Platform for atomic-order thermal probing and elucidation of wave-like heat conduction

2022 Fiscal Year Final Research Report

• Project/Area Number: 20H02090
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 19020:Thermal engineering-related
• Research Institution: Kyushu University
• Principal Investigator: Li Qin-Yi 九州大学, 工学研究院, 准教授 (60792041)
• Co-Investigator(Kenkyū-buntansha): 高橋 厚史 九州大学, 工学研究院, 教授 (10243924)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: ナノスケール熱物性

Outline of Final Research Achievements

Throughout this project, we developed high-resolution thermal property measurement methods based on Raman spectroscopy and scanning electron microscopy. We improved the temperature resolution of Raman-based thermal measurements. We also developed a method to simultaneously measure the thermal conductivity and observe the internal structure of 1D materials and introduced electron-beam heating for high-resolution thermal resistance mapping. In addition, we successfully fabricated ultrafine nanostructures in graphene to study phonons’ wave behaviors.

Free Research Field

熱工学

Academic Significance and Societal Importance of the Research Achievements

本研究にて得られた成果は、ナノスケール熱物性の新たな計測方法を開発することで、熱物性分野の発展に貢献した。本研究で開発した熱計測法はナノスケール伝熱機構の解明への応用を期待でき、電子機器の高度な熱管理技術の開発および高度な情報化社会の達成へ貢献できる。