Fuji Chemical Company, Limited

Public University Corporation Nagoya City University

Nagoya City University

Sachiko Onda

Fumio Uchida

Junpei Yamanaka

Akiko Toyotama

Tohru Okuzono

Masakatsu Yonese

Masaaki Yamamoto

Mariko Shinohara

Koki Yoshizawa

Tooru Okuzono

[Problem] To provide a method for producing a colloidal crystal, wherein the method is easily controlled and is capable of dealing with a wide range of types of colloidal particle. [Solution] The method for producing a colloidal crystal in the present invention is characterized by comprising a preparation step of preparing a colloidal dispersion liquid, in which colloidal particles are dispersed in a liquid comprising an ionic surfactant and a colloidal crystal can be formed due to temperature changes, and a crystallization step of formation of a colloidal crystal by changing the temperature of the colloidal dispersion liquid from a temperature region in which the colloidal crystal is not formed to a temperature region in which the colloidal crystal is formed.

Method for producing colloidal crystal and colloidal crystal

Provided is a process for producing colloidal crystals from which a large single crystal reduced in lattice defects and unevenness can be easily produced at low cost without fail. The process for colloidal crystal production comprises: preparing a colloidal polycrystal dispersion in which colloidal crystals precipitate at a given temperature (preparation step); introducing into a vessel The colloidal polycrystal dispersion in the state of containing fine colloidal polycrystals precipitated (introduction step); and melting the colloidal polycrystals and then recrystallizing the molten polycrystals (recrystallization step). The crystals thus obtained have fewer lattice defects and less unevenness than the original polycrystals.

Process for producing colloidal crystal and colloidal crystal

Growing community of inventors

Nagoya, Japan

Sachiko Onda