Perovskite cell, photovoltaic module, photovoltaic power generation system and electrical device

A perovskite cell, comprising:

• a wide absorption spectrum perovskite layer located between a transparent substrate layer and an electrode layer, wherein the wide absorption spectrum perovskite layer comprises a three-dimensional perovskite and a light-conversion material, the light-conversion material is in a granular form and dispersed in the three-dimensional perovskite while maintaining a granular morphology, at least part of the light-conversion material is distributed in intergranular gaps of the three-dimensional perovskite, and the light-conversion material comprises an up-conversion material and a down-conversion material,
• wherein the up-conversion material comprises NaYGd and Er, the down-conversion material comprises at least one selected from tetraethyl rhodamine, Riboflavin, and Phycoerythrin.
• wherein, based on a mass of the wide absorption spectrum perovskite layer, a percentage mass content of the down-conversion material is 1%-6%, a percentage mass content of the up-conversion material is 1%-6%.