Perovskite solar cell and perovskite solar assembly thereof

The utility model discloses a perovskite solar cell and a perovskite solar assembly thereof. The perovskite solar cell comprises a light-transmitting substrate, a transparent conductive electrode layer, a hole transport layer, a perovskite photosensitive layer, an electron transport layer and a metal electrode layer which are sequentially stacked. An energy level matching gradient layer is also arranged between the hole transport layer and the perovskite photosensitive layer, and the energy level matching gradient layer comprises a p-type doped polyaniline film. According to the perovskite solar cell, the p-type doped polyaniline is arranged on the hole transport layer to construct and form the hole transport energy level gradient layer, so that the energy level loss between the hole transport layer and the perovskite photosensitive layer in the prior art is effectively solved, the open-circuit voltage loss of the perovskite solar cell and the recombination loss of carriers during transport and extraction are