In our laboratory, structures and electronic states of nano-materials for future electronic devices designed in atomic or molecular scale have been investigated. Especially, the surfaces and interfaces structures are key points of our researches. As a fundamental research, dynamic behavior of atoms or molecules on a well-defined semiconductor surface has been investigated for atomic-scale devises by using surface analysis techniques such as STM and XPS. Second topic for the fundamental research field is the atomic-scale 3D analytical techniques, such as photoelectron holography and X-ray fluorescent holography. For a practical research, fabrication and analysis of nano-materials have been performed for dye-sensitized solar cells, perovskite solar cells, thermoelectric materials, and sensors.

 我々の研究室では、原子スケールまたは分子スケールで設計された将来の電子デバイスを想定したナノ材料の構造および電子状態を調べています。 特に「表面」や「界面」の構造は私たちの研究の重要なポイントです。 基礎研究として、明確に定義された半導体表面上の原子または分子の動的挙動が、STMおよびXPSのような表面分析技術を駆使して調査されています。 基礎研究分野の2番目のトピックは、光電子ホログラフィや蛍光X線ホログラフィなどの原子スケールの3D分析技術です。また、 実用的な研究のために、色素増感太陽電池、ペロブスカイト型太陽電池、熱電材料、およびセンサーのためのナノ材料の製造および分析が行われています。


Current Research Topics:

  • Self-assembly of organic molecules on inorganic surface and its interface structure.

  • 3D atom imaging by photoelectron holography and X-ray fluorescent holography.
  • Theoretical calculation of electronic structures for Nanomaterials.
  • Structural engineering, controlled growth and fabrication of TiO2 films for DSSCs, perovskite solar cells and gas sensing applications.

  • Research on graphene-based quantum dots for bio-imaging.
  • Interface Engineering of nanostructures and controlled layered MoS2 growth (CVD) for
    thermoelectric energy conversion.


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