2025-present

• Ryo Ueno, Kenta Motobayashi, *Katsuyoshi Ikeda
  Physical Chemistry Chemical Physics, 27, 13352-13359 (2025). DOI: 10.1039/D5CP01606A
  "Stractures and terahertz dynamics of an imidazolium-based ionic liquid on a gold electrode studied using surface-enhanced Raman scattering"

2020-2024

• Ryuto Kamimura, Shoichi Maeda, Tomohiro Hayashi, Kenta Motobayashi, *Katsuyoshi Ikeda
  Journal of the American Chemical Society, 146, 22327-22334 (2024). DOI: 10.1021/jacs.4c04901
  "Why is Surface-enhanced Raman Scattering Insensitive to Liquid Water?"
• *Kenta Motobayashi, Hayato Nakagawa, Yuhei Shibamura, Katsuyoshi Ikeda
  The Journal of Physical Chemistry C, 128, 819-826 (2024). DOI: 10.1021/acs.jpcc.3c07750
  "Origin of Temperature-dependent Overpotential of Co Electrodeposition in an Ionic Liquid"
  Selected for Supplementary Cover
• *Katsuyoshi Ikeda
  Current Opinion in Electrochemistry, 41, 101355 (2023). DOI: 10.1016/j.coelec.2023.101355
  "Surface mass analysis of heterogeneous reactions using low-frequency surface-enhanced Raman scattering"
  Invited review for a themed issue on Innovative Methods in Electrochemistry
• Taichi Isogai, Masayuki Uranagase, Kenta Motobayashi, Shuji Ogata, *Katsuyoshi Ikeda
  Chemical Science, 14, 6531-6537 (2023). DOI: 10.1039/D3SC01734F
  "Probing collective terahertz vibrations of a hydrogen-bonded water network at buried electrochemical interfaces"
  Selected for Inside Front Cover
• Toshiki Kondo, Motoharu Inagaki, Shohei Tanaka, Shinya Tsukiji, Kenta Motobayashi, *Katsuyoshi Ikeda
  Physical Chemistry Chemical Physics, 25, 14618-14626 (2023). DOI: 10.1039/D3CP00924F
  "Revisit of the Plasmon-Mediated Chemical Transformation of para-Aminothiophenol"
• *Haoming Bao, Kenta Motobayashi, Hongwen Zhang, Weiping Cai, Katsuyoshi Ikeda
  The Journal of Physical Chemistry Letters, 14, 4113-4118 (2023). DOI: 10.1021/acs.jpclett.3c00562
  "In-situ Surface-Enhanced Raman Spectroscopy Reveals a Mars-van Krevelen-Type Gas Sensing Mechanism in Au@SnO₂ Nanoparticle-Based Chemiresistors"
  Selected for Supplementary Cover
• Maria Vanessa Balois-Oguchi, *Norihiko Hayazawa, Satoshi Yasuda, Katsuyoshi Ikeda, Tien Quang Nguyen, Mary Clare Escaño, *Takuo Tanaka
  The Journal of Physical Chemistry C, 127, 5982-5990 (2023). DOI: 10.1021/acs.jpcc.2c08529  
  "Probing strain and Doping along a Graphene Wrinkle using Tip-Enhanced Raman Spectroscopy"
  Invited Article for Special Issue on Hiro-o Hamaguchi Festschrift
• *Haoming Bao, Kenta Motobayashi, Katsuyoshi Ikeda
  Analytical Chemistry, 94, 17169-17176 (2022). DOI: 10.1021/acs.analchem.2c03631
  "Engineered Au@CuO Nanoparticles for Wide-Range Quantitation of Sulfur Ions by Surface-Enhanced Raman Spectroscopy"
• *Kenta Motobayashi, Yoshiki Maeno, Katsuyoshi Ikeda
  The Journal of Physical Chemistry C, 126, 11981-11986 (2022). DOI: 10.1021/acs.jpcc.2c03012 
  "In Situ Spectroscopic Characterization of an Intermediate of CO2 Electroreduction on a Au electrode in Room-Temperature Ionic Liquids"
  Selected for Supplementary Cover
• Toshiki Kondo, Motoharu Inagaki, Kenta Motobayashi, *Katsuyoshi Ikeda
  Catalysis Science & Technology, 12, 2670-2676 (2022). DOI: 10.1039/D2CY00229A
  "In situ mass analysis of surface reactions using surface-enhanced Raman spectroscopy covering a wide range of frequencies"
  Invited Article for the special collection: In situ and operando spectroscopy in catalysis
• Katsuyoshi Ikeda
  "Analysis of electrode/electrolyte interfaces" in "Handbook of Raman spectroscopic data analysis (Japanese)", Technical Information Institute Co., Ltd, Chapter 6-3, pp. 180-187 (2022) ISBN:  978-4-86104-872-2
• Ryuto Kamimura, Toshiki Kondo, Kenta Motobayashi, *Katsuyoshi Ikeda
  Physica Status Solidi B: Basic Solid State Physics, 259, 2100589 (2022). DOI: 10.1002/pssb.202100589
  "Surface-enhanced electronic Raman scattering at various metal surfaces"
  
• Taichi Isogai, Kenta Motobayashi, *Katsuyoshi Ikeda
  The Journal of Chemical Physics, 155, 204702 (2021). DOI: 10.1063/5.0067355 
  "A single spectroscopic probe for in-situ analysis of electronic and vibrational information at both sides of electrode/electrolyte interfaces using surface-enhanced Raman scattering"
  Invited Article for the special topic on The Chemical Physics of the Electrode-Electrolyte Interface.
• *Kenta Motobayashi, Kosuke Matsumoto, Seiji Tsuzuki, Katsuyoshi Ikeda
  Electrochemical Science Advances, 2, e2100150 (2022). DOI: 10.1002/elsa.202100150
  "Competing Characters of Li+-Glyme Complex in a Solvate Ionic Liquid: High Stability in the Bulk and Rapid Desolvation on an Electrode Surface"
  Invited Article for Special Issue on Electrochemistry and Double Layer Structure in Non-Conventional Electrolytes.
• Katsuyoshi Ikeda
  "Surface-enhanced Raman scattering" in The Surface Science Society of Japan Ed. "Compendium of Surface and Interface Analysis (Japanese)", Asakura, Chapter 11.2, pp. 186-191 (2021) ISBN: 978-4-254-20170-3
• Motoharu Inagaki, Kenta Motobayashi, *Katsuyoshi Ikeda
  Nanoscale, 12, 22988-22994 (2020). DOI: 10.1039/D0NR06150F
  "In situ surface-enhanced electronic and vibrational Raman scattering spectroscopy at metal/molecule interfaces"
  Invited Article for the web themed issue on Advances in Plasmonics and Its Applications.
  Selected for Back Cover DOI: 10.1039/D0NR90273J
• *Kenta Motobayashi, Yuhei Shibamura, Katsuyoshi Ikeda
  The Journal of Physical Chemistry Letters, 11, 8697-8702 (2020). DOI: 10.1021/acs.jpclett.0c02605
  "Origin of a High Overpotential of Co Electrodeposition in a Room Temperature Ionic Liquid"
• Motoharu Inagaki, Taichi Isogai, Kenta Motobayashi, Kai-Qiang Lin, Bin Ren, *Katsuyoshi Ikeda
  Chemical Science, 11, 9807-9817 (2020). DOI: 10.1039/D0SC02976A
  "Electronic and Vibrational Surface-enhanced Raman Scattering: from Atomically Defined Au(111) and (100) to Roughened Au"
  Selected for Back Cover DOI: 10.1039/D0SC90207A
• Yudai Kobayashi, Shino Sato, Kohei Uosaki, Kenta Motobayashi, *Katsuyoshi Ikeda
  The Journal of Physical Chemistry C, 124, 18173-18180 (2020). DOI: 10.1021/acs.jpcc.0c06529
  "Atomistic Control of Metal-Molecule Junctions for Efficient Photo-Induced Uphill Charge Transfer"
  Selected for Supplementary Journal Cover
• Soma Ikegaya, Kenta Motobayashi, *Katsuyoshi Ikeda
  Journal of Raman Spectroscopy, 52, 420-430 (2021). DOI: 10.1002/jrs.5925 
  "Long-range surface plasmon enhanced Raman spectroscopy at highly damping platinum electrodes"
  Invited Article for the special issue dedicated to Professor Richard P. Van Duyne
• Tatsuya Toyama, Shino Sato, Kenta Motobayashi, Kohei Uosaki, *Katsuyoshi Ikeda
  Journal of Solid State Electrochemistry, 25, 141-147 (2021). DOI: 10.1007/s10008-019-04461-9
  "A rotating disk electrode study on catalytic activity of iron(II) phthalocyanine-modified electrodes for oxygen reduction in acidic media"
  Invited Article for José H. Zagal Festschrift
• Katsuyoshi Ikeda
  Chemistry & Chemical Industry, 73, 106-108 (2020).
  "SERS spectroscopy in THz frequency region" (in Japanese)

2015-2019

• *Maria Vanessa Balois, *Norihiko Hayazawa, Satoshi Yasuda, Katsuyoshi Ikeda, Bo Yang, Emiko Kazuma, Yasuyuki Yokota, Yousoo Kim, and *Takuo Tanaka
  NPJ 2D Materials and Applications, 3, 38 (2019) DOI: 10.1038/s41699-019-0121-7
  "Visualization of subnanometric local phonon modes in a plasmonic nanocavity via ambient tip-enhanced Raman spectroscopy"
• Motoharu Inagaki, Kenta Motobayashi, *Katsuyoshi Ikeda
  Current Opinion in Electrochemistry, 17, 143-148 (2019) DOI: 10.1016/j.coelec.2019.06.001 
  "Low-frequency surface enhanced Raman scattering spectroscopy at metal electrode surfaces"
  Invited Review
• Satoshi Kaneko, Enrique Montes, Sho Suzuki, Shintaro Fujii, Kazuhito Tsukagoshi, Tomoaki Nishino, Katsuyoshi Ikeda, Hideaki Kano, *Hisao Nakamura, *Hector Vazquez, *Manabu Kiguchi
  Chemical Science, 10, 6261-6269 (2019) DOI: 10.1039/C9SC00701F 
  "Identifying the Molecular Adsorption Site of a Single Molecule Junction Through Combined Raman and Conductance Studies"
  Selected for the inside back cover DOI: 10.1039/C9SC90143D
• Kenta Motobayashi
  Chemistry & Chemical Industry, 72, 106-108 (2019)
  "Interfacial restructuring-driven electrochemical reaction" (in Japanese)
• *Kenta Motobayashi, Yuhei Shibamura, and Katsuyoshi Ikeda
  Electrochemistry Communications, 100, 117-120 (2019) DOI: 10.1016/j.elecom.2019.02.003
  "Potential-induced interfacial restructuring of a pyrrolidinium-based ionic liquid on an Au electrode: Effect of polarization of constituent ions"
• *Toshio Haba, Katsuyoshi Ikeda, Kohei Uosaki
  Electrochemistry Communications, 98, 19-22 (2019) DOI: 10.1016/j.elecom.2018.11.007
  "Electrochemical and in situ SERS study of the role of an inhibiting additive in selective electrodeposition of copper in sulfuric acid"
• Shino Sato, Shigeru Iwase, Kotaro Namba, Tomoya Ono, Kenji Hara, Atsushi Fukuoka, Kohei Uosaki, *Katsuyoshi Ikeda
  ACS Nano, 12, 1228-1235 (2018). DOI: 10.1021/acsnano.7b07223
  "Electrical Matching at Metal/Molecule Contacts for Efficient Heterogeneous Charge Transfer"
• S. Liu, D. Baugh, K. Motobayashi, X. Zhao, S. V. Levchenko, S. Gawinkowski, J. Waluk, L. Grill, M. Persson, and *T. Kumagai
  Physical Chemistry Chemical Physics, 20, 12112-12119 (2018). DOI: 10.1039/C8CP00178B
  "Anharmonicity in a Double Hydrogen Transfer Reaction Studied in a Single Porphycene Molecule on a Cu(110) Surface"
• Katsuyoshi Ikeda
  "Gap-mode Raman Spectroscopy" in The Surface Science Society of Japan Ed. "Compendium of Surface and Interface Analysis", Springer, Chapter 35, pp. 205-209 (2018) ISBN: 9811061556
• Katsuyoshi Ikeda
  "Surface Enhanced Raman Scattering" in The Surface Science Society of Japan Ed. "Compendium of Surface and Interface Analysis", Springer, Chapter 107, pp. 661-665 (2018) ISBN: 9811061556
• Kenta Motobayashi
  "Action Spectroscopy with STM" in The Surface Science Society of Japan Ed. "Compendium of Surface and Interface Analysis", Springer, Chapter 2, pp. 9-13 (2018) ISBN: 9811061556
• *Kenta Motobayashi, and Masatoshi Osawa
  Current Opinion in Electrochemistry, 8, 147-155 (2018) DOI: 10.1016/j.coelec.2018.05.003
  "Recent advances in spectroscopic investigations on ionic liquid/electrode interfaces"
• Katsuyoshi Ikeda
  KOGAKU, 46(12), 495-499 (2017)
  "Plasmon Enhanced Nonlinear Optical Spectroscopy" (in Japanese)
• Fumiya Sugimura, Nanami Sakai, Tetsuya Nakamura, Masashi Nakamura, Katsuyoshi Ikeda, Toshio Sakai, *Nagahiro Hoshi
  Physical Chemistry Chemical Physics, 19, 27570-27579 (2017). DOI: 10.1039/C7CP04277A
  "In-situ observation of Pt oxides on the low index planes of Pt with surface enhanced Raman spectroscopy"
• Motoharu Inagaki, Kenta Motobayashi, *Katsuyoshi Ikeda
  Journal of Physical Chemistry Letters, 8, 4236-4240 (2017). DOI: 10.1021/acs.jpclett.7b01901
  "Electrochemical THz-SERS Observation of Thiol Monolayers on Au(111) and (100) Using Nanoparticle-assisted Gap-Mode Plasmon Excitation"
• *Katsuyoshi Ikeda, Aya Kimura, Kohei Uosaki, 
  Journal of Electroanalytical Chemistry, 800, 151-155 (2017). DOI: 10.1016/j.jelechem.2016.11.046
  "Electrochemical SERS observation of molecular adsorbates on Ru/Pt-modified Au(111) surfaces using sphere-plane type gap-mode plasmon excitation"
• *Kensaku Kodama, Kenta Motobayashi, Akihiro Shinohara, Naoki Hasegawa, Kenji Kudo, Ryosuke Jinnouchi, Masatoshi Osawa, Yu Morimoto
  ACS Catalysis, 8, 694-700 (2017). DOI: 10.1021/acscatal.7b03571
  "Effect of the Side-Chain Structure of Perfluoro-Sulfonic Acid Ionomers on the Oxygen Reduction Reaction on the Surface of Pt"
• Kenta Motobayashi, Naoya Nishi, Yuki Inoue, Kazuya Minami, Tetsuo Sakka, and Masatoshi Osawa
  Journal of Electroanalytical Chemistry, 800, 126-133 (2017).
  "Potential-Induced Restructuring Dynamics of Ionic Liquids on a Gold Electrode: Steric Effect of Constituent Ions Studied by Surface-Enhanced Infrared Absorption Spectroscopy"
• Naoya Nishi, Kazuya Minami, Kenta Motobayashi, Masatoshi Osawa, and Tetsuo Sakka
  Journal of Physical Chemistry C, 121 (2017) 1658-1666
  "Interfacial Structure at the Quaternary Ammonium-Based Ionic Liquids|Gold Electrode Interface Probed by Surface Enhanced Infrared Absorption Spectroscopy: Anion Dependence of the Cationic Behavior"
• Katsuyoshi Ikeda
  "Plasmon enhanced Raman scattering from molecular adsorbates on atomically defined planar metal surfaces" in Y. Ozaki, G. C. Schatz, D. Graham, T. Itho Eds. "Frontiers of Plasmon Enhanced Spectroscopy Volume 2", ACS books (Vol. 1246), American Chemical Society, Chapter 3, pp 41–55 (2016) ISBN: 9780841232037.
• *Katsuyoshi Ikeda, Yuma Takeuchi, Kohei Kanamaru, Shuto Suzuki, Kohei Uosaki, 
  Journal of Physical Chemistry C, 120, 15823-15829 (2016). DOI: 10.1021/acs.jpcc.5b11691
  "Nanostructuring of Molecular Assembly Using Electrochemical Reductive Desorption of Locally Stabilized Thiol Monolayers"
• Satoshi Kaneko, Daigo Murai, Santiago Marqués-González, *Hisao Nakamura, Yuki Komoto, Shintaro Fujii, Tomoaki Nishino, Katsuyoshi Ikeda, *Kazuhito Tsukagoshi, *Manabu Kiguchi
  Journal of the American Chemical Society, 138, 1294-1300 (2016). DOI: 10.1021/jacs.5b11559
  "Site selection in single-molecule junction for highly reproducible molecular electronics"
  Highlighted in Spotlights 138, 703 (2016) DOI: 10.1021/jacs.6b00532
• Shino Sato, Kotaro Namba, Kenji Hara, Atsushi Fukuoka, Kei Murakoshi, Kohei Uosaki, *Katsuyoshi Ikeda
  Journal of Physical Chemistry C, 120, 2159-2165 (2016). DOI: 10.1021/acs.jpcc.5b09364
  "Kinetic Behavior of Catalytic Active Sites Connected with a Conducting Surface Through Various Electronic Coupling"
  Selected for the front cover
• Shino Sato, Kei Murakoshi, *Katsuyoshi Ikeda
  Chemistry Letters, 45, 125-127 (2016). DOI: 10.1246/cl.151001
  "Photoelectrochemical behavior of homo- and hetero-dimers of metalloporphyrins"
• *Kenta Motobayashi, Yousoo Kim, Michiaki Ohara, Hiromu Ueba, Maki Kawai
  Surface Science, 643, 18-22 (2016). DOI: 10.1016/j.susc.2015.08.008
  "The role of thermal excitation in the tunneling-electron-induced reaction: Dissociation of dimethyl disulfide on Cu(111)"
• *Kenta Motobayashi, Masatoshi Osawa
  Electrochemistry Communications, 65, 14-17 (2016). DOI: 10.1016/j.elecom.2016.01.018
  "Potential-dependent condensation of Water at the Interface between ionic liquid [BMIM][TFSA] and an Au electrode"
• Hyo Won Kim, Seiji Takemoto, Emi Minamitani, Tomonari Okada, Takeshi Takami, Kenta Motobayashi, Michael Trenary, Maki Kawai, Nobuhiko Kobayashi, *Yousoo Kim
  Journal of Physical Chemistry C, 120, 345-349 (2016). DOI: 10.1021/acs.jpcc.5b10040
   "Confinement of the Pt(111) Surface State in Graphene Nanoislands"
• Momo Yaguchi, Taro Uchida, Kenta Motobayashi, and Masatoshi Osawa
  Journal of Physical Chemistry Letters, 7 (2016) 3097-3102.
  "Speciation of Adsorbed Phosphate at Gold Electrodes: A Combined Surface-Enhanced Infrared Absorption Spectroscopy and DFT Study"
• Anna Wuttig, Can Liu, Qiling Peng, Momo Yaguchi, Christopher H. Hendon, Kenta Motobayashi, Shen Ye, Masatoshi Osawa, and Yogesh Surendranath
  ACS Central Science, 2 (2016) 522-528
  "Tracking a Common Surface-Bound Intermediate during CO2-to-Fuels Catalysis"
• Anna Wuttig, Momo Yaguchi, Kenta Motobayashi, Masatoshi Osawa, and Yogesh Surendranath
  Proceedings of the National Academy of Sciences, 113 (2016) E4585-E4593
  "Inhibited Proton Transfer Enhances Au-Catalyzed CO2-to-Fuels Selectivity"
• Hyo Won Kim, Seiji Takemoto, Emi Minamitani, Tomonari Okada, Takeshi Takami, Kenta Motobayashi, Michael Trenary, Maki Kawai, Nobuhiko Kobayashi, *Yousoo Kim
  Journal of Physical Chemistry C, 120, 345-349 (2016). DOI: 10.1021/acs.jpcc.5b10040
  "Confinement of the Pt(111) Surface State in Graphene Nanoislands"
• *Kenta Motobayashi, Masatoshi Osawa
  Electrochemistry Communications, 65, 14-17 (2016). DOI: 10.1016/j.elecom.2016.01.018
  "Potential-dependent condensation of Water at the Interface between ionic liquid [BMIM][TFSA] and an Au electrode"
• *Kenta Motobayashi, Yousoo Kim, Michiaki Ohara, Hiromu Ueba, Maki Kawai
  Surface Science, 643, 18-22 (2016). DOI: 10.1016/j.susc.2015.08.008
  "The role of thermal excitation in the tunneling-electron-induced reaction: Dissociation of dimethyl disulfide on Cu(111)"
• Jian Hu, Nagahiro Hoshi, Kohei Uosaki, *Katsuyoshi Ikeda
  Nano Letters, 15, 7982-7986 (2015). DOI: 10.1021/acs.nanolett.5b03093
  "Vibrational Spectroscopic Observation of Atomic-Scale Local Surface Sites Using Site-Selective Signal Enhancement"
• *Katsuyoshi Ikeda, Sari Uchiyama, Mai Takase, Kei Murakoshi
  ACS photonics, 2, 66-72 (2015). DOI: 10.1021/ph500242c
  "Hydrogen-induced tuning of plasmon resonances in palladium-silver layered nanodimer arrays"
• Katsuyoshi Ikeda
  Electrochemistry, Vol. 83(2), 112-115 (2015) DOI: 10.5796/electrochemistry.83.112
  "Plasmon enhanced Raman spectrospopy of molecular adsorbates on well-defined metal surfaces" (in Japanese)
  

2006-2014（@Hokkaido University）

• *Katsuyoshi Ikeda, Norihiro Fujimoto, Kohei Uosaki
  Journal of Physical Chemistry C, 118, 21550-21557 (2014). DOI: 10.1021/jp5036426
  "Nanoscale Optical and Mechanical Manipulation of Molecular Alignment in Metal-Molecule-Metal Structures"
  Selected for the front cover
• Jian Hu, Masahiro Tanabe, Jun Sato, Kohei Uosaki, *Katsuyoshi Ikeda
  Journal of the American Chemical Society, 136, 10299-10307 (2014). DOI: 10.1021/ja502008t
  "Effects of atomic geometry and electronic structure of platinum surfaces on molecular adsorbates studied by Gap-mode SERS"
  Selected for the front cover; Highlighted in Spotlights 136, 10173 (2014) DOI: 10.1021/ja507050z
• *Katsuyoshi Ikeda, Shuto Suzuki, Kohei Uosaki
  Journal of the American Chemical Society, 135, 17387–17392 (2013) DOI: 10.1021/ja407459t
  "Enhancement of SERS background through charge transfer resonances on single crystal gold surfaces of various orientations"
•  Hidehiko Asanuma, Zhifeng Jiang, Katsuyoshi Ikeda, Kohei Uosaki,* Hua-Zhong Yu
  Physical Chemistry Chemical Physics, 15, 15995-16000 (2013) DOI: 10.1039/C3CP52771A
  "Selective Dehybridization of DNA-Au Nanoconjugates Using Laser Irradiation"
•  *Katsuyoshi Ikeda, Mai Takase, Norihiko Hayazawa, Satoshi Kawata, Kei Murakoshi, Kohei Uosaki
  Journal of the American Chemical Society, 135, 11489-11492 (2013) DOI: 10.1021/ja4056596
  "Plasmonically nano-confined light probing invisible phonon modes in defect-free graphene"
•  *Katsuyoshi Ikeda, Shino Sato, Kenji Takahashi, Takuya Masuda, Kei Murakoshi, Kohei Uosaki,
  Electrochimica Acta, 112, 864-868 (2013). DOI:10.1016/j.electacta.2013.02.007
  "Surface optimization of optical antennas for plasmonic enhancement of photoelectrochemical reactions"
• Tatsuya Konishi, *Manabu Kiguchi, Mai Takase, Fumika Nagasawa, Hideki Nabika, Katsuyoshi Ikeda, Kohei Uosaki, Kosei Ueno, Hiroaki Misawa, *Kei Murakoshi
  Journal of the American Chemical Society, 135, 1009-1014 (2013) DOI: 10.1021/ja307821u
  "Single Molecule Dynamics at a Mechanically Controllable Break Junction in Solution at Room Temperature"
  Selected for the front cover; Highlighted in Spotlights 135, 949–950 (2013) DOI: 10.1021/ja400349a
• Mikhail V. Lebedev, Katsuyoshi Ikeda, Hidenori Noguchi, Yusuke Abe, and Kohei Uosaki
  Applied Surface Science, 267, 185-188 (2013) DOI: 10.1016/j.apsusc.2012.09.076
  "Effect of surface treatment with different sulfide solutions on the ultrafast dynamics of photogenerated carriers in GaAs(100)"
• Katsuyoshi Ikeda, Kohei Uosaki
  "Photo-energy conversion in molecular monolayer systems" in S. Yamada Ed. Frontiers in Applications of Plasmonic Nanomaterials, CMC press, Chap. 13, p216-223 (2013). ISBN: 978-4-7813-0693-3 (in Japanese)
• Katsuyoshi Ikeda
  Chemistry and Chemical industry, 66(3), 212-213 (2013)
  "Peak assignments in vibrational interface spectroscopy" (in Japanese)
• *Katsuyoshi Ikeda, Kenji Takahashi, Takuya Masuda, Hiromu Kobori, Masayuki Kanehara, Toshiharu Teranishi, *Kohei Uosaki
  Journal of Physical Chemistry C, 116, 20806-20811 (2012) DOI:10.1021/jp308290v
  "Structural tuning of optical antenna properties for plasmonic enhancement of photocurrent generation on a molecular monolayer system"
•  *Aleksandra Pacula, Katsuyoshi Ikeda, Takuya Masuda, Kohei Uosaki
  Journal of Power Sources, 220, 20-30 (2012) DOI: 10.1016/j.jpowsour.2012.07.077
  "Examination of the electroactive composites containing cobalt nanoclusters and nitrogen-doped nanostructured carbon as electrocatalysts for oxygen reduction reaction"
•  *Katsuyoshi Ikeda, Kohei Uosaki
  Chemistry – A European Journal, 18, 1564-1570 (2012) DOI:10.1002/chem.201102013
  "Optical antenna for photo-functional molecular system" (Invited Concepts article)
• Katsuyoshi Ikeda, Kohei Uosaki,
  "Nonlinear Raman scattering spectroscopy for carbon nanomaterials" in C. Kumar Ed. "Raman Spectroscopy for Nanomaterials Characterization" (Characterization Tools for Nanoscience & Nanotechnology, Vol.1), Springer-verlarg Berlin Heidelberg, p.99-118 (2012). ISBN 978-3-642-20619-1
• Katsuyoshi Ikeda
  Electrochemistry, 79(10) 768-772 (2011). DOI:10.5796/electrochemistry.79.768
  "Spectroscopy and photoelectrochemistry of organic monolayers within sphere-plane gold nano-gaps"
• *Katsuyoshi Ikeda, Shuto Suzuki, *Kohei Uosaki
  Nano Letters 11, 1716-1722 (2011)DOI:10.1021/nl200251a
  "Crystal face dependent chemical effects in surface enhanced Raman scattering at atomically defined gold facets"
• *Katsuyoshi Ikeda, Jun Sato, *Kohei Uosaki
  Journal of Photochemistry and Photobiology A: Chemistry 221, 175-180 (2011) DOI:10.1016/j.jphotochem.2011.02.022
  "Surface-enhanced Raman scattering at well-defined single crystalline faces of platinum-group metals induced by gap-mode plasmon excitation"
• *Katsuyoshi Ikeda, Kenji Takahashi, Takuya Masuda, *Kohei Uosaki
  Angewandte Chemie International Edition 50, 1280-1284 (2011) DOI: 10.1002/anie.201005271
  "Plasmonic Enhancement of Photoinduced Uphill Electron Transfer in a Molecular Monolayer System"
  Selected for frontispiece in the journal
• Katsuyoshi Ikeda
  Kagaku-kogyo, 62(5), 1-6 (2011)
  "Plasmonic photochemistry at well-defined interfaces" (in Japanese)
• Katsuyoshi Ikeda
  Molecular Science, 5, A0040 (2011) Award account
  "Plasmon-Assisted Spectroscopy and Photochemistry at Well-Defined Metal-molecular Interfaces" (in Japanese)
• Mikio Ito, Hidenori Noguchi, Katsuyoshi Ikeda, *Kohei Uosaki
  Phys. Chem. Chem. Phys. 12, 3156 - 3163 (2010). DOI:10.1039/b920411c / Virtual Journal of Nanoscale Science & Technology 21(13) (2010).
  "Substrate Dependent Structure of Adsorbed Aryl Isocyanides Studied by Sum Frequency Generation (SFG) Spectroscopy"
• Faridah Sonsudin, Takuya Masuda, Katsuyoshi Ikeda, Hideo Naohara, *Kohei Uosaki
  Chemistry Letters, 39, 286 (2010) DOI: 10.1246/cl.2010.286
  "Effect of Coating by Perfluorosulfonated Ionomer Film on Electrochemical Behaviors of Pt(111) Electrode in Acidic Solutions"
• Ulrich Jung, Mathias Müller, Norihiro Fujimoto, *Katsuyoshi Ikeda, Kohei Uosaki, Ursula Cornelissen, Tuczek Felix, Claudia Bornholdt, Dordaneh Zargarani, *Rainer Herges, and *Olaf Magnussen
  Journal of Colloid and Interface Science, 341, 366-375 (2010) DOI: 10.1016/j.jcis.2009.09.040
  "Gap-Mode SERS Studies of Azobenzene-Containing Self-Assembled Monolayers on Au(111)"
• Katsuyoshi Ikeda
  Chemistry and Chemical engineering, 63(6), 488 (2010)
  "Plasmonic photochemistry at well-defined metal-molecule interfaces" (in Japanese)
•  Katsuyoshi Ikeda, Kohei Uosaki
  Photochemistry, 41(1), 10-14 (2010)
  "Enhanced Raman spectroscopy at single crystalline metal surfaces" (in Japanese)
• *Katsuyoshi Ikeda, Jun Sato, Norihiro Fujimoto, Norihiko Hayazawa, Satoshi Kawata, *Kohei Uosaki
  Journal of Physical Chemistry C, 113, 11816–11821 (2009) DOI: 10.1021/jp901858t
  "Plasmonic Enhancement of Raman Scattering on Non-SERS-Active Platinum Substrates"
•  *Katsuyoshi Ikeda, Kohei Uosaki
  Nano Letters 9(4), 1378-1381 (2009) DOI: 10.1021/nl803027c
  "Coherent Phonon Dynamics in Single-Walled Carbon Nanotubes Studied by Time-Frequency Two-Dimensional Coherent Anti-Stokes Raman Scattering Spectroscopy"
  Selected for highlighting in Nature Asia Materials as the best research published in the field of materials science by researchers in the Asia-Pacific region. DOI: 10.1038/asiamat.2009.227
• Hidenori Noguchi, Katsuyoshi Ikeda, Kohei Uosaki
  "Real-Time Monitoring of Molecular Structure at Solid/Liquid Interfaces by Non-linear Spectroscopy" in Fukumura et al. Eds. "Molecular Nano Dynamics", Wiley-VCH, Germany, Chap. 5, p.71-102 (2009). ISBN: 978-3-527-32017-2
• Norihiko Hayazawa, Taro Ichimura, Katsuyoshi Ikeda, Satoshi Kawata
  "Biomolecular imaging by near-field nonlinear spectroscopy and microscopy" in Vladislav Yakovlev Ed. "Biochemical applications of nonlinear optical spectroscopy (Optical Science and Engineering)", CRC Press, FL, Chap. 10, p.239-271 (2009). ISBN: 978-1420068597
• *Katsuyoshi Ikeda, Norihiro Fujimoto, Hiromitsu Uehara, *Kohei Uosaki
  Chemical Physics Letters 460, 205-208 (2008) DOI: 10.1016/j.cplett.2008.05.093
  "Raman scattering of aryl isocyanide monolayers on atomically flat Au(1 1 1) single crystal surfaces enhanced by gap-mode plasmon excitation"
• *Katsuyoshi Ikeda, Kohei Uosaki,
  Journal of Physical Chemistry A 112, 790-793 (2008) DOI: 10.1021/jp710147g
  "Resonance hyper-Raman scattering of fullerene C60 microcrystals"
• *Norihiko Hayazawa, Hidekazu Ishitobi, Atsushi Taguchi, Alvarado Tarun, Katsuyoshi Ikeda, and Satoshi Kawata
  Japanese Journal of Applied Physics 46, 7995-7999 (2007). DOI: 10.1143/JJAP.46.7995
  "Focused excitation of surface plasmon polaritons based on gap-mode in tip-enhanced spectroscopy"
• *Katsuyoshi Ikeda, Mai Takase, Yoshitaka Sawai, Hideki Nabika, Kei Murakoshi, and Kohei Uosaki
  Journal of Chemical Physics 127, 111103 (2007) DOI: 10.1063/1.2786982 / Virtual Journal of Nanoscale Science & Technology 16(14) (2007).
  "Hyper-Raman scattering enhanced by anisotropic dimer-plasmons on artificial nanostructures"
• *Katsuyoshi Ikeda, Yuika Saito, Norihiko Hayazawa, Satoshi Kawata, and Kohei Uosaki
  Chemical Physics Letters 438, 109-112 (2007) DOI: 10.1016/j.cplett.2007.02.050
  "Resonant hyper-Raman scattering from carbon nanotubes" 
• *Katsuyoshi Ikeda, Weitao Liu, Yuen Ron Shen, Hidehiro Uekusa, Yuji Ohashi, and Shin-ya Koshihara
  Chemical Physics Letters 422, 267-270 (2006) DOI: 10.1016/j.cplett.2006.02.090
  "Study of chirality and photo-induced chirality in cobaloxime complex crystals"

2020-present

• Katsuyoshi Ikeda
  "Simultaneous analysis of electronic charge and chemical species at electrochemical interfaces using surface-enhanced Raman scattering"
  12th Singapore International Chemistry Conference (SICC12) 2024.12.9 (Singapre)  Invited talk
• Katsuyoshi Ikeda
  "Influence of Hydrogen Bond Networks on Hydrogen Evolution Reaction in Aqueous Systems"
  PRiME2024 2024.10.8 (Hawaii)  Invited talk
• Katsuyoshi Ikeda
  "Dynamics and structures of hydrogen-bonds of interfacial liquid water studied using surface-enhanced Raman scattering"
  SPIE Optics and Photonics 2024.8.18 (San Diego)  Invited talk
• Katsuyoshi Ikeda
  "Surface-enhanced Raman scattering by electrons and vibrations at electrochemical interfaces"
  9th Taiwan International Symposium on Raman Spectroscopy (TISRS) 2024.7.11 (Taipei) Plenary talk
• Katsuyoshi Ikeda
  "Structure and dynamics of electrified interface probed using surface-enhanced spectroscopy"
  9th Morino discussion 2022.8.31 (online) Invited talk (in Japanese)
• Katsuyoshi Ikeda
  "Surface-enhanced Raman spectroscopy at electrified interfaces: electronic SERS and low-frequency vibrational SERS"
  Enhanced Spectroscopies and Nanoimaging 2022 at the SPIE Optics + Photonics meeting 2022.8.22 (San Diego) Invited talk
• Katsuyoshi Ikeda
  "In-situ observation of electrode/electrolyte interfaces using SERS and SEIRAS"
  JSPS 69th Committee Materials Processing and Applications, 74th meeting 2021.7.19 (online) Invited talk (in Japanese)
• Katsuyoshi Ikeda
  "Surface-enhanced Raman spectroscopy at non-plasmonic platinum electrodes using long-range surface plasmon modes"
  JSAP-OSA Joint Symposia, The 81st JSAP Autumn Meeting 2020.9.9 (Online), Invited talk

2015-2019

• Katsuyoshi Ikeda
  Aichi Science & Technology Foundation Seminor 2019.12.16 (Nagoya) Invited talk (in Japanese)
• Katsuyoshi Ikeda
  "Surface enhanced electronic and vibrational Raman scattering at electrode/electrolyte Interfaces"
  The 2nd International Conference on SERS (SERS-2019) 2019.11.9, Suzhou, China, Invited talk
• Katsuyoshi Ikeda
  "Surface Enhanced Electronic and Vibrational Raman Scattering at Electrochemical Interfaces"
  International Conference of Electrified Interfaces (ICEI2019) 2019.11.4, Valdivia, Chile, Invited talk
• Katsuyoshi Ikeda
  "Low-frequency SERS spectroscopy for in-situ and simultaneous observation of both sides of electrochemical interfaces"
  70th ISE annual meeting 2019.8.6, Durban, South Africa, Invited talk
• Katsuyoshi Ikeda
  "Plasmonic enhancement of vibrational, electronic, and excitonic excitations at metal/molecule interfaces"
  Xiamen University Colloquium 2018.11.21, Xiamen, China, Invited talk
• Katsuyoshi Ikeda
  "In-situ ultra-low frequency SERS spectroscopy at electrified interfaces"
  79^th JSAP Autumn Meeting - JSAP-OSA Joint Symposia 2018, 2018.9.18-21, Nagoya, Japan, Invited talk
• Katsuyoshi Ikeda
  "Ultra-Low Frequency SERS Observation of Molecular Adsorbates on Atomically Defined Gold Surfaces under Electrochemical Conditions"
  The 26th International Conference on Raman Spectroscopy (ICORS2018), 2018.8.26-31, Jeju, Korea, Invited talk
• Katsuyoshi Ikeda
  "Characterization and construction of functionalized surfaces using metal nanoparticles"
  2018 Tokai Polymer ScienceSymposium 2018.1.11-12 (Nagoya) Invited talk in Japanese
• Katsuyoshi Ikeda
  "Electrochemical SERS observation of ultra-low frequency vibrations at defined electrode surfaces"
  International Conference on SERS (SERS2017), 2017.12.5-12.9(12.7) Xiamen, China Invited talk
• Kenta Motobayashi
  "Ionic liquid/electrode interfaces"
  57th Molecular Science Summer School for Young Scientists, 2017.8.21-25 (8.23) Okazaki, Invited talk in Japanese
• Katsuyoshi Ikeda
  "Plasmonic Enhancement of Single- and Multi-Electron Transfer Reactions on Modified Electrodes"
  231st ECS Meeting 2017.5.28-6.2 Hilton New Orleans Riverside, New Orleans, LA (USA)  Invited talk
• Kenta Motobayashi
  "In-situ observation of potential-dependent restructuring behavior of ionic liquid/electrode interfaces: A surface-enhanced infrared study"
  97th CSJ annual meeting, 2017.3.16-19 Keio Univ.（Kanagawa） Invited talk
• Kenta Motobayashi
  "Microscopic origin for hysteretic potential dependence of interfacial structure of ionic liquids near metal electrodes"
  EMN Meeting on Ionic Liquids 2016.11.9-13 Chatrium Hotel Riverside Bangkok (Bangkok, Thailand)  Invited talk
• Kenta Motobayashi
  "Interfacial structure of ionic liquids near metal electrodes: Hysteretic potential dependence studied by surface-sensitive spectroscopy"
  International Symposium on Multi-scale Simulation of Condensed-phase Reacting Systems (MSCRS2016) 2016.10.10-13 Nagoya Univ. (Nagoya, Japan) Invited talk
• Katsuyoshi Ikeda
  "Nano-gap structures for surface spectroscopy, energy conversion, and nanofabrication"
  International Conference on Electrified Interfaces (ICEI) 2016 2016.7.3-7.8, Changi Cove (Singapore) Invited talk
• Kenta Motobayashi
  "Interfacial Structure of Ionic Liquids near Metal Electrodes Affected by Potential and Additives: What Can be Learned from SEIRAS?"
  Symposium on New Challenges of the Surface-enhanced Infrared Spectroscopy (SEIRAS) at the Electrode/Solutions Interface 2016.3.17 Hokkaido Univ. (Sapporo, Japan) Invited talk
• Katsuyoshi Ikeda
  "Surface enhanced Raman spectroscopy of molecular adsorbates on atomically defined surface sites"
  Pacifichem2015 2015.12.15-12.20 Hawaii Convention Center, Honolulu, Hawaii (USA)  Invited talk
• Katsuyoshi Ikeda
  "Improvement in Electron Transfer Rate at Metal/Organic Interfaces Using Pd Atomic Layers"
  227th ECS Meeting 5.24-5.28 Hilton Chicago, Chicago, IL (USA) Invited talk
• Katsuyoshi Ikeda
  "Plasmonic spectroscopy and photochemistry on highly damping platinum group metals"
  249th ACS National Meeting 2015. 3.22-3.26 Marriott Denver City Center, Denver, CO (USA) Invited talk
• Katsuyoshi Ikeda
  82th Spring Meeting of Electrochemical Society of Japan, 2015.3.15-17 Yokohama, Invited Talk (in Japanese)
  

2006-2014 (@Hokkaido Univ.）

• Katsuyoshi Ikeda
  "Plasmonic applications of lossy transition metals"
  75th Fall meeting of JSAP, JSAP-OSA joint symposia 2014, Sep.17-20, 2014 Hokkaido University (Sapporo) Invited talk
• Katsuyoshi Ikeda
  "Tunable Optical Antenna Effect of Palladium-Based Dimeric Nanostructures"
  225th ECS Meeting, May 11-16, 2014 Hilton Orlando Bonnet Creek Hotel (Orlando, USA)    Invited talk
• Katsuyoshi Ikeda
  78th SSSJ symposium 2013.10.18 Tokyo, Invited talk (in Japanese)
• Katsuyoshi Ikeda
  “Plasmonic enhancement of photo-current generation on a metal-molecule hybrid system” The 4th International Symposium of Advanced Energy Science -Principle of Zero-Emission Energy-   2013.9.30-10.2 Kyoto, Invited talk
• Katsuyoshi Ikeda
  "Surface enhanced Raman spectroscopy on atomically defined model surfaces"
  7th International Conference on Advanced Vibrational Spectroscopy (ICAVS7) 2013.8.25-30 Plenary lecture
• Katsuyoshi Ikeda, Mai Takase, Kei Murakoshi, Kohei Uosaki
  "Field localization dependence of SERS from defect-free graphenes"
  223th Electrochemical Society (ECS) meeting 2013.5.12 – 16 Sheraton Centre Toronto Hotel (Canada) Invited talk
• Katsuyoshi Ikeda
  "Development of novel spectroscopic method for in-situ characterization of energy conversion processes at solid/liquid interface"
  The 5th GREEN symposium (Tsukuba, 2012.12.17) Award lecture
• Katsuyoshi Ikeda
  "Surface enhanced Raman Spectroscopy at Model Electrocatalytic Surfaces"
  International Symposium and Annual Meeting of Spectroscopical Society of Japan 2012 (TITECH, Tokyo, 2012.11.27) Invited talk
• Katsuyoshi Ikeda
  "Plasmonic spectroscopy and photochemistry at atomically defined metal surfaces"
  7th Asian Photochemistry Conference 2012 (APC2012) (Osaka, 2012. 11.13) APA young award lecture
• Katsuyoshi Ikeda
  "Surface enhanced Raman spectroscopy on atomically defined catalytic model surfaces using metal nano-gap structures"
  International Conference on Emerging Advanced Nanomaterials (ICEAN-2012) Mercure Hotel (Brisbane, Australia, 2012.10.22) Invited talk
• Katsuyoshi Ikeda
  "Spectroscopic and photoelectrochemical applications of optical nanoantennas to a modified electrode"
  12th International Fischer Symposium (IFS) (Lübeck, Germany, 2012.6.4) Invited talk
• Katsuyoshi Ikeda
  BioRaman2017 Wako, 2012.5.18) Invited talk (in Japanese)
• Katsuyoshi Ikeda
  "Gap-mode plasmon enhancement of photocurrent generation at organic monolayer-modified metal electrodes"
  221th ECS Meeting  Sheraton Seattle (Seattle, WA, 2012.5.6)  Invited talk
• Katsuyoshi Ikeda
  "Gap-mode SERS observation at atomically defined catalytic metal surfaces"
  221th ECS Meeting  (Seattle, WA, 2012.5.6)  Invited talk
• Katsuyoshi Ikeda
  2011 Spectroscopical Society of Japan symposium (Sapporo, 2011.10.6) Invited talk (in Japanese)
• Katsuyoshi Ikeda
  5th Annual meeting of Japan Scoeity for Molecular Science1D17 (Sappro, 2011. 9.20-23)　Award lecture  (in Japanese)
• Katsuyoshi Ikeda
  27 Lilac seminor (Otaru, 2011.6.18-19) Invited talk (in Japanese)
• Katsuyoshi Ikeda
  2nd meeting of MEXT project of integrated research on chemical synthesis (Chitose, 2011.5.28-5.28) Invited talk (in Japanese)
• Katsuyoshi Ikeda
  "Plasmonic enhancement of photo-energy conversion in organic monolayer system"
  219th ECS Meeting Montreal Convention Center (Montreal, Canada, 2011.5.1-5.6) Invited talk
• Katsuyoshi Ikeda　
  3rd symposium Spectroscopical Society of Japan (Tsukuba, 2010.12.3) Invited talk (in Japanese)
• Katsuyoshi Ikeda
  "Gap-mode plasmon enhanced Raman scattering at atomically smooth surfaces of gold and platinum single crystals"
  Symposium on Advanced Spectroscopy: The Spectroscopical Society of Japan (Hokkaido Chapter) (Hokkaido Univ. 2010.10.8) Invited Talk
• Katsuyoshi Ikeda
  "Gap-mode plasmon enhanced photo-energy conversion at well-defined metal-molecular interfaces"
  International Conference on Electrified Interfaces (ICEI2010) (Geneva, NY, 2010.6.25) Invited talk
• Katsuyoshi Ikeda 
  IMS symposium (Okazaki 2010.6.18) Invited talk (in Japanese)
• Katsuyoshi Ikeda
  "Plasmon-assisted photo-energy conversion in organic monolayer system"
  217th Electrochemical Society Meeting (ECS) Hyatt Regency Vancouver (Vancouver, Canada, 2010.4.27) Invited talk
• Katsuyoshi Ikeda
  90th Spring meeting of Chemical Society of Japan 3C5-09　(Ssaka 2010.3.28) Award lecture for young scientists (in Japanese)
• Katsuyoshi Ikeda
  29th SSSJ meeting (Tokyo 2009.10.27-29) Invited talk (in Japanese)
• Katsuyoshi Ikeda
  "Gap-mode plasmon resonances at single crystalline metal surfaces"
  SFB 677 colloquium (Kiel University, Germany 2009.6.8) Invited talk 
• Katsuyoshi Ikeda
  "Gap-mode enhanced Raman spectroscopy for well-defined metal-molecular interfaces"
  4th Hokkaido - Nanjing University Joint Symposium "Challenges in Advanced Chemistry"  (Hokkaido Univ. 2008.12.17) Invited talk
• K. Ikeda
  "Gap-mode Enhanced Raman Spectroscopy for probing Well-Organized Monolayers on Single Crystalline Metal Surfaces"
  Japan-Korea-China mini symposium on Nanotechnology, Biotechnology and Catalysis O-6 (Hokkaido Univ. 2008.11.7) Invited talk
• K. Ikeda
  75th Spring meeting of Electrochemical Society of Japan （Yamanashi 2008.3.30） Plenary lecture (in Japanese)
• K. Ikeda
  "Hyper-Raman spectroscopy for carbon nanomaterials"
  Joint Symposium on Fundamental Aspects of Nanostructured Materials and Electrocatalysis (Hokkaido University 2007)  Invited talk
• K. Ikeda
  2006 Spectroscopical Society of Japan symposium (Wako 2006.12.8)  Invite talk (in Japanese)