Three-dimensional structure, method for producing same, and coating device

A method for producing a three-dimensional structure comprising:

• a main body preparation step of preparing a three-dimensional structure main body having a concave section and/or a convex section on a surface;
• a dispersion liquid preparation step of preparing a coating film precursor dispersion liquid comprises a coating film precursor that includes an alkoxide partial hydrolysis product by mixing a metal alkoxide or non-metal alkoxide with water;
• a precursor coating step of coating the coating film precursor dispersion liquid on the surface of the three-dimensional structure main body;
• and
• a coating film forming step of forming a coating film that includes the alkoxide hydrolysis product on the surface of the three-dimensional structure main body by rotating the three-dimensional structure main body which has been coated with the coating film precursor dispersion liquid so that a centrifugal force acts on a center of gravity thereof.

A coating device for coating a metal alkoxide or non-metal alkoxide partial hydrolysis product and/or alkoxide hydrolysis product on a surface of a three-dimensional structure main body having a concave section and/or a convex section on the surface, the coating device comprising:

• a rotating plate for fixing the three-dimensional structure main body;
• coater for coating a dispersion liquid including the alkoxide partial hydrolysis product on the surface of the three-dimensional structure main body fixed to the rotating plate;
• and
• rotating machine for rotating the three-dimensional structure main body fixed to the rotating plate, so that a centrifugal force acts on a center of gravity of the three-dimensional structure main body.