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Department of Materials and Chemistry

Contributing to industrial competitiveness enhancement by synergistic interaction between materials and chemical technologies

We are developing technologies to enhance added value of functional chemicals, and to realize practical use of new materials, with strengthening value chains of materials through synergistic interaction between materials and chemical technologies in mind. Thus, we are aiming to contribute to the primary materials and chemical industries.

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New Research Results

Development of a Technology That Detects Only Fluorine-containing Gases Whose Biological Effects Are a Concern

AIST has developed a detection agent that can detect selectively and with high sensitivity fluorine-containing etching gases, which are used in semiconductor fabrication processes. The developed detection agent reacts with the double bonds of the etching gases, causing it to change color. Perfluorocarbons and similar gases that are used as refrigerants and cleaning agents do not react with the detection agent, since they consist solely of single bonds, with no double bonds, and therefore do not generate false alarms, even during replacement of the refrigerant. The researchers have also developed a prototype of a compact leak detector that uses the detection agent.

The developed detection agent (left) and changes in color when the agent comes into contact with fluorine-containing gases (right) figre

The developed detection agent (left) and changes in color when the agent comes into contact with fluorine-containing gases (right)

Creation of a Mathematical Method to Express Irregular Atomic Arrangements of Amorphous Materials

AIST has developed a mathematical method to express irregular atomic arrangements of amorphous materials. A method for concisely expressing arrangements of atoms that compose the material is necessary in order to understand the function of materials at an atomic level. However, because atoms are arranged irregularly in amorphous materials, expressing atomic arrangements is difficult. By the Voronoi polyhedra method, atoms are replaced with Voronoi polyhedra, and atomic arrangements are expressed as a model in which Voronoi polyhedra fill a space (polyhedral filing). The researchers created a theory that can express polyhedra and polyhedral tiling with concise sequences.

Structure of amorphous material (left) and expressions by the developed method (right) figure

Structure of amorphous material (left) and expressions by the developed method (right)

Open Innovation Laboratory

Since FY 2016, as a part of the “Open Innovation Arena concept” promoted by the Ministry of Economy, Trade and Industry (METI), AIST has been engaged in the provision of “Open Innovation Laboratories” (OILs), which are collaborative research centers established on university campuses.

AIST will merge the basic research carried out at universities, etc. with AIST’s goal-oriented basic research and applied technology development, and will promote bridging research and development and industry by the establishment of OILs.


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