| 摘要 |
According to the present invention, there is provided a sheet set for encapsulating a solar cell which is disposed between a light-receiving surface side protective member and a back surface side protective member, and is used for encapsulating a solar cell element and a wiring material. The sheet set for encapsulating a solar cell includes a first encapsulating material sheet disposed on a light-receiving surface side and a second encapsulating material sheet disposed on a back surface side. A storage elastic modulus (P 1 ) of the first encapsulating material sheet before a cross-linking treatment and a storage elastic modulus (P 2 ) of the second encapsulating material sheet before the cross-linking treatment satisfy a relationship of the following Expression (1), at 120°C when solid viscoelasticity is measured under conditions of a measurement temperature range of 25°C to 180°C, a frequency of 1.0 Hz, a temperature rising rate of 10°C/minute, and a shear mode. Log P 1 / P 2 > 0 |
