Solar cell and preparation method thereof, photovoltaic module, and photovoltaic apparatus

Abstract

A solar cell and a preparation method thereof, a photovoltaic module, and a photovoltaic apparatus. The solar cell includes a first electrode layer, a hole transport layer, a first light absorption layer, an interconnection layer, a second light absorption layer, an electron transport layer, and a second electrode layer that are sequentially arranged along a first direction. The interconnection layer includes an SnOx layer. The SnOx layer includes at least three types of SnOx materials. x gradually decreases from 2 to 1 along the first direction.

Dependencies are inferred from the claim text.