Abstract: This application provides a perovskite solar cell structurally including a transparent electrode, an electron transport layer, a perovskite layer, a hole transport layer and a second electrode in sequence, where the perovskite layer may include a main perovskite layer and a one-dimensional perovskite coating layer covering surface and periphery of the main perovskite layer, where the one-dimensional perovskite coating layer may include: a first overlay layer disposed between the main perovskite layer and the electron transport layer; and a second overlay layer disposed between the main perovskite layer and the hole transport layer.

Abstract: The present application relates to a solar cell and a method for preparing the same, a photovoltaic module, and a power consuming device. The solar cell may have a plurality of sub-cells, each of the plurality of sub-cells including a first electrode layer, a photovoltaic conversion module, and a second electrode layer that may be sequentially stacked along a thickness direction of the sub-cell, the second electrode layer including a main body portion and a connection portion electrically connected to the main body portion, and the connection portion of one of the plurality of sub-cells being configured to be electrically connected to the first electrode layer of another sub-cell, such that the plurality of sub-cells may be electrically connected, where a thickness of the main body portion may be greater than that of the connection portion.