Burbling the Takasina rank titania nano sheet super thin film and that

摘要

PROBLEM TO BE SOLVED: To provide a dense, high-quality titania nano-sheet the thickness of which is controlled on a nanometer level by a simple means, to eminently reduce time and expense, and to form an ultra-thin titania sheet which can correspond to an object with a complex shape.;SOLUTION: By a process in which a substrate is immersed in a cationic organic polymer solution to adsorb the organic polymer on the surface of the substrate and immersed in a nano-sheet colloidal solution with flaky particles suspended, the flaky particles are adsorbed in a self-assembling manner on the substrate by an electrostatic action. After that, the substrate is subjected to ultrasonic treatment in an alkaline aqueous solution. In this way, the overlapping part of the flaky particles can be removed or reduced.;COPYRIGHT: (C)2004,JPO&NCIPI