Improvement on performance of nanoscale potential distribution measurement in liquid by AFM

• Project/Area Number: 17H02734
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nanomaterials chemistry
• Research Institution: Saitama University
• Principal Investigator: Kobayashi Naritaka 埼玉大学, 理工学研究科, 助教 (40595998)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000); Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2018: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2017: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
• Keywords: 原子間力顕微鏡 / 表面電位 / 固液界面 / AFM / 電位分布 / ナノ計測 / 電位計測 / ケルビンプローブフォース顕微鏡 / 液中電位分布計測

Outline of Final Research Achievements

Open-loop electric potential microscopy (OL-EPM) is a powerful atomic force microscope (AFM) technique that can measure surface structure and surface potential simultaneously in liquids. To improve its performance of quantitative potential measurement, we have examined methods to detect an electrostatic interaction force acting only on a tip apex. We established a procedure to make a conductive cantilever of which surface is coated with insulating except for tip apex and demonstrated its effectiveness from modulation frequency response and tip-sample distance dependences of electrostatic interaction force. We also investigated heterodyne method and demonstrated the possibility to detect an electrostatic force acting on the tip apex dominantly.

Academic Significance and Societal Importance of the Research Achievements

OL-EPMは表面の電位分布を液中で測定できる唯一の技術である。本研究の成果をもとに、OL-EPMがさらなる進化を遂げることができれば、電気化学反応に関わる諸現象の理解は飛躍的に進むと期待される。さらに、OL-EPMは、金属材料、電池、化粧品など、多岐にわたる分野において産業の発展に大きく貢献できる共通基盤技術になると期待される。

Research Products

• [Journal Article] Simultaneous atomic-resolution flexural and torsional imaging in liquid by frequency modulation atomic force microscopy (2020)
  • Author(s): Umemoto Megumi、Kawamura Ryuzo、Yoshikawa Hiroshi Y.、Nakabayashi Seiichiro、Kobayashi Naritaka
  • Journal Title: Japanese Journal of Applied Physics Volume: 59 Issue: SI Pages: SIII01-SIII01
  • DOI: 10.35848/1347-4065/ab7479
  • Peer Reviewed
• [Journal Article] Hydrogen Nanobubbles at Roughness Regulated Surfaces; Why Does the Normal Hydrogen Electrode Need a Platinized-Platinum Electrode? (2019)
  • Author(s): Kentaro Kashiwagi, Tamon Hattori, Yudai Samejima, Naritaka Kobayashi, Seiichiro Nakabayashi
  • Journal Title: Journal of Physical Chemistry C Volume: 123 Issue: 12 Pages: 7416-7424
  • DOI: 10.1021/acs.jpcc.8b11648
  • Peer Reviewed
• [Journal Article] Atomic-Scale Imaging of Surface and Hydration Structures of Stable and Metastable Acetaminophen Crystals by Frequency Modulation Atomic Force Microscopy (2018)
  • Author(s): Kobayashi Naritaka、Maruyama Mihoko、Mori Yoichiro、Fukukita Suguru、Adachi Hiroaki、Takano Kazufumi、Murakami Satoshi、Matsumura Hiroyoshi、Inoue Tsuyoshi、Yoshimura Masashi、Nakabayashi Seiichiro、Mori Yusuke、Yoshikawa Hiroshi Y.
  • Journal Title: The Journal of Physical Chemistry C Volume: 122 Issue: 38 Pages: 21983-21990
  • DOI: 10.1021/acs.jpcc.8b06928
  • Peer Reviewed
• [Journal Article] Electron Transfer Kinetics of Methylviologen Included in 4-Sulfonatocalix[n]arenes at Glassy Carbon Electrode; Adiabaticity and Activation Energy (2018)
  • Author(s): Yuki Takahashi, Takashi Fujihara, Naritaka Kobayashi, Seiichiro Nakabayashi, Zsombor Miskolczy, Laszlo Biczok
  • Journal Title: Chemical Physics Letters Volume: 708 Pages: 222-227
  • DOI: 10.1016/j.cplett.2018.08.005
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Self-Assembly of Anionic Pyrene Derivatives with Cationic Surfactants Bearing a Tetradecyl Chain (2018)
  • Author(s): Zsombor Miskolczy, Yuki Takahashi, Naritaka Kobayashi, Seiichiro Nakabayashi, Alexandre Loukanov, Laszlo Biczok
  • Journal Title: Colloids and Surface A Volume: 552 Pages: 161-168
  • DOI: 10.1016/j.colsurfa.2018.05.018
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Structural change of nonionic surfactant self-assembling at electrochemically controlled HOPG/electrolyte interface (2017)
  • Author(s): Kobayashi Naritaka、Saitoh Hirokazu、Kawamura Ryuzo、Yoshikawa Hiroshi Y.、Nakabayashi Seiichiro
  • Journal Title: Journal of Electroanalytical Chemistry Volume: 799 Pages: 444-450
  • DOI: 10.1016/j.jelechem.2017.06.046
  • Peer Reviewed
• [Presentation] 周波数変調原子間力顕微鏡による有機非線形光学結晶の水和構造計測 (2019)
  • Author(s): 小林成貴，吉村瞭，高橋秀実，丸山美帆子，中嶋誠，岡田修司，吉村政志，森勇介，中林誠一郎，吉川洋史
  • Organizer: 第48回結晶成長国内会議
• [Presentation] AFMによるα-グリシン結晶の水和構造の結晶面間比較 (2019)
  • Author(s): 梅本愛美，川村隆三，吉川洋史，中林誠一郎，小林成貴
  • Organizer: 第48回結晶成長国内会議
• [Presentation] 周波数変調原子間力顕微鏡（FM-AFM）による酸化物半導体ー電解液界面の原子スケール構造解析 (2019)
  • Author(s): 鮫島悠大，吉川洋史，小林成貴，中林誠一郎
  • Organizer: 第9回CJS化学フェスタ
• [Presentation] Simultaneous Atomic-Resolution Flexural and Torsional Imaging in Liquid by Frequency Modulation Atomic Force Microscopy (2019)
  • Author(s): Megumi Umemoto, Ryuzo Kawamura, Hiroshi Y. Yoshikawa, Seiichiro Nakabayashi and Naritaka Kobayashi
  • Organizer: 32nd International Microprocesses and Nanotechnology Conference
  • Int'l Joint Research
• [Presentation] Atomic-scale Imaging of Hydrated Water Molecules at a Solid-Liquid Interface by Atomic Force Microscopy (2019)
  • Author(s): Naritaka Kobayashi
  • Organizer: International Conference “MODERN TRENDS IN PHYSICS” 2019
  • Int'l Joint Research / Invited
• [Presentation] 表面粗さが白金電極上の水素ナノバブルに与える影響 (2019)
  • Author(s): 鮫島悠大，柏木顕太朗，服部多聞，吉川洋史，川村隆三，小林成貴，中林誠一郎
  • Organizer: 日本化学会第99春季年会
• [Presentation] 薬剤有機分子結晶表面に形成される水和構造の多形間比較 (2018)
  • Author(s): 小林成貴，丸山美帆子，森陽一郎，福喜多俊，安達宏昭，高野和文，村上聡，松村浩由，井上豪，吉村政志，中林誠一郎，森勇介，吉川洋史
  • Organizer: 第47回結晶成長国内会議
• [Presentation] 周波数変調AFMによる有機結晶多形の原子スケール水和構造計測 (2018)
  • Author(s): 梅本愛美，川村隆三，吉川洋史，中林誠一郎，小林成貴
  • Organizer: 第47回結晶成長国内会議
• [Presentation] 周波数変調AFMによる有機結晶多形の原子スケール水和構造計測 (2018)
  • Author(s): 梅本愛美，川村隆三，吉川洋史，中林誠一郎，小林成貴
  • Organizer: 第8回CSJ化学フェスタ