COMPOSITE STRUCTURE, PRODUCT USING SAME, AND METHOD FOR PRODUCING COMPOSITE STRUCTURE

摘要

Disclosed is a composite structure which comprises a base (X) and a layer (Y) that is arranged on the base (X). The layer (Y) contains a reaction product (R), and the reaction product (R) is obtained by reacting at least a metal oxide (A) and a phosphorus compound (B) with each other. The peak position of the binding energy of the 1s electron orbital of an oxygen atom as determined by X-ray photoelectron spectroscopy of the layer (Y) is at 532.0 eV or higher, and the half-value width of the peak is less than 2.0 eV.