Patent ID: 8658888

Claim:
A structure comprising a surface of an incident light side of a transparent base material covered by water-and-oil-shedding transparent fine particles that are bound and fixed to the surface of said transparent base material, wherein a part of the surface of said transparent fine particles is bound to a first silane film compound, which has a first functional group at one end and is bound to the surface of said transparent fine particles at the other end; a part of the surface of said transparent base material is bound to a second silane film compound, which has a second functional group at one end and is bound to the surface of said transparent base material at the other end, wherein either said first or second functional group is an epoxy group, and the other is an amino or imino group; and said transparent fine particles are bound and fixed to the surface of said transparent base material by a covalent bond formed by a reaction between said first functional group and said second functional group, and wherein the structure is a solar energy utilization device; and wherein said transparent fine particles cover the surface of said transparent base material with a single layer.