The present disclosure provides a method for recovering the efficacy of solar cell modules and a device thereof. The method includes providing a solar cell module and scanning the solar cell module with a light-beam. The light-beam has a power density between 20 W/cm.sup.2 and 200 W/cm.sup.2, a width between 1 mm and 156 mm. The light-beam scans a solar cell module with a scanning speed between 50 mm/sec and 200 mm/sec. Furthermore, the present disclosure also provides a portable device for recovering the efficacy of solar cell modules. The portable device includes two types such as placed type and hand-held type. The aforementioned devices can perform a hydrogenating process on solar cell modules to improve the degree of light-induced degradation (LID) so as to improve the photovoltaic conversion efficiency of solar cell modules.

The disclosure relates to solar cell, and especially to a method for manufacturing a crystalline silicon solar cell module. The method includes: a) providing a solar cell module to be laminated, including a back plate, a first bonding layer, a crystalline silicon solar cell component, a second bonding layer and a top plate in contact in sequence, where the crystalline silicon solar cell component is a crystalline silicon solar cell or a cell string formed by connecting multiple crystalline silicon solar cells; b) laminating the solar cell module to be laminated under current injection, to obtain a laminated solar cell module; and c) installing a frame and a junction box on the laminated solar cell module, to obtain a crystalline silicon solar cell module. The crystalline silicon solar cell module is under the current injection during the laminating process, improving the performance against light-induced degradation.

The disclosure relates to solar cell, and especially to a method for manufacturing a crystalline silicon solar cell module. The method includes: a) providing a solar cell module to be laminated, including a back plate, a first bonding layer, a crystalline silicon solar cell component, a second bonding layer and a top plate in contact in sequence, where the crystalline silicon solar cell component is a crystalline silicon solar cell or a cell string formed by connecting multiple crystalline silicon solar cells; b) laminating the solar cell module to be laminated under current injection, to obtain a laminated solar cell module; and c) installing a frame and a junction box on the laminated solar cell module, to obtain a crystalline silicon solar cell module. The crystalline silicon solar cell module is under the current injection during the laminating process, improving the performance against light-induced degradation.

A photovoltaic module includes a plurality of photovoltaic cells and a controllable heater for heating the plurality of photovoltaic cells to a temperature of at least 90 degrees Celsius for a minimum of 10 minutes, the plurality of photovoltaic cells in a manufactured state such that the plurality of photovoltaic cells are capable of producing electricity when illuminated. In one embodiment, controllable heater includes an infrared absorber, where the infrared absorber is adapted for moving between a stored position and a deployed position, and where the infrared absorber is adapted for heating the photovoltaic module using absorbed infrared radiation when in the deployed position.

An apparatus for restoring efficiency of a photovoltaic cell includes an illumination module for illuminating one or more photovoltaic cells such that the one or more photovoltaic cells receive a time integrated irradiance equivalent to at least 5 hours of solar illumination. The apparatus includes an annealing module for annealing the one or more photovoltaic cells at a temperature above 90 degrees Celsius for a minimum of 10 minutes, the annealing in response to illuminating the one or more photovoltaic cells.

Disclosed is a manufacturing method of a solar cell, including forming a photoelectric converter including an amorphous semiconductor layer, forming an electrode connected to the photoelectric converter, and performing a post-treatment by providing light to the photoelectric converter and the electrode.

A method for treating a stack includes a substrate of n-doped crystalline silicon and a passivation layer of hydrogenated amorphous silicon disposed on a face of the substrate, the method including exposing the stack to electromagnetic radiation during a treatment period (t) less than or equal to 12 s, the electromagnetic radiation having an irradiance (E) greater than or equal to 200 kW/m.sup.2.

A method for reducing light-induced-degradation in manufacturing a solar cell, includes the steps of: (a) irradiating the solar cell with an irradiance; (b) maintaining the solar cell within a temperature range; (c) removing the solar cell away from the irradiance of step (a) after a time; and (d) determining the irradiance, the temperature range, and the time such that the LID is optimally below a predetermined LID.

A method for reducing light-induced-degradation in manufacturing a solar cell, comprises the steps of: (a) irradiating the solar cell with an irradiance; (b) maintaining the solar cell within a temperature range; (c) removing the solar cell away from the irradiance of step (a) after a time; and (d) determining the irradiance, the temperature range, and the time such that the LID is optimally below a predetermined LID.

An apparatus, system, and method are disclosed for restoring efficiency of a photovoltaic cell. An illumination module illuminates photovoltaic cells so the cells receive a time integrated irradiance equivalent to at least 5 hours of solar illumination. After illumination, an annealing module anneals the photovoltaic cells at a temperature above 90 degrees Celsius for a minimum of 10 minutes. In one embodiment, the illumination module illuminates the photovoltaic cells for a time integrated irradiance equivalent to at least 20 hours of solar illumination. In another embodiment, the illumination module illuminates the photovoltaic cells for a time integrated irradiance equivalent to at least 16 hours of solar illumination while being heated to at least 50 degrees Celsius. In another embodiment, a solar concentrator irradiates the photovoltaic cells in sunlight for at least 10 hours and increases the irradiance of solar illumination on the cells by a factor of 2 to 5.