岡山大学、2次元半導体ナノネットワークを開発

This is a press release on the results of joint research between Okayama University, Nagoya Institute of Technology, Nagoya University, Kanazawa University, and Keio University.

Key points of the announcement

• Using a unique method developed by the research group, they succeeded in synthesizing nanoscale network structures called dendrites of the semiconductor material transition metal dichalcogenide (TMDC).
• By using a nanoreactor where the interface between the monolayer TMDC and the growth substrate acts as a chemical reaction field, we have succeeded in synthesizing nanoscale dendritic structures.
• The development of this method will significantly contribute to the development of hydrogen generation catalysts that do not require conventional precious metals.

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Overview

A research group consisting of Research Associate Professor Hiroaki Suzuki of the Graduate School of Environmental, Life and Natural Sciences at Okayama University, Assistant Professor Kaito Hirata of the College of Applied Physics at Nagoya Institute of Technology, Professor Yasushi Takahashi of the Graduate School of Engineering at Nagoya University and the Nano Life Science Institute (WPI-NanoLSI) at Kanazawa University, Associate Professor Tokunaga Tomoharu of the Graduate School of Engineering at Nagoya University, Assistant Professor Shun Fujii of the Department of Physics at Keio University’s Faculty of Science and Technology, and Associate Professor Masayoshi Misawa of Fukuoka Institute of Technology has succeeded in synthesizing a nanoscale network structure called a TMDC dendrite, using the nanoscale space formed between an atomically thin semiconductor material and a growth substrate, and demonstrating its catalytic ability for hydrogen evolution reaction (HER).

TMDCs are two-dimensional materials with semiconducting properties and are three atoms thick. They are expected to be useful in electronic devices and electrochemistry because of their excellent electrical and optical properties in addition to mechanical flexibility. By forming these atomic layer materials into nanoscale network structures called dendrites, it is expected that their electrochemical functions will be improved.

This study proposed a unique method for synthesizing single-layer TMDC nanoribbons, which will contribute significantly to the development of next-generation nanoscale optoelectronic devices and the resolution of energy issues.

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