Abstract: The present application provides an organic compound and use thereof, a passivation film, a solar battery, and an electrical apparatus. The organic compound is as shown in formula (1) or is an oxyacid radical salt of the compound as shown in formula (1), wherein Ar is selected from any one of substituted or unsubstituted aryl with 6 to 50 ring atoms, substituted or unsubstituted heteroaryl with 5 to 50 ring atoms, or substituted arylamino as shown in formula (A); L is selected from acyclic alkylene with 1 to 10 carbon atoms; and R1 is an oxyacid group. The organic compound is capable of improving photon-to-electron conversion efficiency and stability of a solar battery device.

Abstract: Provided are an ionic compound and an application thereof, a perovskite precursor solution, a perovskite material, a solar material, a solar cell, and an electric apparatus. The ionic compound has a structure represented by any one of formulas (1) to (3). The ionic compound can improve the stability of perovskite materials and thus improve the efficiency and stability of solar cells.

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.