Method for recovering efficacy of solar cell module and portable device thereof

Abstract

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 2 and 200 W/cm 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.

What is claimed is: 
     
         1 . A method for recovering an efficacy of a solar cell module, the method comprising:
 providing a solar cell module; and   scanning the solar cell module with a light-beam, wherein the light-beam has a power density between 20 W/cm 2  and 200 W/cm 2 , a width between 1 mm and 156 mm, and a scanning speed between 50 mm/sec and 200 mm/sec.   
     
     
         2 . The method of  claim 1 , wherein the light-beam has a wavelength between 450 nm and 1100 nm. 
     
     
         3 . The method of  claim 1 , further comprising heating the solar cell module up to a temperature between room temperature and 400° C. 
     
     
         4 . A portable device for recovering an efficacy of a solar cell module, comprising:
 a plate structure;   a light-beam generator disposed at a lower surface of the plate structure; and   a power supply disposed on an upper surface of the plate structure and electrically connected to the light-beam generator.   
     
     
         5 . The device of  claim 4 , further comprising a heating device disposed at one side or two sides of the light-beam generator. 
     
     
         6 . The device of  claim 4 , further comprising a L-shape structure connected to the lower surface of the plate structure. 
     
     
         7 . The device of  claim 6 , further comprising a heating device disposed on an upper surface of a lower portion of the L-shape structure.