3results about How to "Improve light energy conversion efficiency" patented technology

This utility model discloses a support system for extending power generation by staggering peak hours of floating photovoltaic power generation at sea, belonging to the field of photovoltaic power generation technology. It includes a float with multiple columns fixedly connected side-by-side on both sides, each column having a hinged inclined beam at its upper end; multiple adjustment mechanisms corresponding to the inclined beams, used to adjust the rotation angle of the inclined beams relative to the columns and maintain a fixed position at a specific angle; multiple purlins arranged parallel to the column arrangement direction and symmetrically fixed to the inclined beams on both sides of the float; and two sets of photovoltaic modules, respectively fixedly installed on the purlins on both sides of the float, facing due east and due west respectively, with their tilt angle changing with the tilt angle of the inclined beams. This utility model can extend power generation time by staggering peak power generation through symmetrical east-west arrangement. Simultaneously, the change in azimuth angle reduces the shadow distance between the front and rear modules, reducing the size of the float and lowering relative costs. Furthermore, the maximum power can be tracked in real time by adjusting the angle, improving power generation efficiency and float area utilization.

The invention provides a self-powered geological disaster monitoring device which comprises a cabinet, the side wall of the cabinet is rotatably connected with a solar panel, and a light sensor is arranged in the solar panel; a solar light following module, a battery module and a disaster monitoring module are arranged in the cabinet, and the battery module is used for storing photovoltaic converted electric energy and supplying power to each module; the solar light following module comprises a control board card and a driving mechanism, the control board card is electrically connected with the light sensor and the driving mechanism, and the driving mechanism is used for adjusting the orientation of the solar panel; the control board card is configured to control the driving mechanism to move according to the incident angle of sunlight when the illumination intensity is greater than a preset threshold value; when the illumination intensity is smaller than a preset threshold value, the theoretical incident angle of sunlight is calculated through an astronomical algorithm, and the driving mechanism is controlled to move according to the theoretical incident angle. According to the invention, long-term stable self-power supply of the device in a field environment without a power grid is realized.

The application relates to a perovskite laminated solar cell. The perovskite laminated solar cell comprises a crystalline silicon cell and at least one perovskite cell, each perovskite cell comprising a first transparent electrode, a buffer layer, a first carrier transport layer, a perovskite layer, a second carrier transport layer and conductive glass which are sequentially arranged from top to bottom; each perovskite cell further comprises at least one metal grid line which extends on the first transparent electrode in the horizontal direction; the crystalline silicon cell comprises at least one metal main grid which is arranged at the top and / or bottom of the crystalline silicon cell and extends in the horizontal direction; the metal grid line and the metal main grid have the same extending direction; the number of the at least one metal grid line is the same as that of the at least one metal main grid, and the at least one metal grid line is arranged above the at least one metal main grid one by one. The perovskite laminated solar cell improves the light energy conversion efficiency of the four-terminal laminated cell.