provided by the embodiment of the invention, the structure of the cross-linked organic electron transport layer material has a 1, 4, 5, 8-naphthalene tetracarboxylic anhydride unit which can play a role in transporting electrons; a double-bond group or an epoxy group with two cross-linking sites can be highly cross-linked on the surface of the perovskite thin film, so that an ultrathin compact two-dimensional grid is formed. The introduction of the cross-linked organic electron transport layer material not only effectively inhibits non-radiative recombination on the surface of the perovskite thin film, but also improves the humidity stability of the perovskite thin film. And meanwhile, the photoelectric conversion efficiency and the filling factor of the prepared perovskite cell are improved. 本申请实施例提供一种交联型有机电子传输层材料的合成与应用，该交联型有机电子传输层材料的结构具有的1,4,5,8-萘四甲酸酐单元可以起到传输电子的作用，具有两个交联位点的双键基团或环氧基团因其能够在钙钛矿薄膜表面发生高度交联，形成超