Patent ID: 10081871

Abstract:
The present invention relates to a metal oxide layer structure formed on the surface of a substrate, in which the atomic numbers of the element metal and the element oxygen in the metal oxide layer are in a non-stoichiometric ratio, so that the metal oxide layer has a high density corresponding to 90-100% of the metal oxide before coating and is free of cracks and pores. The metal oxide layer structure is formed of a metal oxide represented by XaYb (X: a metal element, Y: the element oxygen, a: the atomic number of the metal element, and b: the atomic number of the element oxygen), and the atomic percent of the metal element is greater than {a/(a+b)}×100(%). The layer structure is formed of nano-crystalline particles and nano-amorphous particles, and the particles forming the layer structure do not undergo heat-induced growth and heat-induced conversion to crystalline particles.