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Chief Scientist Laboratories Surface and Interface Science Laboratory

Chief Scientist: Yousoo Kim (D.Eng.)

Research Summary

Yousoo Kim(D.Eng.)

Our research focuses on describing details of the energy transport and conversion at the solid surfaces and interfaces in the nanoscale regime. In order to understand their basic mechanism at a single molecule/atom level, we carry out combined study of density functional theory calculation and scanning probe microscopy/spectroscopy on the well-defined solid surfaces under ultra-high vacuum condition. Part of our research is directed toward investigation of single-molecule chemistry on various solid surfaces. Another important part of our research focuses on self-assembled organic thin films aiming at understanding their microscopic structure and controlling their electronic properties. In addition, we also investigate energy conversion between electrons and photons of the nanometer scale materials.

Main Research Fields

  • Chemistry

Related Research Fields

  • Interdisciplinary Science & Engineering
  • Engineering
  • Surface science
  • Physical chemistry
  • Condensed matter physics

Keywords

  • Surface
  • Interface
  • Scanning probe microscope
  • Single-molecule spectroscopy
  • nanotechnology

Selected Publications

  • 1. Q. Weng, W. Deng, S. Komiyama, T. Sasaki, H. Imada, W. Lu, I. Hosako, and Y. Kim
    "Nanoscale thermal imaging of hot electrons by cryogenic terahertz scanning noise microscopy"
    Rev. Sci. Instrum. 95 (2024) 063705, 1-8.
  • 2. R. Wong, Y. Yokota, and Y. Kim
    "Bridging electrochemistry and ultrahigh vacuum: “unburying" the electrode-electrolyte interface"
    Acc. Chem. Res. 56 (2023) 2015-2025.
  • 3. S. Yamamoto, H. Imada, and Y. Kim
    "Atomic-scale photon mapping revealing spin-current relaxation"
    Phys. Rev. Lett. 128 (2022) 206804, 1-5.
  • 4. M. Imai-Imada, H. Imada, K. Miwa, Y. Tanaka, K. Kimura, I. Zoh, R. B. Jaculbia, H. Yoshino, A. Muranaka, M. Uchiyama, and Y. Kim
    "Orbital-resolved visualization of single-molecule photocurrent channels"
    Nature 603 (2022) 829-834.
  • 5. H. Imada, M. Imai-Imada, K. Miwa, H. Yamane, T. Iwasa, Y. Tanaka, N. Toriumi, K. Kimura, N. Yokoshi, A. Muranaka, M. Uchiyama, T. Taketsugu, Y. K. Kato, H. Ishihara, and Y. Kim
    "Single-molecule laser nanospectroscopy with micro-electron volt energy resolution"
    Science 373 (2021) 95-98.
  • 6. K. Kimura, Y. Morinaga, H. Imada, I. Katayama, K. Asakawa, K. Yoshioka, Y. Kim, and J Takeda
    "Terahertz-field-driven scanning tunneling luminescence spectroscopy"
    ACS Photonics 8 (2021) 982-987.
  • 7. R. B. Jaculbia, H. Imada, K. Miwa, T. Iwasa, M. Takenaka, B. Yang, E. Kazuma, N. Hayazawa, T. Taketsugu, and Y. Kim
    "Single-molecule resonance Raman effect in a plasmonic nanocavity"
    Nat. Nanotechnol. 15 (2020) 105-110.
  • 8. K. Kimura, K. Miwa, H. Imada, M. Imai-Imada, S. Kawahara, J. Takeya, M. Kawai, M. Galperin, and Y. Kim
    "Selective triplet exciton formation in a single molecule"
    Nature 570 (2019) 210-213.
  • 9. E. Kazuma, J. Jung, H. Ueba, M. Trenary, and Y. Kim
    "Real-space and real-time observation of a plasmon-induced chemical reaction of a single molecule"
    Science 360 (2018) 521-526.
  • 10. H. Imada, K. Miwa, M. Imai-Imada, S. Kawahara, K. Kimura, and Y. Kim
    "Real-space investigation of energy transfer in heterogeneous molecular dimers"
    Nature 538 (2016) 364-367.

Recent Research Results

Annual research report

Related Links

Lab Members

Principal investigator

Yousoo Kim
Chief Scientist

Core members

Norihiko Hayazawa
Senior Research Scientist
Yasuyuki Yokota
Senior Research Scientist
Tohru Takarada
Senior Research Scientist
Masae Horinouchi
Senior Research Scientist
Reizo Kato
Research Scientist
Kensuke Kimura
Research Scientist
Miyabi Imai
Special Postdoctoral Researcher
Maki Inagaki
Special Postdoctoral Researcher
Keita Tanaka
Special Postdoctoral Researcher
Yuzu Kobayashi
Postdoctoral Researcher
Shoma Tateda
RIKEN Student Researcher M
Yoshiko Shimizu
Technical Staff II
Chikako Kuramochi
Assistant
Yuki Hasegawa
Research Part-time Worker I
Yumi Kuramitsu
Administrative Part-time Worker I

Contact Information

S304 Chemistry and Materials Physics Building,
2-1 Hirosawa,
Wako, Saitama
351-0198, Japan
Tel: +81-(0)48-467-4073
Fax: +81-(0)48-467-1945
Email: ykim@riken.jp

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