Onda Lab Kyushu University

Conference Talks (Ken Onda)
2024 [1] Bio-Inspired Wonders and Energy Innovations: OIST-Kyudai Joint Symposium, Feb. 29, 2024, OIST, Okinawa, Japan "Time-resolved Spectroscopic Studies on Fundamental Processes in Photofunctional Materials" Oral, Invited [2] The 11th Shanghai-Tokyo Advanced Research Symposium on Ultrafast Intense Laser Science (STAR11), June 21, 2024, Nanki-shirahama, Japan "Time-resolved Spectroscopic Studies on Emissive Processes in Organic Light Emitting Diode" Oral, Invited [3] International Conference on Materials Science and Nanotechnology (ICMSN-2024), Ulaanbaatar, Mongolia, July 8th, 2024, "Fundamental Processes in Photofunctional Materials Studied by Ultrafast Spectroscopy" Oral, Keynote Talk [4] 14th International Conference of Electroluminescence and Optoelectronic Devices (ICEL2024), Kyoto, Japan Nov. 15th, 2024 "Time-Resolved Studies on Organic Electroluminescence-Related Materials: Structural Change, Dual Emission, and Energy Transfer" Oral, Invited [5] Symposium on Aggregation Induced Emission (AIE) Chemistry & Materials, The Singapore International Chemistry Conference (SICC-12), Dec. 9, Singapore "Time-Resolved Studies of Aggregation Induced Effects on Photochemical Processes" Oral, Invited 2023 [1] The 25th International Symposium on the Photochemistry and Photophysics of Coordination Compounds, July 26, 27, 2023, Ulm, Germany "Time-resolved Infrared Studies on Arylphosphine Re(I) Carbonyl Complexes" K. Onda, T. Ehara, K. Miyata, Y. Yamazaki, O. Ishitani Poster [2] Asia Pacific Laser Symposium 2023, Sept. 5, 2023, Hakodate, Japan "Time-resolved Spectroscopic Studies on Fundamental Processes in Photofunctional Materials" Oral, Invited [3] The 14th International Conference on Optical Probes of Organic and Hybrid Semiconductors (OP2023)., Sept. 10-15, 2023, Como, Italy, "Realtime Observation of Excited State Processes in OLED Related Materials" Oral, Invited 2022 [1] International Congress on Pure & Applied Chemistry (ICPAC Kota Kinabalu 2022), Nov. 25, 2022, Kota Kinabalu, Malaysia, "Time-Resolved Infrared Spectroscopic Studies of Artificial Photosynthesis Using Metal Complexes" Oral, Invited 2021 [1] 11th Asian Photochemistry Conference, Nov. 4, 2021, Online, "Fundamental mechanisms of artificial photosynthesis studied by time-resolved infrared spectroscopy" Oral, Invited. [2] The 6th International TADF workshop, Dec. 9, 2021, online, A panelist of the panel discussion on "Future Organic Electronics" Oral, Invited. [3] The 4th International Symposium on Photofunctional Chemistry of Complex Systems (ISPCCS 2021), Dec. 15, 2021, online "Time-resolved Spectroscopic Studies on Elementary Processes in Photofunctional Metal Complexes" Oral, Invited. [4] The 2021 International Chemical Congress of Pacific Basin Societies, Dec. 18, 2021, online, "Tracking the multi-step and multi-electron CO2 reduction photocatalytic processes using time-resolved infrared spectroscopy" Ken Onda, Yuushi Shimoda, Kei Kamogawa, Kiyoshi Miyata, Osamu Ishitani Oral, Invited. 2020 [1] New Trends in Photophysics of Photochemistry and their Applications - International Symposium between ETH Zürich and Kyushu University -, Jan. 11, 2020, Kyushu Univ. Fukuoka, Japan "Analysis of Photofunctional Materials Using Time-resolved Infrared Spectroscopy" Oral, Invited (Plenary) [2] RIKEN CEMS Topical Meeting, Oct. 29, 2020, Online "Structural Dynamics in Photofunctional Materials Studied by Time-resolved Infrared Spectroscopy" Oral, Invited [3] The 27th International Display Workshops (IDW '20), Dec. 11, 2020, Online "Detailed Analysis of Emitting Processes of Emitters for OLED using Time-resolved Vibrational Spectroscopy" Ken Onda, Masaki Saigo, Yuushi Shimoda, Kiyoshi Miyata Oral, Invited 2019 [1] The 3rd Frontiers of Organic Semiconductor Lasers (FOSL), The University of Queensland, Brisbane, Australia, Jan. 24, 2019 "Structural Dynamics in TADF Materials Studied by Time-resolved Infrared Spectroscopy" Oral, Invited [2] The 10th Shanghai-Tokyo Advanced Research Symposium on Ultrafast Intense Laser Science (STAR10), June 1, 2019, Chengdu, China "Structural dynamics upon singlet-triplet conversion for developing efficient luminescent materials in organic light emitting diodes" Oral, Invited [3] The 2nd International Symposium of Soft Crystals, July 12, 2019, Narita, Chiba, Japan "Time-resolved Infrared Spectroscopy for Exploring Photofunctions in Softcrystals" Oral, Invited [4] XXIVth International Krutyn Summer School 2019, Krutyn, Masurian Lake District, Poland, Sept. 3, 2019 "Principles and applications of time-resolved infrared spectroscopy" Oral, Invited 2018 [1] The 10th Asian Conference on Ultrafast Phenomena (ACUP 2018), The University of Hong Kong, Hong Kong, Jan. 9, 2018 "Structural Dynamics and Photofunctions Studied by Time-Resolved Infrared Vibrational Spectroscopy" Oral, Invited [2] International symposium: Computational Chemistry (CC) in 14th International Conference of Computational Methods in Science and Engineering (ICCMSE2018), The Met Hotel, Thessaloniki, Greece, Mar. 18, 2018 "Structural Dynamics in Photofunctional Materials Studied by Time-resolved Infrared Vibrational Spectroscopy" Oral, Invited [3] Optics & Photonics International Congress 2018 (OPIC2018) / Conference on Laser and Synchrotron Radiation Combination Experiment (LSC2018), Pacifico Yokohama, Yokohama, Japan, April 27, 2018, "Time-resolved Vibrational Spectroscopic Studies of Structural Dynamics in Photofunctional Materials" Oral, Invited [4] Organic Optoelectronics: Lighting Up the Future A Scotland-Japan Symposium Jointly Organized, Royal Society of Edinburgh, Edinburgh, UK, May 3, 2018, "Structural Dynamics in Organic Light-Emitting Materials Studied by Time-resolved Infrared Spectroscopy" Oral, Invited [5] International symposium on spectroscopy and dynamics at surface and interface, Kyoto University, Kyoto, Japan, May 24, 2018, "Structural Dynamics in Functional Materials Studied by Time-resolved Infrared Spectroscopy" Oral, Invited [6] International School and Symposium on Ultrafast Control of Materials (UCM2018), Rennes, France, June 14, 2018 "Structural Dynamics in Photofunctional Materials Studied by Time-resolved Infrared Spectroscopy" K. Onda, M. Saigo, K. Miyata, M. Hada Oral [7] The XXI International Conference on Ultrafast Phenomena (UP2018), Grand Elysee Hotel, Hamburg, Germany, July 19, 2018 "Direct Measurement of Intramolecular Electron Transfer in a Series of Artificial Photosynthesis Processes" Ken Onda, Kei Ohkubo, Yasuomi Yamazaki, Kazuhide Koike, Sei'ichi Tanaka, and Osamu Ishitani Poster [8] 43rd International Conference on Coordination Chemistry (ICCC2018), Sendai International Center, Sendai, Japan, Aug. 2, 2018 "Realtime Observation of Photoenergy Conversion Processes using Metal Complexes" Ken Onda, Masaki Saigo, Kiyoshi Miyata, Tatsuhiko Mukuta, Sei'ichi Tanaka Oral, Invited [9] Post-ICCC2018 Conference in Fukuoka, Kyushu Univ. Fukuoka, Japan, Aug. 5, 2018, "Transition Metal Complexes in the Excited States Studied by Time-resolved Infrared Vibrational Spectroscopy" Ken Onda, Masaki Saigo, Kiyoshi Miyata, Tatsuhiko Mukuta, Sei'ichi Tanaka Oral, Invited 2017 [1] 2017 International Conference on Artificial Photosynthesis (ICARP2017), March 5, 2017, Ritsumeikan University, Kyoto, Japan "Non-radiative processes in photoenergy conversion systems studied by time-resolved infrared spectroscopy" Oral, Invited [2] The 8th Shanghai-Tokyo Advanced Research Symposium on Ultrafast Intense Laser Science (STAR8), May 28, 2017, Dunhuang, China "Artificial Photosynthesis Processes Studied by Time-resolved Infrared Spectroscopy" Oral, Invited [3] 22nd International Symposium on Photochemistry and Photophysics of Coordination Compounds (ISPPCC2017), July, 10-12, 2017, St. Catherine's College, Oxford, UK "Excited State Dynamics of Metal Complexes Involved in Artificial Photosynthesis Studied by Time-resolved Infrared Spectroscopy" Ken Onda, Sei'ichi Tanaka, Tatsuhiko Mukuta Poster [4] 2nd International TADF workshop, July 20, 2017, Kyushu Univ. Fukuoka, Japan "Structural change of TADF materials in the excited states studied by time-resolved infrared spectroscopy" Oral, Invited [5] Japan-Italy Joint Symposium on Artificial Photosynthesis, Sept. 29, 2017, Kyushu University, Fukuoka, "Artificial photosynthesis processes observed by time-resolved infrared spectroscopy" Oral, Invited [6] 4th Japan-Canada Joint Symposium on Coordination Chemistry, Nov. 30, 2017, Miyazaki, Japan "Excited State Dynamics of Transition Metal Complexes Studied by Time-resolved Infrared Vibrational Spectroscopy" Oral, Invited 2016 [1] The 7th Shanghai-Tokyo Advanced Research Symposium on Ultrafast Intense Laser Science (STAR7), May 21, 2016, Yokosuka, Kanagawa, Japan "Non-radiative Process in Transition Metal Complexes Studied by Time-resolved Infrared Spectroscopy" [2] 2nd International Symposium on Chemical Energy Conversion Processes (ISCECP-2), May 24, 2016, Kyushu University, Fukuoka, Japan "Time-resolved vibrational studies on metal complexes used in solar energy conversion" 2015 [1] The 6rd Shanghai-Tokyo Advanced Research Symposium on Ultrafast Intense Laser Science (STAR6), May 22, 2015, ZJUT, Hangzhou, China "Charge and Structure Dynamics in Organic Solid Materials Studied by Time-resolved Vibrational Spectroscopy" Oral, Invited [2] 9th Ultrafast Surface Dynamics (USD9), May 27, 2015, Biwako, Shiga, Japan "Photoinduced Dynamics in Solid Materials Studied by Time-resolved Vibrational Spectroscopy" Oral, Invited [3] Seminar at Faculty of Physics, Adam Mickiewicz University, July 3, Poznan, Poland "Photoinduced Dynamics in Organic Solid Materials Studied by Time-resolved Infrared Vibrational Spectroscopy" Oral [4] The 21st International Symposium on the Photochemistry and Photophysics of Coordination Compounds (ISPPCC 21), July 7, Krakow, Poland "Charge and structure dynamics of metal complexes observed through vibrations of polypyridyl ligands" Poster [5] The 22nd International Conference on the Chemistry ofthe Organic Solid State (ICCOSS 2015), July 15, Niigata, Japan "Photoinduced Dynamics in Organic Crystals Studied by Time-resolved Vibrational Spectroscopy" Oral [6] The 2015 IUPAC 48th General Assembly and 45th World Chemistry Congress (IUPAC-2015), Aug. 9-14, 2015, BEXCO, Busan, Korea, "Observation of charge and structure changes in photofunctional materials studied by time-resolved infrared vibrational spectroscopy" Oral, Invited [7] The Energy Materials Nanotechnology (EMN) Ultrafast Meeting, Nov. 17, Las Vegas, Nevada, USA, "Photoinduced Phase Transitions Studied by Time-resolved Vibrational Spectroscopy" Oral, Invited. [8] France-Japan Workshop, Impacting Materials with Light and Electronic Fields and Watching Real Time Dynamics (IM-LED2015), Nov. 27, Tokyo, Japan, "Time-resolved Infrared Vibrational Spectroscopy for Material Science" Oral [9] The 2015 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2015), Dec. 17, Honolulu, Hawaii, USA "Photoenergy conversion processes studied by time-resolved infrared spectroscopy" Oral, Invited. 2014 [1] First Conference on Laser and Synchrotron Radiation Combination Experiment (LSC) 2014, April 24, Pacifico Yokohama, Yokohama, Japan "Time-resolved vibrational spectroscopy for photo-functional organic materials" Oral, Invited [2] The 5rd Shanghai-Tokyo Advanced Research Symposium on Ultrafast Intense Laser Science (STAR5), May 22, Miyazaki, Japan "Picosecond infrared spectroscopy for studying photo-functional materials" Oral, Invited [3] Photoinduced Phase Transition and Cooperative Phenomena (PIPT5), June 9, Bled, Slovenina "Photofunction of organic materials studied by time-resolved infrared vibrational spectroscopy" Oral, Invited. [4] 19th International Conference on Ultrafast Phenomena (UP2014), July 11, 2014, Okinawa, Japan, "Observation of the Dark State in Ruthenium Complexes Using Femtosecond Infrared Vibrational Spectroscopy" Oral [5] 2014 International Conference on Artificial Photosynthesis (ICARP 2014), Nov. 24-28, 2014, Awaji, Japan "Time-resolved infrared spectroscopy for studying photo-energy conversion systems" Oral, Invited 2013 [1] The 4th Shanghai-Tokyo Advanced Research Symposium on Ultrafast Intense Laser Science (STAR4), Shanghai, China, May 9, 2013, "Different Photoinduced Dynamics of Charge and Structure in Organic Crystals" Oral, Invited [2] 20th International Symposium on the Photophysics and Photochemistry of Coordination Compounds, (ISPPCC2013), July 10, Traverse City, Michigan, USA, "Site-elected Dynamics in Ruthenium Polypyridyl Complexes Studied by Time-resolved Infrared Spectroscopy" Poster [3] 7th International Conference on Advanced Vibrational Spectroscopy (ICAVS-7), Aug. 25-30, 2013, Kobe, Japan, "Different photoinduced dynamics of charge and structure in organic crystals using time-resolved vibrational spectroscopy" Oral, Invited [4] International Symposium on Ultrafast Intense Laser Science 12 (ISUILS12), Oct. 9, Salamanca, Spain, "Electronic and Structural Changes over a Range from 10 fs to 100 ps in Strongly Correlated Organic Crystals" Oral, Invited 2012 [1] JST-PRESTO International Joint Symposium on Photo-Science Leading to a Sustainable Society: Environment, Energy, Functional Materials, Mar. 27 "Dynamics of complex photoenergy conversion systems studied by time-resolved vibrational spectroscopy", Poster [2] The 3rd Shanghai-Tokyo Advanced Research Symposium on Ultrafast Intense Laser Science (STAR3), Odawara, Japan, May 17, 2012, "Photoinduced dynamics from 10 fs to 100 ps in organic strongly correlated systems", Oral, Invited [3] 18th International Conference on Ultrafast Phenomena (UP2012), July 10, 2012, Lausanne, Switzerland, "The Earliest Stage of Photoinduced Phase Transition in an Organic Strongly Correlated System Using a 10-fs Pulse", Oral [4] 14th International Conference on Vibrations at Surfaces (VAS14), Sept. 25, Kobe, Japan "In-situ observation of monolayer water on a TiO₂(110) surface using vibrational sum-frequency generation spectroscopy" Oral, TuO-6 [5] International Symposium on Materials Science Opened by Molecular Degrees of Freedom (MDF2012), Dec. 2, Miyazaki, Japan "Photoinduced Dynamics in Charge Transfer Complexes Examined by Time-resolved Vibrational Spectroscopy" Oral 2011 [1] 4-th International Conference on Photoinduced Phase Transitions and Cooperative Phenomena (PIPT4), Jun 29, 30, Wroclaw, Poland, "Earlier Process of Photoinduced Phase Transition in a Strongly Correlated System Studied by a 10 fs Pulse" Poster [2] 4-th International Conference on Photoinduced Phase Transitions and Cooperative Phenomena (PIPT4), Jun 29, 30, Wroclaw, Poland, "Photoinduced Structural Phase Transition in TTF-CA Studied by Time-resolved Vibrational Spectroscopy" Poster, Presenter: Yoshitaka Matsubara (D2) [3] 4-th International Conference on Photoinduced Phase Transitions and Cooperative Phenomena (PIPT4), Jun 29, 30, Wroclaw, Poland, "Photo-induced Structural Changes on A Surface of Organic Single Crystals Observed by Vibrational Sum Frequency Generation Spectroscopy" Poster, Presenter: Keiki Fukumoto (Posdoc) [4] Workshop on Characterizations for OPV Materials and Devices, Sept. 2, AIST, Tsukuba, Japan "Carrier dyanamics in organic materials studied by time-resolved vibrational spectroscopy" Poster [5] 9th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets (ISCOM2011), Sept. 27, Gniezno, Poland "10 fs to 100 ps Dynamics of Photoinduced Phase Transition in Charge Transfer Complexes" Oral, 2010 [1] 7th International Workshop on Oxide Surfaces (IWOX-VII), Jan. 13, Echigo-Yuzawa, Niigata, Japan, "Dynamics of Monolayer Water at a TiO₂(110) Surface in Air by Time-resolved VSFG Spectroscopy" Oral, WedO1 [2] Gordon Research Conference on Ultrafast Phenomena In Cooperative Systems, Galveston, Texas, USA, Feb. 28 - Mar. 5, "Photoinduced phase transition in a quasi-1D organic conductor on the various time scales" Poster [3] 17th International Conference on Ultrafast Phenomena (UP), July 19, Snowmass Village, Corolado, USA, "Photoinduced Dynamics of a Quasi-1D Organic Conductor over a Range from 10 fs to 100 ps" Oral, MG7 [4] 7th International Symposium on Ultrafast Surface Dynamics (USD7), Aug. 22-26, Brijuni Islands, Croatia, "Dynamics of Monolayer Water on a Single Crystalline TiO₂ Surface in Air by VSFG Spectroscopy" Oral [5] 2010 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2010), December 17, Honolulu, Hawaii, USA "Time-resolved infrared vibrational spectroscopy for studying dynamics of molecular crystals" Poster, #899, Speaker: N. Fukazawa(D2) 2009 [1] The 64th Yamada Conference and The 8th International Symposium on Crsystalline Organic Metals, Superconductors and Ferromagnets (ISCOM2009), Sept. 13, Niseko, Hokkaido, Japan, "Ultrafast Photoinduced Phase Transitions in (EDO-TTF)₂PF₆ with Strong Electron-Phonon Interaction" Oral, OS2-4 2008 [1] 5th Asian Conference on Ultrafast Phenomena (ACUP 2008), Jan. 6-9, Singapore, "Ultrafast photoinduced phase transition in the organic conductor (EDO-TTF)₂PF₆" Oral, Invited [2] Gordon Research Conference on Ultrafast Phenomena In Cooperative Systems, Feb. 3-8, Lucca, Italy, "Ultrafast photoinduced phase transition in (EDO-TTF)₂PF₆" Oral, Invited [3] Yamada Conference LXIII and 3rd International Conference on Photo-Induced Phase Transitions and Cooperative Phenomena (PIPT2008), Nov. 11, Osaka, Japan "Diverse Photoinduced Phase Transitions in (EDO-TTF)₂PF₆" Oral, Invited [4] 7th International Symposium on Ultrafast Intense Laser Science (ISUILS7), Nov. 26, Kyoto, Japan "Diverse Ultrafast Photoinduced Dynamics in the Organic Conductor (EDO-TTF)₂PF₆" Poster 2007 [1] International Symposium on Molecular Science of Ultrafast Electronic Dynamics, May 18, Sendai, "Ultrafast photo-induced phase transtion in organic charge transfer complex (EDO-TTF)₂PF₆" Poster, P10 [2] Vibrations at Surfaces 12, July 21, Erice, Italy "Nature of Photo-Induced Phase and Coherent Phonon in Organic Conductor (EDO-TTF)₂PF₆" Oral 2006 [1] XXIst IUPAC Symposium on Photochemistry, April 5, Kyoto Terrsa (Kyoto) "Ultrafast Photo-induced Insulator-to-Metal Phase Transition in (EDO-TTF)₂PF₆" Oral, SO80 [2] 46th IUVSTA Workshop & 5th International Symposium on Ultrafast Surface Dynamics, May 24, Abashiri, Hokkaido "Ultrafast Photo-induced Insulator-to-Metal Phase Transition in (EDO-TTF)₂PF₆" Oral [3] International Conference on Science and Technology of Synthetic Metals (ICSM) 2006, July, Trinity College, Dublin, Ireland "Nature of Photo-induced Metallic Phase in (EDO-TTF)₂PF₆ Studied by Ultrafast IR Spectroscopy" Oral 2005 [1] 2nd International Conference on Photo-induced Phase Transitions; Cooperative, Non-linear and Functional Properties, May 26, 2005, Rennes1 University, Rennes, France "Ultrafast infrared spectroscopic study of the photo-induced phase transition in (EDO-TTF)₂PF₆" Poster [2] International Quantum Electronics Conference 2005 and the Pacific Rim Conference on Lasers and Electro-Optics 2005, July 12, Nippon Toshi Center Hotel, Tokyo "Ultrafast Infrared Spectroscopic Study of the Photo-induced Phase Transition in (EDO-TTF)₂PF₆" Oral, QTuD1-4 [3] International Quantum Electronics Conference 2005 and the Pacific Rim Conference on Lasers and Electro-Optics 2005, July 12, Nippon Toshi Center Hotel, Tokyo " Ultrafast Photo-induced Dynamics at H₂O/TiO₂(110) and CH₃OH/TiO₂(110) Interfaces " Oral, QTuD3-4