To provide a metal oxide structure and a method for producing the structure which includes rod-shaped crystals formed on a substrate with high orientation and high density, and is useful as a light emitting element and a highly sensitive sensor, and the like, and to provide a light-emitting element.
The method for producing a metal oxide structure includes: a layer-forming step of forming a layer containing metal acetate hydrate on a sapphire substrate; an insolubilizing treatment step of subjecting the layer containing the metal acetate hydrate to an insolubilization treatment; and a growing step of immersing the sapphire substrate having the insolubilized layer in a reaction solution containing a metal ion and an NH4+ ion, so as to grow rod-shaped crystals each containing metal oxide as a main substance thereof.
Yoshihiro Nagare
Naoko Matsuda
Hiroshi Ikeda