Patent ID: 8860165

Claim:
A wavelength conversion-type photovoltaic cell sealing material, the sealing material comprising at least one light emitting layer containing a group of spherical phosphors, the group of spherical phosphors having a ratio of a median value D 50 of the group of spherical phosphors to a total thickness t of the light emitting layer of from 0.1 to 1.0, where the median value D 50 is a median value of a volume particle size distribution of the group of spherical phosphors, and an integrated value N of a number particle size distribution from D 25 to D 75 of the group of spherical phosphors being 5% or more when D 25 is a particle size value at 25% of an integrated value of the volume particle size distribution of the group of spherical phosphors and D 75 is a particle size value at 75% of the integrated value of the volume particle size distribution of the group of spherical phosphors.