Abstract: The invention discloses a laminated cell structure, the laminated cell structure comprising a top cell unit, a bottom cell unit, and an intermediate layer located between the top cell unit and the bottom cell unit; the intermediate layer being configured as a tunnel junction composed of a p+/n+ double-layer silicon thin film; the top cell unit comprising an electron transport layer, a perovskite photosensitive layer, a hole transport layer sequentially laminated in the direction from the distance to the vicinity with respect to the intermediate layer, and a front electrode provided on the electron transport layer; and the bottom cell unit being a PERC solar cell. The invention also correspondingly discloses a preparation method for the laminated cell structure. According to the invention, good perovskite cell performance can be obtained by adopting a silicon thin film tunnel junction structure. The laminated cell with the structure has high photoelectric conversion efficiency.

Abstract: Provided are an intelligent solar photovoltaic module circuit and a control method therefor. The circuit includes: multiple photovoltaic strings connected in series, where each of the photovoltaic strings includes an intelligent photovoltaic module unit and a maximum power point tracking (MPPT) functional module connected in series with the intelligent photovoltaic module unit; a central processing unit (CPU) memory module configured to receive and analyze a state of the intelligent photovoltaic module unit; and a control module electrically connected with the CPU memory module and configured to control a MPPT function, where each of the photovoltaic strings is connected with a switch transistor configured to short-circuit the intelligent photovoltaic module unit or disconnect the photovoltaic string from other photovoltaic strings, and the switch transistor is controlled by the control module.