Detection of ultrafast reaction dynamics of single molecule

• Project/Area Number: 15H03769
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Physical chemistry
• Research Institution: Kyoto University
• Principal Investigator: Watanabe Kazuya 京都大学, 理学研究科, 准教授 (30300718)
• Co-Investigator(Kenkyū-buntansha): 奥山 弘 京都大学, 理学研究科, 准教授 (60312253)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000); Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2015: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
• Keywords: 時間分解分光 / 走査トンネル顕微鏡 / プラズモン / 単一分子分光 / 表面プラズモン / 表面・界面物性 / 走査プローブ顕微鏡 / 光物性 / トンネル顕微鏡 / 超高速分光 / 超高真空 / 表面分光 / グラフェン

Outline of Final Research Achievements

In this project, we aimed to develop an experimental technique that enables us to detect vibrational excitation and relaxation dynamics of surface reaction coordinate with characterizing adsorbate adsorption states. We have constructed a ultra-low temperature scanning tunneling microscopy with a laser irradiation system onto the scanning tip. We successfully observed the flip motion of hydroxyl radicals induced by femtosecond laser irradiation. We further investigated plasmonic response of a single atomic layer of alkali atoms and found that the response is largely enhanced by interaction with two-dimensional materials.

Research Products

• [Presentation] Cs原子がインターカレートされたIr(111)上のグラフェンの超高速光学応答 (2017)
  • Author(s): 田中駿介、渡邊一也、杉本敏樹、松本吉泰
  • Organizer: 平成２９年度日本分光学会年次講演会
• [Presentation] H2O結晶氷Ih(0001)表面のヘテロダイン検出和周波発生振動分光 (2017)
  • Author(s): 大槻友志、杉本敏樹、相賀則宏、渡邊一也、松本吉泰
  • Organizer: 平成29年度日本分光学会年次講演会
• [Presentation] Ultrafast optical response of alkali-intercalated graphene on Ir(111) (2017)
  • Author(s): Kazuya Watanabe, Syunsuke Tanaka, Toshiki Sugimoto and Yoshiyasu Matsumoto
  • Organizer: 33rd symposium on Chemical Kinetics and Dynamics
  • Int'l Joint Research
• [Presentation] Non-equilibrium adsorbate dynamics induced by electronic friction (2017)
  • Author(s): Kazuya Watanabe
  • Organizer: 10th international Synposium on Ultrafast Surface Dynamics
  • Int'l Joint Research / Invited
• [Presentation] Non-equilibrium adsorbate dynamics on Metal Surface induced by electronic friction (2017)
  • Author(s): Kazuya Watanabe
  • Organizer: 21th East Asian Workshop on Chemical Dynamics
  • Int'l Joint Research / Invited
• [Presentation] Ultrafast Vibrational Dynamics of Surface Adsorbates Studied by Time-resolved Optical Spectroscopy (2017)
  • Author(s): Kazuya Watanabe
  • Organizer: Gordon Research Conference: Dynamics at Surface
  • Int'l Joint Research / Invited
• [Presentation] Exciton dynamics in organic amorphous thin film studied by fluorescence transient hole-burning spectroscopy (2017)
  • Author(s): Kazuto Yamada, Kazuya Watanabe, Toshiki Sugimoto and Yoshiyasu Matsumoto
  • Organizer: 第98回日本化学会春季年会
• [Presentation] 非晶質テトラフェニルジベンゾペリフランテン薄膜中の励起状態緩和ダイナミクスの温度依存性 (2017)
  • Author(s): 山田一斗、渡邊一也、杉本敏樹、松本吉泰
  • Organizer: 第１１回分子科学討論会2017
• [Presentation] Ultrafast dynamics of alkali-intercalated graphene (2016)
  • Author(s): Kazuya Watanabe, Shunsuke Tanaka, Toshiki Sugimoto, Yoshiyasu Matsumoto, Mairn Petrovic, Marko Kralj, and Predrag Lazc
  • Organizer: 9th asian photochemistry conference
  • Place of Presentation: Singapore, Nanyang Technological University
  • Year and Date: 2016-12-04
  • Int'l Joint Research / Invited
• [Presentation] アルカリ原子インターカレーションによるグラフェンプラズモン励起機構 (2016)
  • Author(s): 田中 駿介、渡邊 一也, Marin Petrovic、Marko Kralj、Predrag Lazic、杉本 敏樹、松本 吉泰
  • Organizer: 分子科学討論会2016
  • Place of Presentation: 神戸ファッションマート
  • Year and Date: 2016-09-13
• [Presentation] Plasmon excitation at alkali-intercalated graphene on Ir(111) (2016)
  • Author(s): S. Tanaka, K. Watanabe, M. Petrovic, M. Kralj, P. Lazic, T. Sugimoto, Y. Matsumoto
  • Organizer: 20 th international vacuum congress
  • Place of Presentation: Busan, Korea
  • Year and Date: 2016-08-21
  • Int'l Joint Research
• [Presentation] COHERENT PHONON DYNAMICS AT GRAPHENE/ALKALI ATOMS/Ir(111) SURFACES (2016)
  • Author(s): S. Tanaka, K. Watanabe, M. Petrovic, M. Kralj, P. Lazic, T. Sugimoto, Y. Matsumoto
  • Organizer: 26th IUPAC International Symposium on Photochemistry
  • Place of Presentation: Osaka city central public hall
  • Year and Date: 2016-04-03
  • Int'l Joint Research
• [Presentation] Optical response of alkali-intercalated graphene (2016)
  • Author(s): Kazuya Watanabe
  • Organizer: 9th asian conference on ultrafast phenomena
  • Place of Presentation: University of the Philippines Diliman, Philippines
  • Year and Date: 2016-02-22
  • Int'l Joint Research / Invited
• [Presentation] Coherent phonons at Cs intercalated graphene on Ir(111) (2015)
  • Author(s): Kazuya Watanabe, Toshiki Sugimoto, Yoshiyasu Matsumoto, Marin Petrovic, Predrag Lazic and Marko Kralj
  • Organizer: The International Chemical Congress of Pacific Basin Societies (Pacifichem2015)
  • Place of Presentation: Honolulu, Hawai, USA
  • Year and Date: 2015-12-15
  • Int'l Joint Research