| abstract |
The present invention provides a fullerene derivative material, a preparation method thereof, and its application in perovskite solar cells; the fullerene derivative material includes an alkylammonium salt group, so that it can be used in alcohols or other The dissolving ability in green solvent, thus realizing the purpose of green processing, which is used in perovskite solar cells as an electron transport layer to promote the large-scale preparation of perovskite solar cells. Compared with the traditional C 60 , C 70 , PC 60 BM and PC 70 BM, the fullerenes added with indene derivatives showed stronger light absorption ability. When the fullerene derivative material is applied to the electron transport layer of a perovskite solar cell, the cell exhibits a higher photogenerated current. |