| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a backsheet for a solar cell which has dark-colored appearance and is superior in heat resistance, flexibility, weatherability and resistance to scratches, and to provide a solar cell module with the backsheet. <P>SOLUTION: The backsheet (1) for the solar cell sequentially includes a first resin layer (11), a second resin layer (12), a third resin layer (13) and a fourth resin layer (14). At least one of the first resin layer, the second resin layer and the third resin layer is an infrared-transparent colored resin layer. The fourth resin layer is a rear protective layer. A thickness H<SB>A</SB>of the first resin layer, a thickness H<SB>B</SB>of the second resin layer and a thickness H<SB>C</SB>of the third resin layer satisfy formulas of 0.4≤(H<SB>A</SB>+H<SB>C</SB>)/H<SB>B</SB>≤2.4 and 0.7≤H<SB>A</SB>/H<SB>C</SB>≤1.3. In addition, when light with a wavelength of 800-1,400 nm is radiated to the surface of the first resin layer of the backsheet for the solar cell, reflectivity against the light is less than 50%. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
