Abstract: A method for recycling copper-indium-gallium-selenium (CIGS) waste is provided, comprising: vacuum distilling the CIGS waste to separate out selenium and obtain a distillation residue; electrolyzing the distillation residue to obtain copper and a remaining electrolyte containing indium and gallium; and separating indium and gallium from the remaining electrolyte containing indium and gallium. The method provides a novel route for recycling CIGS waste, the process is simple, and the environmental pollution caused by CIGS waste is decreased. Further, the residual raffinate can be reused in electrolyzing of the distillation residue as a copper sulfate electrolyte by adding appropriate amount of copper sulfate and sulfuric acid therein, such that the circulation of the copper sulfate electrolyte forms a closed cycle and the discharge of wastewater and pollution to the environment are reduced.

Abstract: The present disclosure relates to a solar cell and a manufacturing method therefor. The solar cell includes: a base substrate; an electrode layer set on a surface of the base substrate, the electrode layer set including a first electrode and a second electrode, and the first electrode and the second electrode being electrically insulated from each other; a photoelectric layer disposed on a side of the electrode layer set facing away from the base substrate and electrically connected to the first electrode, the photoelectric layer being provided with a first via, and the position of the first via corresponding to the position of the second electrode; and a window layer disposed on a side of the photoelectric layer facing away from the base substrate and electrically connected to the second electrode through the first via.

Abstract: The present disclosure relates to a thin film packaging method and device, a thin film packaging system, and a solar cell. The film packaging method includes: forming an inorganic barrier film on an electronic device formed with a metal oxide thin film, the inorganic barrier film being disposed on a surface of the metal oxide thin film; and performing a reduction treatment on the electronic device to cause a reduction reaction of the metal oxide thin film to obtain a corresponding molten metal, wherein the molten metal is filled and cured in a pore of the inorganic barrier film. In the technical solution, the pore in the inorganic barrier layer can be compensated, thereby improving the effect of the film packaging.

Abstract: The present disclosure relates to a thin film package device and a solar cell. The device is used for thin film package of a device to be packaged, and the device includes: a base substrate disposed on a side of the device to be packaged; and a thin film package layer disposed on the other side of the device to be packaged. The thin film package layer includes an inorganic thin film layer and an organic thin film layer, the organic thin film layer includes a first organic thin film layer closest to the base substrate, and the first organic thin film layer includes a plurality of discontinuous first organic thin film blocks. The technical solution can not only achieve the effect of releasing stress, but also can effectively prevent lateral diffusion of moisture above the device to be packaged, thereby avoiding a wide range of moisture erosion.

Abstract: The present disclosure provides a method for separation of an organic film from a solar cell module, the separation method including the following steps: treating the solar cell module by a heat treatment in combination with a ultrasonic treatment; and performing separation of the treated solar cell module by buoyancy, thereby achieving the separation of the organic film from the module. The present disclosure uses the heat treatment in combination with the ultrasonic treatment to separate the organic film of the solar cell module, so that a stripping rate of the solar cell module reaches 97% or more, and the organic film after detachment does not adhere to the active material, the active material layer remains intact, the surface is clean and has no gelatin spots, and a loss rate is 1% or less, and thus the method is efficient, convenient, and easy to industrialize.