| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a backside protective film for solar cell exhibiting excellent photoelectric conversion efficiency when receiving sunlight, or the like, on the surface, excellent appearance of dark color tone, and excellent heat resistance, flexibility and moldability, and a solar cell module. <P>SOLUTION: The backside protective film (1) for solar cell is a laminate film where a layer (A layer) (11) containing an infrared ray permeable colorant compound composed of at least two kinds of colorant and a rubber-containing aromatic vinyl resin, a layer (B layer) (12) containing a white colorant and a rubber-containing aromatic vinyl resin, and a layer (C layer) (13) containing a saturated polyester resin are laminated sequentially. The film forming the C layer has a rate of change in size of ±0.5% between before and after leaving at 135°C for 30 minutes. When light having a wavelength of 740 nm is radiated to the surface of the laminate film on the A layer side, reflectance for that light is 20% or higher. <P>COPYRIGHT: (C)2013,JPO&INPIT |
