研究業績

2024　 2023　 2022　 2021　 2020　 2019　 2018　 2017　 2017以前

2024

[原著論文]

[50] (2024-3)
“Room-temperature quantum coherence of entangled multiexcitons in a metal-organic framework”
Akio Yamauchi, Kentaro Tanaka, Masaaki Fuki, Saiya Fujiwara, Nobuo Kimizuka, Tomohiro Ryu, Masaki Saigo, Ken Onda, Ryota Kusumoto, Nami Ueno, Harumi Sato, Yasuhiro Kobori,* Kiyoshi Miyata,* Nobuhiro Yanai*
Science Advances 10, eadi3147 (2024).

[49] (2024-2)
“Luminescence mechanism analysis of a TADF molecule showing peculiar thermal behavior”
Youichi Tsuchiya, Keito Mizukoshi, Masaki Saigo, Tomohiro Ryu, Kiyoshi Miyata, Ken Onda, Chihaya Adachi
Faraday Discussions, Advanced Article (2024)

[48] (2024-1)
“Matthew effect: General design strategy of ultra‐fluorogenic nanoprobes with amplified dark–bright states in aggregates”
Shinsuke Segawa, Xinwen Ou, Tianruo Shen, Tomohiro Ryu, Yuki Ishii, Herman HY Sung, Ian D Williams, Ryan TK Kwok, Ken Onda, Kiyoshi Miyata, Xuewen He, Xiaogang Liu, Ben Zhong Tang
Aggregate, e499 (2024).

2023

[原著論文]

[47](2023-7)
“Nominal appearance of inverted singlet and triplet excited state behaviour induced by the presence of a higher lying triplet excited state”
Youichi Tsuchiya Author, Keito Mizukoshi, Masaki Saigo, Tomohiro Ryu, Keiko Kusuhara, Kiyoshi Miyata, Ken Onda, Chihaya Adachi
ChemRxiv, DOI: 10.26434/chemrxiv-2023-02jpq (2023).

[46](2023-6)
“Indication of Intramolecular Triplet–Triplet Annihilation Upconversion in Organic Light‐Emitting Diodes”
Shoma Sasaki, Kenichi Goushi, Masashi Mamada, Shiori Miyazaki, Kiyoshi Miyata, Ken Onda, Chihaya Adachi
Advanced Optical Materials 12, 2470007 (2024).

[45](2023-5)
“Highly Efficient Supramolecular Photocatalysts for CO2 Reduction with Eight Carbon–Carbon Bonds between a Ru(II) Photosensitizer and a Re(I) Catalyst Unit”
Kei Kamogawa, Antonio Santoro, Ambra M. Cancelliere, Yuushi Shimoda, Kiyoshi Miyata, Ken Onda, Fausto Puntoriero, Sebastiano Campagna, Yusuke Tamaki and Osamu Ishitani
ACS Catal., 13, 9025−9032, (2023).

[44](2023-4)
“Structural-transformation-induced Drastic Luminescence Changes in an Organic-Inorganic Hybrid[ReN(CN)₄]²⁻ Salt Triggered by Chemical Stimuli”
Ryo Ohtani, Xu Jianeng, Junichi Yanagisawa, Yuudai Iwai, Takumi Ehara, Kiyoshi Miyata, Ken Onda, Jenny Pirillo, Yuh Hijikata, Tomoaki Hiraoka, Shinya Hayami, Benjamin Le Ouay, Masaaki Ohba
Angew. Chem. Int. Ed., e202306853, (2023).

[43](2023-3)
“Highly efficient light harvesting of a Eu(III) complex in a host–guest film by triplet sensitization”
Shiori Miyazaki, Kenichi Goushi, Yuichi Kitagawa, Yasuchika Hasegawa, Chihaya Adachi, Kiyoshi Miyata and Ken Onda
Chem. Sci., 24, (2023).

Chem-Station記事：
分子間エネルギー移動を利用して、希土類錯体の発光をコントロール！

[46](2023-2)
“Unprecedented highly efficient photoluminescence in a phosphorescent Ag(I) coordination polymer”
Haruka Yoshino, Masaki Saigo, Kiyoshi Miyata, Ken Onda, Jenny Pirillo, Yuh Hijikata, Wataru Kosaka, and Hitoshi Miyasaka
Chem. Commun., 59, 4616 (2023).

[45] (2023-1)
“Singlet fission as a polarized spin generator for dynamic nuclear polarization”
Yusuke Kawashima, Tomoyuki Hamachi, Akio Yamauchi, Koki Nishimura, Yuma Nakashima, Saiya Fujiwara, Nobuo Kimizuka, Tomohiro Ryu, Tetsu Tamura, Masaki Saigo, Ken Onda, Shunsuke Sato, Yasuhiro Kobori, Kenichiro Tateishi, Tomohiro Uesaka, Go Watanabe*, Kiyoshi Miyata* & Nobuhiro Yanai*
Nat. Commun. 14, 1056 (2023).

プレスリリース：
⽔を⾼核偏極化する⾊素材料の開発に成功　〜⼀重項励起⼦分裂（シングレット・フィッション）の新しい応⽤を提案〜

[原著論文]

[44] (2022-11)
“Solvent-dependent dual emission processes in charge-transfer excited states of phenothiazine-triphenyltriazine conformers“
Tomohiro Ryu, Kiyoshi Miyata, Masaki Saigo, Yuushi Shimoda, Youichi Tsuchiya, Hajime Nakanotani, Chihaya Adachi, Ken Onda*
Chem. Phys. Lett., 809, 140155 (2022).

[43] (2022-10)
“Highly Efficient Light Harvesting of Eu(III) Complex in a Host-Guest Film by Triplet Sensitization“
Shiori Miyazaki, Kenichi Goushi, Yuichi Kitagawa, Yasuchika Hasegawa, Chihaya Adachi, Kiyoshi Miyata*, Ken Onda*
ChemRxiv, DOI: 10.26434/chemrxiv-2022-qpcfh (2022).

[42](2022-9)
“Vapor-Induced Conversion of a Centrosymmetric Organic–Inorganic Hybrid Crystal into a Proton-Conducting Second-Harmonic-Generation-Active Material“
Junichi Yanagisawa, Kyosuke Tanaka, Hideaki Kano, Kiyoshi Miyata, Benjamin Le Ouay, Ryo Ohtani*, and Masaaki Ohba*
Inorg. Chem., 61, 15638–15644 (2022).

[41](2022-8)
“A Red Light-Driven CO-releasing Complex: Photoreactivities and Excited-state Dynamics of Highly-Distorted Tricarbonyl Rhenium Phthalocyanines“
Mengfei Wang, Kei Murata, Yosuke Koike, Gediminas Jonusauskas, Amaury Furet, Dario M. Bassani, Daisuke Saito, Masako Kato*, Yuushi Shimoda, Kiyoshi Miyata, Ken Onda*, Kazuyuki Ishii*
Chem. Eur. J., e202200716 (2022).

[40] (2022-7)
“Eliminating the Reverse ISC Bottleneck of TADF Through Excited State Engineering and Environment-Tuning Toward State Resonance Leading to Mono-Exponential Sub-µs Decay. High OLED External Quantum Efficiency Confirms Efficient Exciton Harvesting“
Hartmut Yersin*, Rafał Czerwieniec, Larisa Mataranga-Popa, Jan-Michael Mewes*, Gang Cheng*, Chi-Ming Che*, Masaki Saigo, Shuji Kimura, Kiyoshi Miyata, Ken Onda*
Advanced Functional Materials, 2201772 (2022).

[39] (2022-6)
“Solvent-dependent dual emission processes in charge-transfer excited states of phenothiazine-triphenyltriazine conformers“
Ryu Tomohiro, Kiyoshi Miyata, Masaki Saigo, Yuushi Shimoda, Youichi Tsuchiya, Hajime Nakanotani, Chihaya Adachi, Ken Onda*
ChemRxiv, DOI: 10.26434/chemrxiv-2022-d1qfc (2022).

[38] (2022-5)
“Singlet fission as a polarized spin generator for biological nuclear hyperpolarization“
Yusuke Kawashima, Tomoyuki Hamachi, Akio Yamauchi, Koki Nishimura, Yuma Nakashima, Saiya Fujiwara, Nobuo Kimizuka, Tomohiro Ryu, Tetsu Tamura, Masaki Saigo, Ken Onda, Shunsuke Sato, Yasuhiro Kobori, Kenichiro Tateishi, Tomohiro Uesaka, Go Watanabe*, Kiyoshi Miyata*, Nobuhiro Yanai*
ChemRxiv, DOI: 10.26434/chemrxiv-2022-r4636 (2022).

[37] (2022-4)
“Highly Fluorescent Bipyrrole-based Tetra-BF2 Flag-hinge Chromophores: Achieving Multicolor and Circularly Polarized Luminescence“
Luxia Cui, Hyuga Shinjo, Takafumi Ichiki, Koichi Deyama, Takunori Harada, Kohei Ishibashi, Takumi Ehara, Kiyoshi Miyata, Ken Onda, Yoshio Hisaeda, Toshikazu Ono*
Angew. Chem. Int. Edit., e202204358 (2022).

[36] (2022-3)
“Characterization of Excited States in a Multiple-Resonance-Type Thermally Activated Delayed Fluorescence Molecule Using Time-Resolved Infrared Spectroscopy“
Masaki Saigo, Yuushi Shimoda, Takumi Ehara, Tomohiro Ryu, Kiyoshi Miyata, and Ken Onda*
Bulletin of the Chemical Society of Japan,  95, 381-388(2022).
優秀論文（Selected Paper）に選出されました!

[35] (2022-2)
“Aggregation-induced Emission Active Thermally-activated Delayed Fluorescence Materials Possessing N-Heterocycle and Sulfonyl Groups“
Yasunori Matsui, Yudai Yokoyama, Takuya Ogaki, Kenta Ishiharaguchi, Akitsugu Niwa, Eisuke Ohta, Masaki Saigo, Kiyoshi Miyata, Ken Onda, Hiroyoshi Naito, and Hiroshi Ikeda
Journal of Materials Chemistry C,  10, 4607-4613 (2022).

[34] (2022-1)
“Heavy metal-free visible-to-UV photon upconversion with over 20% efficiency sensitized by a ketocoumarin derivative“
Masanori Uji, Naoyuki Harada, Nobuo Kimizuka, Masaki Saigo, Kiyoshi Miyata, Ken Onda, Nobuhiro Yanai
Journal of Materials Chemistry C, 10, 4558-4562 (2022).

2021

[原著論文]

[33] (2021-9)
“Low-Threshold Exciton-Polariton Condensation via Fast Polariton Relaxation in Organic Microcavities“
Tomohiro Ishii, Kiyoshi Miyata, Masashi Mamada, Fatima Bencheikh, Fabrice Mathevet, Ken Onda, Stéphane Kéna-Cohen, Chihaya Adachi
Advanced Optical Materials, 2102034 (2021).

[32] (2021-8)
“Challenges for developing photo-induced phase transition (PIPT) systems: From classical (incoherent) to quantum (coherent) control of PIPT dynamics“
Shinya Koshihara, Tadahiko Ishikawa, Yoichi Okimoto, Ken Onda, Ryo Fukaya, Masaki Hada, Yasuhiko Hayashi, Sumio Ishihara, Tadeusz Luty
Physics Reports, 942, 1-61 (2021).

[31] (2021-7)
“Enhanced Light-Matter Interaction and Polariton Relaxation by the Control of Molecular Orientation“
Tomohiro Ishii, Fatima Bencheikh, Sébastien Forget, Sébastien Chénais, Benoît Heinrich, David Kreher, Lydia Sosa Vargas, Kiyoshi Miyata, Ken Onda, Takashi Fujihara, Stéphane Kéna-Cohen, Fabrice Mathevet, Chihaya Adachi
Advanced Optical Materials, 2101048 (2021).

[30] (2021-6)
“Photoinduced oxygen transport in cobalt double-perovskite crystal EuBaCo₂O_5.39“
Masaki Hada, Satoshi Ohmura, Tadahiko Ishikawa, Masaki Saigo, Naoya Keio, Wataru Yajima, Tatsuya Suzuki, Daisuke Urushihara, Kou Takubo, Yusuke Masaki, Makoto Kuwahara, Kenji Tsuruta, Yasuhiko Hayashi, Jiro Matsuo, Takayoshi Yokoya, Ken Onda, Fuyuki Shimojo, Muneaki Hase, Sumio Ishihara, Toru Asaka, Nobuyuki Abe, Taka-hisa Arima, Shin-ya Koshihara, Yoichi, Okimoto
Applied Materials Today, 24, 101167 (2021).

[29] (2021-5)
“Achieving Thermally Activated Delayed Fluorescence from Benzophenone by Host-Guest Complexation“
Raj Kumar Koninti, Kiyoshi Miyata*, Masaki Saigo, Ken Onda*
J. Phys. Chem. C, 125, 17392-17399 (2021).

[28] (2021-4)
“Mechanistic study of photocatalytic CO₂ reduction using a Ru (II)-Re (I) supramolecular photocatalyst“
Kei Kamogawa, Yuushi Shimoda, Kiyoshi Miyata, Ken Onda*, Yasuomi Yamazaki, Yusuke Tamaki, Osamu Ishitani*
Chem. Sci., 12, 9682-9693 (2021).

[27] (2021-3)
“Determining Excited-State Structures and Photophysical Properties in Phenylphosphine Rhenium(I) Diimine Biscarbonyl Complexes Using Time-Resolved Infrared and X-ray Absorption Spectroscopies“
Yuushi Shimoda, Kiyoshi Miyata, Masataka Funaki, Tatsuki Morimoto, Shunsuke Nozawa*, Shin-ichi Adachi, Osamu Ishitani, and Ken Onda*
Inorg. Chem., 60, 7773-7784 (2021).

[26] (2021-2)
“Guest-Tunable Excited States in a Cyanide-Bridged Luminescent Coordination Polymer“
Kenta Sasaki, Haruka Yoshino, Yuushi Shimoda, Masaki Saigo, Kiyoshi Miyata, Ken Onda, Kunihisa Sugimoto, Hitomi Yamate, Hiroki Miura, Benjamin Le Ouay, Ryo Ohtani, Masaaki Ohba*
Inorg. Chem., 60, 6140-6146 (2021).

[25] (2021-2)
“Characterization of Excited States in a Multiple-Resonance-Type Thermally Activated Delayed Fluorescence Molecule Using Time-resolved Infrared Spectroscopy“
Yuushi Shimoda, Masaki Saigo, Tomohiro Ryu, Takumi Ehara, Kiyoshi Miyata, and Ken Onda*
chemRxiv, DOI:10.26434/chemrxiv.13726543 (2021).

[24] (2021-1)
“Coordination Geometrical Effect on Ligand-to-Metal Charge Transfer-Dependent Energy Transfer Processes of Luminescent Eu(III) Complexes“
Pedro Paulo Ferreira da Rosa, Shiori Miyazaki, Haruna Sakamoto, Yuichi Kitagawa, Kiyoshi Miyata, Tomoko Akama, Masato Kobayashi, Koji Fushimi, Ken Onda, Tetsuya Taketsugu, and Yasuchika Hasegawa
J. Phys. Chem. A, 125, 209-217 (2021).

2020

[原著論文]

[23] (2020-8)
“Intramolecular-rotation driven triplet-to-singlet upconversion and fluctuation induced fluorescence activation in linearly connected donor-acceptor molecules“
Yuushi Shimoda, Kiyoshi Miyata*, Masaki Saigo, Youichi Tsuchiya, Chihaya Adachi, Ken Onda*
J. Chem. Phys. 153, 204702 (2020)

[22] (2020-7)
“Study of excited states and electron transfer of semiconductor-metal complex hybrid photocatalysts for CO2 reduction using picosecond time-resolved spectroscopies“
Shunsuke Sato, Sei’ichi Tanaka, Ken-ichi Yamanaka, Shu Saeki, Keita Sekizawa, Takeshi Morikawa, and Ken Onda
Chem. Eur. J. 27, 1127 (2020)

[21] (2020-6)
” Vapor Switching of Luminescence Mechanism in a Re(V) Complex“
Kenta Sasaki, Hitomi Yamate, Haruka Yoshino, Hiroki Miura, Yuushi Shimoda, Kiyoshi Miyata, Ken Onda, Ryo Ohtani and Masaaki Ohba
Chem. Comm. 56, 12961 (2020)

[20] (2020-5)
” Picosecond dynamics in layered cobalt perovskites studied by time-resolved Raman spectroscopy“
R. Fukaya, N. Yamaya, T. Ishikawa, S. Koshihara, K. Onda, Y. Okimoto, A. Isayama, T. Sasagawa, and K. Horigane
Comptes Rendus Physique ,22(2020)

[19] (2020-4)
“Solvent Dependence of Structural Dynamics and Thermally Activated Delayed Fluorescence in 3,4,5-tri(9H-Carbazole-9-Yl)benzonitrile (ortho-3CzBN)“
Masaki Saigo, Kiyoshi Miyata, Hajime Nakanotani, Chihaya Adachi, Ken Onda,under review,
ChemRxiv, DOI: 10.26434/chemrxiv.11798568.v2

[18] (2020-3)
“Dual Energy Transfer Pathways from an Antenna Ligand to Lanthanide Ion in Trivalent Europium Complexes with Phosphine-Oxide Bridges”,
Shiori Miyazaki, Kiyoshi Miyata^*, Haruna Sakamoto, Fumiya Suzue, Yuichi Kitagawa, Yasuchika Hasegawa, Ken Onda^*,
J. Phys. Chem. A, 124, 6601-6606 (2020).

[17] (2020-2)
“Liquid-like dielectric response is an origin of long polaron lifetime exceeding 10 μs in lead bromide perovskites”,
Kiyoshi Miyata*, Ryota Nagaoka, Masaki Hada, Takanori Tanaka, Ryuji Mishima, Taihei Kuroda, Sota Sueta, Takumi Iida, Yoshifumi Yamashita, Takeshi Nishikawa, Kenji Tsuruta, Yasuhiko Hayashi, Ken Onda, Toshihiko Kiwa*, Takashi Teranishi*,
Journal of Chemical Physics, 152, 084704 (2020).

[16]  (2020-1)
“Splitting and Reorientation of π-Conjugation by an Unprecedented Photo-Rearrangement Reaction“
Yuya Inaba, Tomoki Yoneda, Yuichi Kitagawa, Kiyoshi Miyata, Yasuchika Hasegawa and Yasuhide Inokuma,
Chemical Communications, 56, 348-351 (2020).

[学会発表(国際学会)]

[5]
Core-to-Core program semiar, Brisbane, Feb. 7, 2020
“Relation between optical properties and excited-state structures of donor-accepter type TADF molecules“
〇Yuushi Shimoda, Kiyoshi Miyata, Ken Onda, (Oral)

[4]
Core-to-Core program semiar, Brisbane, Feb. 7, 2020
“Direct observation of ultrafast structural dynamics of TADF moelcules“
〇Kiyoshi Miyata, Saigo Masaki, Masakazu Umemoto, Ken Onda, (Oral)

[3]
The 11th Asian Conference on Ultrafast Phenomena(ACUP2020), Shanghai, Jan. 12-15, 2020
“Direct observation of ultrafast structural dynamics of emergent materials for optoelectronics“
〇Kiyoshi Miyata, Ken Onda, (Oral,invited)

[2]
New Trends in Photophysics of Photochemistry and their Applications – International Symposium between ETH Zurich and Kyushu University -, Fukuoka, Jan. 11, 2020
“Correlation between Ligand Conformation and Intramolecular Energy Transfer Mechanism of Lanthanide Complexes“
〇Shiori Miyazaki, (Oral,invited)

[1]
New Trends in Photophysics of Photochemistry and their Applications – International Symposium between ETH Zurich and Kyushu University -, Fukuoka, Jan. 11, 2020
“Analysis of Photofunctional Materials Using Time-resolved Infrared Spectroscopy“
〇Ken Onda, (Oral,invited)

2019

[原著論文]

[15] (2019-6)
“Selective Reduction Mechanism of Graphene Oxide Driven by the Photon Mode versus the Thermal Mode“
Masaki Hada*, Kiyoshi Miyata, Satoshi Ohmura, Yusuke Arashida, Kohei Ichiyanagi, Ikufumi Katayama, Takayuki Suzuki, Wang Chen, Shota Mizote, Takayoshi Sawa, Takayoshi Yokoya, Toshio Seki, Jiro Matsuo, Tomoharu Tokunaga, Chihiro Itoh, Kenji Tsuruta, Ryo Fukaya, Shunsuke Nozawa, Shin-ichi Adachi, Jun Takeda, Ken Onda*, Shin-ya Koshihara, Yasuhiko Hayashi, Yuta Nishina*
ACS Nano, 13, 10103-10112 (2019).

[14] (2019-5)
“Kinetics and Mechanism of Intramolecular Electron Transfer in Ru(II)-Re(I) Supramolecular CO₂-Reduction Photocatalysts: Effects of Bridging Ligands“
Yasuomi Yamazaki, Kei Ohkubo, Daiki Saito, Taiki Yatsu, Yusuke Tamaki, Sei’ichi Tanaka, Kazuhide Koike*, Ken Onda*, Osamu Ishitani*
Inorg. Chem., 58, 11480-11492 (2019)

[13] (2019-4)
“Comparison of picosecond electron dynamics in isolated and clustered Si quantum dots deposited on a semiconductor surface“
Keiki Fukumoto, Ayse Seyhan, Ken Onda, Shunri Oda, and Shin-ya Koshihara
Appl. Phys. Lett., 115, 053105 (2019).

[12] (2019-3)
“Suppression of Structural Change upon S₁-T₁ Conversion Assists the Thermally Activated Delayed Fluorescence Process in Carbazole-Benzonitrile Derivatives“
Masaki Saigo, Kiyoshi Miyata*, Sei’ichi Tanaka, Hajime Nakanotani, Chihaya Adachi, and Ken Onda*
J. Phys. Chem. Lett., 10, 2475-2480 (2019).
Selected for Supplementary cover!!

[11]  (2019-2)
“Triplet Pair States in Singlet Fission“
Kiyoshi Miyata, Felisa Conrad-Burton, Florian Geyer, and X.-Y. Zhu*
Chemical Reviews, 119, 4261-4292 (2019).

[10]  (2019-1)
“How lasing happens in CsPbBr₃ perovskite nanowires“
Andrew P. Schlaus, Michael S. Spencer, Kiyoshi Miyata, Fang Liu, Xiaoxia Wang, Ipshita Datta, Michal Lipson, Anlian Pan, X.-Y. Zhu*
Nature Communications, 10, 265 (2019).

[学会発表(国際学会)]

[11]
24th International Krutyn Summer School, Krutyn, Sep. 4 2019,
“Tracking energy transfer dynamics in Eu(III) complexes with phosphine-oxide bridges“
○Shiori Miyazaki, Kiyoshi Miyata, Yuichi Kitagawa, Yasuchika Hasegawa and Ken Onda (poster)

[10]
24th International Krutyn Summer School, Krutyn, Sep. 4 2019,
“Suppression of structural change assists thermally activated delayed fluorescence in carbazole-benzonitrile derivatives“
○Masaki Saigo, Kiyoshi Miyata, Hajime Nakanotani, Chihaya Adashi, Ken Onda, (poster, oral)

[9]
CEMS topical meeting on Organic Photoelectronics, Wako, July 25-26, 2019
“Real-time observation of concerted electron-phonon dynamics in organic materials for optoelectronics“
〇Kiyoshi Miyata, Masaki Saigo, Yuushi Shimoda, Hajime Nakanotani, Chihaya Adachi, Yuki Kurashige, Kazuya Watanabe, Yoshiyasu Matsumoto, Ken Onda, (Oral,invited)

[8]
The 23th International Symposium on the Photochemistry and Photophysics of CoordinationCompounds, Hongkong,14-19 July 2019,
“Investigation of structural dynamics of homoleptic and heteroleptic Cu(I) complex using time-resolved infrared spectroscopy“
○Ryuta Okabayashi, Kiyoshi Miyata, Hiroyuki Takeda, Osamu Ishitani, Ken Onda (poster)

[7]
The 23th International Symposium on the Photochemistry and Photophysics of CoordinationCompounds, Hongkong,14-19 July 2019,
“Correlation between structural dynamics and photophysical propertiesin Rhenium (I) diimine biscarbonyl omplexes studied by time-resolved infrared spectroscopy“
○Yuushi Shimoda, Kiyoshi Miyata, Tatsuki Morimoto, Osamu ishitani,Tamaki Yusuke, and Ken Onda (poster)

[6]
15th International Workshop on Supramolecular Nanoscience of Chemically Programmed Pigments, Kusatsu, Jun 15-16, 2019
“Real-time observation of ultrafast structural dynamics in functional molecules using time-resolved infrared spectroscopy“
〇Kiyoshi Miyata, Ken Onda, (Oral,invited)

[5]
11-th International Symposium on Ultrafast Surface Dynamics (USD11), Zhejiang, Jun 8-12, 2019
“Structural relaxation along with S1-T1 conversion in carbazol-benzonitrile derivatives”
〇Masaki Saigo, Kiyoshi Miyata, Hajime Nakanotani, Chihaya Adachi, Ken Onda , (Oral)

[4]
11-th International Symposium on Ultrafast Surface Dynamics (USD11), Zhejiang, Jun 8-12, 2019
“Tracking energy transfer dynamics in luminescent Eu3+ complex“
〇Shiori Miyazaki, Kiyoshi Miyata, Yuichi Kitagawa, Yasuchika Hasegawa, Ken Onda, (poster)

[3]
11-th International Symposium on Ultrafast Surface Dynamics (USD11), Zhejiang, Jun 8-12, 2019
“Unique Dielectric Responses in Lead-halide Perovskites: Proposal of Ferroelectric Polaron“
〇Kiyoshi Miyata, X.-Y. Zhu, (Oral)

[2]
The 3rd Frontiers of Organic Semiconductor Lasers (3FOSL), Brisbane, Austraria, Jan. 24, 2019
“Structural Dynamics in TADF Materials Studied by Time-resolved Infrared Spectroscopy“
○Ken Onda (Oral, Invited)

[1]
The 3rd Frontiers of Organic Semiconductor Lasers (3FOSL), Brisbane, Austraria, Jan. 24, 2019
“Probing electron-phonon couplings in organic semiconductors using static/time-resolved spectroscopy“
○Kiyoshi Miyata (Oral, Invited)

2018

[原著論文]

[9] (2018-5)
“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
Ultrafast Phenomena XXI, EPJ Web of Conferences, 205, 09037 (2019).

[8] (2018-4)
“Quantifying Polaron Formation and Charge Carrier Cooling in Lead‐Iodide Perovskites“
Simon A. Bretschneider, Ivan Ivanov, Hai I. Wang, Kiyoshi Miyata, Xiaoyang Zhu, Mischa Bonn
Advanced Materials, 30, 17073122 (2018).

[7] (2018-3)
“Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals“
Masaki Hada, Shohei Saito, Ryuma Sato, Kiyoshi Miyata, Yasuhiko Hayashi, Yasuteru Shigeta, Ken Onda
J. Vis. Exp., 135, e57612 (2018).

[6] (2018-2)
“Ferroelectric large polarons“
Kiyoshi Miyata and X.-Y. Zhu
Nature Mater., 17, 379-381 (2018).

[5] (2018-1)
“Investigation of excited state, reductive quenching, and intramolecular electron transfer of Ru(II)-Re(I) supramolecular photocatalysts for CO₂ reduction using time-resolved IR measurements“
Kazuhide Koike, David C. Grills, Yusuke Tamaki, Etsuko Fujita, Kei Okubo, Yasuomi Yamazaki, Masaki Saigo, Tatsuhiko Mukuta, Ken Onda and Osamu Ishitani
Chem. Sci., 9, 2961-2974 (2018).

[学会発表(国際学会)]

[10]
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)

[9]
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)

[8]
The 3rd TADF workshop, Fukuoka, Japan, July 19, 2018
“Excited-State Structural Dynamics of Thermally Activated Delayed Fluorescence Molecules“
○Masaki Saigo, Kiyoshi Miyata, Sei’ichi Tanaka, Tatsuhiko Mukuta, Hajime Nakanotani, Chihaya Adachi, Tohru Sato, Ken Onda (Oral, Poster)

[7]
The 34th Symposium on Chemical Kinetics and Dynamics
“Dynamics of polaron formation in lead halide perovskites“
○Kiyoshi Miyata; M. Tuan Trinh, Prakriti P. Joshi,Xiaoyang Zhu (Oral)

[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)

[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“
○Ken Onda (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“
○Ken Onda (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“
○Ken Onda (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“
○Ken Onda (Oral, Invited)

[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“
○Ken Onda (Oral, Invited)

[学会発表(国内学会)]

[10]
第一回「ソフトクリスタル・革新的光-物質変換」合同若手研究者育成シンポジウム, 2018年11月7-8日
“リン配位子を2つ有する四面体型Cu(I)錯体の発光ダイナミクスの解明“
○岡林 隆太、宮田 潔志、竹田 浩之、石谷 治、恩田 健（口頭）

[9]
第一回「ソフトクリスタル・革新的光-物質変換」合同若手研究者育成シンポジウム, 2018年11月7-8日
“リン配位子を2つ有する四面体型Cu(I)錯体の発光ダイナミクスの解明“
○下田 侑史、宮田 潔志、浅埜 恭平、舩橋 靖博、恩田 健（口頭）

[8]
第27回 有機EL討論会, 2018.11.
“カルバゾール‐シアノベンゼン 誘導体材料の励起状態における 量子化学計算条件の検討“
○西郷 将生, 宮田 潔志, 中野谷 一, 安達 千波矢, 恩田 健, （口頭）

[7]
第79回 応用物理学会秋季学術講演会, 2018年9月
“ポーラロンモデルからみた鉛ハライドペロブスカイトの電子物性“
○宮田 潔志，X.-Y. Zhu（招待講演）

[6]
第12回　分子科学討論会, 2018年9月
“熱活性化遅延蛍光材料の光励起構造ダイナミクスと発光特性“
○宮田 潔志，西郷 将生，田中 誠一，向田 達彦，中野谷 一，安達 千波矢，佐藤 徹，恩田 健（口頭）

[5]
2018年　光化学討論会, 2018.09
“鉛ハライドペロブスカトの光誘起キャリア生成に伴う構造ダイナミクスと動的遮蔽“
○宮田 潔志, M. Tuan Trinh, P. Prakriti Joshi, Xiaoyang Zhu（ポスター）

[4]
第13回有機デバイス院生研究会, 九州大学OPERA, 福岡, 2018年7月27日
“熱活性化遅延蛍光分子における励起状態構造の解明”
○西郷将生 (口頭)

[3]
第13回　有機デバイス院生研究会, 2018.07.
“超高速レーザー分光で探る有機材料の電子・構造ダイナミクス“
○宮田 潔志（招待講演）

[2]
第30回　配位化合物の光化学討論会, 2018.07,
“有機‐無機ハイブリッド鉛ハライドペロブスカイト半導体の光励起構造ダイナミクスと電子物性“
○宮田潔志, M. Tuan Trinh, Prakriti P. Joshi, Xiaoyang Zhu（招待講演）

[1]
第26回 有機EL討論会, 2018.06.
“TADF材料の光励起状態における分子構造変化と発光特性“
○西郷 将生, 宮田 潔志, 田中 誠一, 向田 達彦, 中野谷 一, 安達 千波矢, 佐藤 徹, 恩田 健, （口頭）

2017

[原著論文]

[4] (2017-4)
“Structural Monitoring of the Onset of Excited-State Aromaticity”
Masaki Hada*, Shohei Saito*, Sei’ichi Tanaka, Ryuma Sato, Masahiko Yoshimura, Kazuhiro Mouri, Kyohei Matsuo, Shigehiro Yamaguchi, Mitsuo Hara, Yasuhiko Hayashi, Yasuteru Shigeta*, Ken Onda*, R. J. Dwayne Miller
J. Am. Chem. Soc., 139, 15792-15800 (2017).

[3] (2017-3)
“Ultrafast electron dynamics in twisted graphene by femtosecond photoemission electron microscopy“
Keiki Fukumoto, Mohamed Boutchich, Arezki Hakim, Ken Sakurai, Daniela Di Felice, Yannick J. Dappe, Ken Onda, Shin-ya Koshihara
Carbon, 124, 49-56 (2017).

[2] (2017-2)
“Photochemical Processes in a Rhenium(I) Tricarbonyl N-Heterocyclic Carbene Complex Studied by Time-Resolved Measurements“
Tatsuhiko Mukuta, Peter V. Simpson, Jamila G. Vaughan, Brian W. Skelton, Stefano Stagni, Massimiliano Massi, Kazuhide Koike, Osamu Ishitani, Ken Onda
Inorg. Chem., 56, 3404-3413 (2017).

[1] (2017-1)
“Repeated photoswitching performance of azobenzenes adsorbed on gold surfaces: A balance between space, intermolecular interactions, and phase separation“
Mitsuyuki Kaneta, Takumu Honda, Ken Onda, Mina Han
New J. Chem., 41, 1827-1833 (2017).

[学会発表(国際学会)]

[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“
○Ken Onda (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“
○Ken Onda (Oral, Invited)

[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“
○Ken Onda (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)

[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“
○Ken Onda (Oral, Invited)

[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“
○Ken Onda (Oral, Invited)

2017年以前の業績

[参考]

恩田健
Thomson Reuters ResearcherID: H-3389-2014
Google Scholar Citations: Ken Onda

宮田潔志
Thomson Reuters ResearcherID: L-2358-2016
Google Scholar Citations: Kiyoshi Miyata