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SHI XU

Institute for Integrated InnovationsAssociate Professor

Researcher basic information

■ Degree
  • 博士, 北海道大学
■ URL
researchmap URLホームページURL■ Various IDs
J-Global ID■ Research Keywords and Fields
Research Keyword
  • Thin film deposition
  • Titanium dioxide
  • photocurrent generation
  • artificial photosynthesis
  • photoelectrochemistry
  • plasmonics
Research Field
  • Nanotechnology/Materials, Thin film/surface and interfacial physical properties
  • Nanotechnology/Materials, Nanostructural physics
■ Educational Organization

Career

■ Career
Career
  • Apr. 2016 - Mar. 2020
    Hokkaido University, Assistant Professor
  • Apr. 2014 - Mar. 2016
    Hokkaido University, Post-Doctoral researcher
Educational Background
  • Oct. 2010 - Mar. 2014, Hokkaido University, Graduate School of Information Science and Technology, Ph.D.
  • Sep. 2007 - Mar. 2010, Xi'an Jiaotong University, School of the Electronic and Information Engineering, Master
  • Sep. 2003 - Jul. 2007, Xi'an Jiaotong University, School of Science, Bechelor

Research activity information

■ Papers
■ Other Activities and Achievements
■ Research Themes
  • Construction of an innovative photoreaction fields that possess quantum coherent strong coupling and study of its fundamental principle
    Grants-in-Aid for Scientific Research
    12 Apr. 2023 - 31 Mar. 2028
    三澤 弘明; 笹木 敬司; 石 旭
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (S), Hokkaido University, 23H05464
  • 標的物質の高効率取込機構を持つ超高感度バイオセンシング技術の創成
    科学研究費助成事業
    01 Apr. 2024 - 31 Mar. 2027
    三友 秀之; 石 旭; 矢野 隆章
    日本学術振興会, 基盤研究(B), 北海道大学, 24K01275
  • Study on Dynamics of Plasmon-Induced Charge Carriers under the Modal Strong Coupling Conditions
    Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists
    01 Apr. 2020 - 31 Mar. 2022
    Shi Xu
    In this study, I focused on the dynamics of plasmon-induced electron under the strong coupling conditions. By constructing a Au-NPs/TiO2/Au-film structure with Au-NPs fully inlaid inside the TiO2, the strong coupling between the plasmon resonance of Au-NPs and the cavity resonance is verified to be strongly determined by the electric field in the cavity. Using this coupling strength tunable nanostructures, we studied the electron transfer from Au-NPs to TiO2 as well as the electron-electron, electron-phonon coupling of Au-NPs using transient spectroscopy with a reflection configuration. We found that under the strong coupling conditions, a higher photo-induced electron transfer was observed. In addition, based on the study of electron-electron coupling and electron-phonon coupling of Au-NPs, we found that the electron-electron coupling and/or electron-phonon coupling of Au-NPs were modified under the strong coupling conditions.
    Japan Society for the Promotion of Science, Grant-in-Aid for Early-Career Scientists, Hokkaido University, 20K15113
  • Plasmon-enhanced photoelectrochemical energy conversion on Au nanoparticles loaded titanium dioxide thin film
    Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)
    01 Apr. 2015 - 31 Mar. 2017
    Shi Xu
    In this study, the plasmon-induced water oxidation process was investigated via a in-situ SERS measurement. The interfacial structure effect on the charge separation was determined at the atomic layer scale. A tight contact between the metal nanoparticles and its support metal oxide is highly demanded for efficient plasmon-induced charge separation. Based on the understanding of the plasmon-induced water oxidation process and the interfacial structure effect on the charge separation, we successfully constructed a novel plasmonic structure, which shows strong light absorption, for broadband plasmon-enhanced solar energy conversion.
    Japan Society for the Promotion of Science, Grant-in-Aid for Young Scientists (B), Hokkaido University, 15K20833