Updated on 2025/12/13
Doctor of Science ( 2008.3 Shizuoka University )
Master of Science ( 2005.3 University of Tsukuba )
Bachelor of Science ( 2003.3 University of Tsukuba )
Nanotechnology/Materials / Functional solid state chemistry
Niigata University Associate Professor
2024.6
Niigata University Fundamental Sciences, Graduate School of Science and Technology Associate Professor
2024.6
Niigata University Department of Science, Faculty of Science Associate Professor
2024.6
Niigata University Fundamental Sciences, Institute of Science and Technology, Academic Assembly Associate Professor
2024.6
Niigata University Assistant Professor
2024.4 - 2024.5
Niigata University Faculty of Science Department of Science Assistant Professor
2017.4 - 2024.5
Niigata University Graduate School of Science and Technology Fundamental Sciences Assistant Professor
2013.1
Niigata University Abolition organization Inorganic and Physical Chemistry Assistant Professor
2013.1 - 2017.3
Keio University Department of Chemistry Assistant Professor
2010.4 - 2012.12
Northwestern University Department of Chemistry Researcher
2008.6 - 2010.3
Country：United States
Tomoaki Miura, Mariko Yatsushiro, Akiha Yamada, Tadaaki Ikoma
The Journal of Chemical Physics 163 ( 22 ) 224704 2025.12
Transient charge carrier dynamics in organic solar cell devices studied by simultaneous optical and electric detection Invited Reviewed
Tomoaki Miura, Naoya Muramatsu, Tomoaki Takeuchi, Kazuhiko Seki, Tadaaki Ikoma
The Journal of Chemical Physics 161 ( 24 ) 241101 2024.12
Magnetic Field Effect on Photocarriers in an Organic Film Studied by Simultaneous Optical and Electrical Detection Reviewed
Tomoaki Miura, So Kobayashi, Tadaaki Ikoma
The Journal of Physical Chemistry C 128 ( 45 ) 12942 - 12947 2024.11
Tomoaki Miura, Ryoya Akiyama, So Kobayashi, Tadaaki Ikoma
The Journal of Physical Chemistry C 125 ( 41 ) 22668 - 22673 2021.10
Yoshimi Oka, Tomoaki Miura, Tadaaki Ikoma
The Journal of Physical Chemistry B 125 ( 16 ) 4057 - 4066 2021.4
Tomoaki Miura, Kio Miyaji, Takafumi Horikoshi, Shuichi Suzuki, Masatoshi Kozaki, Keiji Okada, Tadaaki Ikoma
The Journal of Chemical Physics 151 ( 23 ) 234306 - 234306 2019.12
Studies on coherent and incoherent spin dynamics that control the magnetic field effect on photogenerated radical pairs Invited Reviewed
Tomoaki Miura
MOLECULAR PHYSICS 118 ( 6 ) e1643510 2019.7
Tomoaki Miura, Kiminori Maeda, Yoshimi Oka, Tadaaki Ikoma
The Journal of Physical Chemistry B 122 ( 50 ) 12173 - 12183 2018.12
Magnetic Control of the Charge-Separated State Lifetime Realized by Covalent Attachment of a Platinum Complex Reviewed
Tomoaki Miura, Dai Fujiwara, Kimio Akiyama, Takafumi Horikoshi, Shuichi Suzuki, Masatoshi Kozaki, Keiji Okada, Tadaaki Ikoma
JOURNAL OF PHYSICAL CHEMISTRY LETTERS 8 ( 3 ) 661 - 665 2017.2
Effect of Molecular Diffusion on the Spin Dynamics of a Micellized Radical Pair in Low Magnetic Fields Studied by Monte Carlo Simulation Reviewed
Tomoaki Miura, Hisao Murai
JOURNAL OF PHYSICAL CHEMISTRY A 119 ( 22 ) 5534 - 5544 2015.6
Long-Distance Sequential Charge Separation at Micellar Interface Mediated by Dynamic Charge Transporter: A Magnetic Field Effect Study Reviewed
Tomoaki Miura, Kiminori Maeda, Hisao Murai, Tadaaki Ikoma
JOURNAL OF PHYSICAL CHEMISTRY LETTERS 6 ( 2 ) 267 - 271 2015.1
Supramolecular Control of the Spin-Dependent Dynamics of Long-Lived Charge-Separated States at the Micellar Interface As Studied by Magnetic Field Effect Reviewed
Tomoaki Miura
JOURNAL OF PHYSICAL CHEMISTRY B 117 ( 21 ) 6443 - 6454 2013.5
Manipulating Photogenerated Radical Ion Pair Lifetimes in Wirelike Molecules Using Microwave Pulses: Molecular Spintronic Gates Reviewed
Tomoaki Miura, Michael R. Wasielewski
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 133 ( 9 ) 2844 - 2847 2011.3
Electron Spin Dynamics as a Controlling Factor for Spin-Selective Charge Recombination in Donor-Bridge-Acceptor Molecules Reviewed
Tomoaki Miura, Amy M. Scott, Michael R. Wasielewski
JOURNAL OF PHYSICAL CHEMISTRY C 114 ( 48 ) 20370 - 20379 2010.12
Photoreactions and Molecular Dynamics of Radical Pairs in a Reversed Micelle Studied by Time-Resolved Measurements of EPR and Magnetic Field Effect Reviewed
Tomoaki Miura, Atsushi Kageyama, Sakiko Torii, Hisao Murai
JOURNAL OF PHYSICAL CHEMISTRY B 114 ( 45 ) 14550 - 14558 2010.11
Time-Resolved EPR Studies of Charge Recombination and Triplet-State Formation within Donor-Bridge-Acceptor Molecules Having Wire-Like Oligofluorene Bridges Reviewed
Tomoaki Miura, Raanan Carmieli, Michael R. Wasielewski
JOURNAL OF PHYSICAL CHEMISTRY A 114 ( 18 ) 5769 - 5778 2010.5
Real-time observation of the spin-state mixing process of a micellized radical pair in weak magnetic fields by nanosecond fast field switching Reviewed
Tomoaki Miura, Hisao Murai
JOURNAL OF PHYSICAL CHEMISTRY A 112 ( 12 ) 2526 - 2532 2008.3
The spin mixing process of a radical pair in low magnetic field observed by transient absorption detected nanosecond pulsed magnetic field effect Reviewed
Tomoaki Miura, Kiminori Maeda, Tatsuo Arai
JOURNAL OF PHYSICAL CHEMISTRY A 110 ( 12 ) 4151 - 4156 2006.3
Effect of coulomb interaction on the dynamics of the radical pair in the system of flavin mononucleotide and hen egg-white lysozyme (HEWL) studied by a magnetic field effect Reviewed
Tomoaki Miura, Kiminori Maeda, Tatsuo Arai
JOURNAL OF PHYSICAL CHEMISTRY B 107 ( 26 ) 6474 - 6478 2003.7
Single-Molecule Magnetoluminescence from a Spatially Confined Persistent Diradical Emitter Reviewed
Ryota Matsuoka, Shojiro Kimura, Tomoaki Miura, Tadaaki Ikoma, Tetsuro Kusamoto
Journal of the American Chemical Society 145 ( 25 ) 13615 - 13622 2023.6
Kazuhiko Seki, Tomoaki Miura, Tadaaki Ikoma
The Journal of Physical Chemistry C 127 ( 20 ) 9562 - 9572 2023.5
Ryo Miyajima, Yuuki Ooe, Tomoaki Miura, Tadaaki Ikoma, Hajime Iwamoto, Shin-ya Takizawa, Eietsu Hasegawa
Journal of the American Chemical Society 145 ( 18 ) 10236 - 10248 2023.5
Kazuhiko Seki, Naoya Muramatsu, Tomoaki Miura, Tadaaki Ikoma
The Journal of Chemical Physics 158 ( 11 ) 114704 - 114704 2023.3
Temperature-induced structural transition in an organic-inorganic hybrid layered perovskite (MA)(2)PbI2-xBrx(SCN)(2) Reviewed
Takuya Ohmi, Tomoaki Miura, Kei Shigematsu, Alexandra A. Koegel, Brian S. Newell, James R. Neilson, Tadaaki Ikoma, Masaki Azuma, Takafumi Yamamoto
CRYSTENGCOMM 24 ( 30 ) 5428 - 5434 2022.8
Copper(II) Complexes of 10,20-Diaryl-5,15-diazaporphyrin: Alternative Synthesis, Excited State Dynamics, and Substituent Effect on the <sup>1</sup>O<inf>2</inf>-Generation Efficiency Reviewed
Hikari Ochiai, Tomoaki Miura, Tadaaki Ikoma, Mao Minoura, Haruyuki Nakano, Yoshihiro Matano
Bulletin of the Chemical Society of Japan 95 ( 3 ) 427 - 432 2022
An Element‐Substituted Cyclobutadiene Exhibiting High‐Energy Blue Phosphorescence Reviewed
Yoshiaki Shoji, Yasuhiro Ikabata, Ivan Ryzhii, Rabia Ayub, Ouissam El Bakouri, Taiga Sato, Qi Wang, Tomoaki Miura, Buddhika S. B. Karunathilaka, Youichi Tsuchiya, Chihaya Adachi, Henrik Ottosson, Hiromi Nakai, Tadaaki Ikoma, Takanori Fukushima
Angewandte Chemie International Edition 60 ( 40 ) 21817 - 21823 2021.7
スピン動力学に基づく光生成電荷分離状態の反応制御
三浦 智明
光化学 51 ( 1 ) 28 - 31 2020.4
An impact of higher fullerene on charge recombination in organic solar cell studied by magnetoconductance Reviewed
Ryota Shoji, Tomoaki Miura, Tadaaki Ikoma
Organic Electronics 75 105383 - 105383 2019.12
Satoshi Omomo, Ryosuke Fukuda, Tomoaki Miura, Tatsuya Murakami, Tadaaki Ikoma, Yoshihiro Matano
ChemPlusChem 84 ( 6 ) 740 - 745 2019
Visible Light and Hydroxynaphthylbenzimidazoline Promoted Transition-Metal-Catalyst-Free Desulfonylation of N-Sulfonylamides and N-Sulfonylamines Reviewed International journal
Eietsu Hasegawa, Yuto Nagakura, Norihiro Izumiya, Keisuke Matsumoto, Tsukasa Tanaka, Tomoaki Miura, Tadaaki Ikoma, Tadaaki Ikoma, Hajime Iwamoto, Kan Wakamatsu
Journal of Organic Chemistry 83 ( 18 ) 10813 - 10825 2018.9
Shoji Ryota, Omori Takuya, Wakikawa Yusuke, Miura Tomoaki, Ikoma Tadaaki
ACS OMEGA 3 ( 8 ) 9369 - 9377 2018.8
有機薄膜太陽電池の物理化学
三浦 智明
化学と教育 66 ( 7 ) 338 - 339 2018.7
Benzimidazolium Naphthoxide Betaine Is a Visible Light Promoted Organic Photoredox Catalyst Reviewed
Eietsu Hasegawa, Norihiro Izumiya, Tomoaki Miura, Tadaaki Ikoma, Hajime Iwamoto, Shin-Ya Takizawa, Shigeru Murata
Journal of Organic Chemistry 83 ( 7 ) 3921 - 3927 2018.4
Solvent Viscosity Effect on Triplet-Triplet Pair in Triplet Fusion Reviewed
Kana Yokoyama, Yusuke Wakikawa, Tomoaki Miura, Jun-ichi Fujimori, Fuyuki Ito, Tadaaki Ikoma
JOURNAL OF PHYSICAL CHEMISTRY B 119 ( 52 ) 15901 - 15908 2015.12
Aryl-substituted dimethylbenzimidazolines as effective reductants of photoinduced electron transfer reactions Reviewed
Eietsu Hasegawa, Taku Ohta, Shiori Tsuji, Kazuma Mori, Ken Uchida, Tomoaki Miura, Tadaaki Ikoma, Eiji Tayama, Hajime Iwamoto, Shin-ya Takizawa, Shigeru Murata
TETRAHEDRON 71 ( 34 ) 5494 - 5505 2015.8
Carrier Dynamics in PentacenelC(60) Bilayer Solar Cell Investigated through the Magnetoconductance Reviewed
Takuya Omori, Yusuke Wakikawa, Tomoaki Miura, Yuji Yamaguchi, Ken-ichi Nakayama, Tadaaki Ikoma
JOURNAL OF PHYSICAL CHEMISTRY C 118 ( 49 ) 28418 - 28424 2014.12
Electron Spin Polarization Transfer from Photogenerated Spin-Correlated Radical Pairs to a Stable Radical Observer Spin Reviewed
Colvin Michael T, Carmieli Raanan, Miura Tomoaki, Richert Sabine, Gardner Daniel M, Smeigh Amanda L, Dyar Scott M, Conron Sarah M, Ratner Mark A, Wasielewski Michael R
JOURNAL OF PHYSICAL CHEMISTRY A 117 ( 25 ) 5314 - 5325 2013.6
Magnetic Field-Induced Switching of the Radical-Pair Intersystem Crossing Mechanism in a Donor-Bridge-Acceptor Molecule for Artificial Photosynthesis Reviewed
Michael T. Colvin, Annie Butler Ricks, Amy M. Scott, Amanda L. Smeigh, Raanan Carmieli, Tomoaki Miura, Michael R. Wasielewski
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 133 ( 5 ) 1240 - 1243 2011.2
Competitive Electron Transfer and Enhanced Intersystem Crossing in Photoexcited Covalent TEMPO-Perylene-3,4:9,10-bis(dicarboximide) Dyads: Unusual Spin Polarization Resulting from the Radical-Triplet Interaction Reviewed
Michael T. Colvin, Emilie M. Giacobbe, Boiko Cohen, Tomoaki Miura, Amy M. Scott, Michael R. Wasielewski
JOURNAL OF PHYSICAL CHEMISTRY A 114 ( 4 ) 1741 - 1748 2010.2
Spin-Selective Charge Transport Pathways through p-Oligophenylene-Linked Donor-Bridge-Acceptor Molecules Reviewed
Amy M. Scott, Tomoaki Miura, Annie Butler Ricks, Zachary E. X. Dance, Emilie M. Giacobbe, Michael T. Colvin, Michael R. Wasielewski
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 131 ( 48 ) 17655 - 17666 2009.12
A practical simulation and a novel insight to the magnetic field effect on a radical pair in a micelle Reviewed
Kiminori Maeda, Tomoaki Miura, Tatsuo Arai
MOLECULAR PHYSICS 104 ( 10-11 ) 1779 - 1788 2006.5
Spin dynamics of the radical pair in a low magnetic field studied by the transient absorption detected magnetic field effect on the reaction yield and switched external magnetic field Reviewed
Toshiaki Suzuki, Tomoaki Miura, Kiminori Maeda, Tatsuo Arai
JOURNAL OF PHYSICAL CHEMISTRY A 109 ( 44 ) 9911 - 9918 2005.11
Towards Quantum Dynamic Therapy – Concept and Strategy of Radical-Pair Based Drug Delivery System – Invited
Tomoaki Miura, Wakana Tone, Tadaaki Ikoma
18th International Symposium on Spin and Magnetic Field Effects in Chemistry and Related Phenomena 2024.9
量子動力学療法に向けた ラジカル対ナノカプセルの開発と分光測定 Invited
三浦 智明, 刀祢 若奈, 生駒 忠昭
量子生命科学会 第6回大会 2024.5
Carrier and Spin Dynamics in Organic Photovoltaic Thin Films Studied by Simultaneous Optical and Electrical Detection Invited
Tomoaki Miura, Sou Kobayashi, Naoya Muramatsu, Mariko Yatsushiro, Tadaaki Ikoma
17th International Symposium on Spin and Magnetic Field Effects in Chemistry and Related Phenomena 2022.8
分光-電気伝導同時計測を用いた有機半導体薄膜 キャリアダイナミクスの解明 Invited
三浦 智明, 生駒 忠昭
第24 回ESR フォーラム研究会 2021.9
Magnetic Field Effects on Organic Photovoltaic Thin Films as Studied by Simultaneous Optical-Electrical Transient Measurement
Tomoaki Miura, So Kobayashi, Mariko Yatsushiro, Tadaaki Ikoma
Joint Conference of 22nd International Society of Magnetic Resonance Conference, the 9th Asia-Pacific NMR Symposium, the 60th Annual Meeting of the Nuclear Magnetic Resonance Society of Japan (2021), and the 60th Annual Meeting of the Society of Electron Spin Science and Technology 2021.8
可視近赤外過渡吸収－過渡光電流同時観測法を用いた有機半導体薄膜の光キャリア動力学研究 Invited
三浦 智明
光化学協会 光化学応用講座2019 「時間分解分光の新展開：原理から先端応用まで」 2019.12
Charge Career and Spin Dynamics in Organic Semiconductor Thin Films Studied by Simultaneous Measurement of Transient Optical Absorption and Photocurrent Signals
Tomoaki Miura, Ryoya Akiyama, Akiha Yamada, Sou Kobayashi, Tadaaki Ikoma
16th International Symposium on Spin and Magnetic Field Effects in Chemistry and Related Phenomena 2019.8
Gigantic Magnetic Field Effect on Long-Lived Charge Separated States Created at a Nonionic Vesicle Interface
Tomoaki Miura, Kiminori Maeda, Tadaaki Ikoma
15th International Symposium on Spin and Magnetic Field Effects in Chemistry and Related Phenomena 2017.9
Recent Development in Spin Chemistry of Photo-generated Radical Pairs Confined in Surfactant-based Soft Nanomaterials Invited
Tomoaki Miura, Kiminori Maeda, Hisao Murai, Tadaaki Ikoma
Asia-Pacific EPR/ESR Symposium 2016 2016.8
Dynamic and Electronic Characteristics of Photogenerated Radical Pairs Revealed by Real time Observation of the Spin Dynamics Invited
Tomoaki Miura
Joint Conference of 9th Asia-Pacific EPR/ESR Society Symposium, 1st International EPR (ESR) Society Symposium, 53rd Annual Meeting of the Society of Electron Spin Science and Technology, 2014 2014.11
電子スピンダイナミクスの実時間観測による光反応中間体ラジカル対の研究 Invited
三浦 智明
第52回電子スピンサイエンス学会年会 2013.10
Supramolecular Control of Spin-Dependent Electron Transfer Dynamics in Micellar Supercages as Studied by Magnetic Field Effects
Tomoaki Miura, Kiminori Maeda, Hisao Murai, Tadaaki Ikoma
13th International Symposium on Spin and Magnetic Field Effects in Chemistry and Related Phenomena 2013.4
Spin Dynamics of a Long-lived Singlet-BornRadical Ion Pair Created in an Acceptor-adsorbed Micellar Super-cage
Tomoaki Miura
2nd International Symposium on Electron Spin Science 2012.7
Extracting Molecular Motion That Gates Charge Transport among Molecular Wires from the Spin Dynamics of the Radical Pair
Tomoaki Miura, Michael R. Wasielewski
The 12th International Symposium on Spin and Magnetic Field Effects in Chemistry and Related Phenomena 2011.5
Spin Dynamics of Long-Lived Radical Pairs in Weak Magnetic Fields Studied by Nanosecond Pulsed Magnetic Field Effect
Tomoaki Miura, Hisao Murai
A Joint Conference of the International Symposium on Electron Spin Science and the 46th Annual Meeting of the Society of Electron Spin Science and Technology 2007.11
Real Time Observation of the Spin Mixing Process of a Singlet Radical Pair in a Micelle by Means of Nanosecond Magnetic Field Switching
Tomoaki Miura, Hisao Murai
Sendai-Berlin-Novosibirsk Joint Seminar on Advanced EPR 2006.8
第5回学長賞（若手教員研究奨励）
2018.11 新潟大学 Magnetic Control of the Charge-Separated State Lifetime Realized by Covalent Attachment of aPlatinum Complex
Young Investigator Award
2014 The International EPR (ESR) Society
電子スピンサイエンス学会奨励賞
2013.11 電子スピンサイエンス学会 電子スピンダイナミクスの実時間観測による光反応中間体ラジカル対の研究
第88回日本化学会春期年会 学生講演賞
2008 日本化学会 長寿命ラジカル対の磁場効果に対する分子拡散運動の効果
三浦 智明, 村井 久雄
優秀講演賞
2006 電子スピンサイエンス学会 過渡吸収検出ナノ秒磁場スイッチング法を用いた一重項ラジカル対スピンダイナミクスの解析
三浦 智明, 村井 久雄
Best Poster Award, 2nd Sendai-Berlin Joint Seminar on Advanced ESR
2004 The Effect of Nanosecond Pulsed Magnetic Field on the Spin Dynamics of Radical Pairs.
Tomoaki Miura, Kiminori Maeda, Tatsuo Arai
有機半導体薄膜におけるキャリア動力学の実時間観測と光スピントロニック制御
Grant number：22K05048
2022.4 - 2025.3
System name：科学研究費助成事業
Research category：基盤研究(C)
Awarding organization：日本学術振興会
三浦 智明
Grant amount：\4160000 （ Direct Cost: \3200000 、 Indirect Cost：\960000 ）
分光・電気伝導同時実時間観測による有機半導体薄膜光物性の解明
Grant number：19K05399
2019.4 - 2023.3
System name：科学研究費助成事業
Research category：基盤研究(C)
Awarding organization：日本学術振興会
三浦 智明
Grant amount：\4160000 （ Direct Cost: \3200000 、 Indirect Cost：\960000 ）
標準的なP3HT:PCBMバルクヘテロ薄膜を用いた有機薄膜太陽電池素子について、光生成電荷キャリアの消滅過程を詳細に解析した。開発した過渡光吸収-過渡光電流同時計測によって得られる電流信号と分光信号の除算から平均キャリア移動度の時間変化が得られた。ここで求まる平均移動度に加え、電極取り出し時間から求まる従来型のTOF移動度を同一素子・同一条件で得ることに成功した。2つの方法で得られた移動度の温度依存性の比較から、TOF移動度は活性化エネルギーが小さく、移動準位近辺のキャリアを選択的に評価しているのに対し、トラップキャリアも含めた全平均移動度は顕著に大きな活性化エネルギーを示し、深いトラップに捕捉されたキャリアが薄膜中に多数存在していることが明らかになった。このことは従来の電気的移動度計測法では、非常にマイナーな高移動性キャリアを選択的に評価してしまう危険性があり、電流にほとんど寄与しないトラップキャリアの寄与を正しく評価できないことを如実に示している。本手法は有機薄膜太陽電池素子中に存在する、移動度分布をもったキャリアの全体像を実時間的に評価できる有用な手法である。
また、過渡光吸収、過渡光電流の時間変化がべき乗測に従って減衰することに着目し、共同研究にて理論計算との比較を行った。キャリア再結合の寄与は無視した計算ではあるが、今回観測された時間変化は従来のホッピング理論でおおむね説明できることがあきらかとなった。
これと並行し、発光性サンプルの測定にも対応できるように、過渡吸収信号から発光信号を差し引く測定プログラム改良を行い、色素ドープ導電性薄膜素子において10 nsスケールの再結合過程に対する磁場効果の観測に成功した。
Studies on interfacial electron transfer in the nonionic vesilcels towards development of photo and magneto functional materials
Grant number：15K05384
2015.10 - 2019.3
System name：Grants-in-Aid for Scientific Research
Research category：Grant-in-Aid for Scientific Research (C)
Awarding organization：Japan Society for the Promotion of Science
MIURA Tomoaki, Ikoma Tadaaki, Maeda Kiminori
Grant amount：\4680000 （ Direct Cost: \3600000 、 Indirect Cost：\1080000 ）
Niosomes are bilayer membrane capsules, which can be prepared very easily by dispersing low cost detergent molecules in water. They recently draws much attention as drug delivery materials for medical uses. In this project, basic researches have been carried out for development of novel materials such as photo- and magnetically controlable drug delivery and magnetically enhanecd artificial photosynthesis. Newly developed niosome capsules that involve a pigment and a vitamin molecule give the long-lived charge-separated state upon photo-irradiation, of which the lifetime is greatly enhanced by applied magnetic field. Multi-step electron transfer, which is important for artificial photosynthesis, is realized by utizling the niosome capsule. Preliminary results that indicate photo-control of the membrane structure, which is important for drug delivery, have also been presented.
Mechanism elucidation of electron transport mediated by bound water molecules on bilayer membrane interfaces studied by electron spin dynamics as a probe
Grant number：25810009
2013.4 - 2016.3
System name：Grants-in-Aid for Scientific Research
Research category：Grant-in-Aid for Young Scientists (B)
Awarding organization：Japan Society for the Promotion of Science
MIURA Tomoaki
Grant amount：\4420000 （ Direct Cost: \3400000 、 Indirect Cost：\1020000 ）
Mechanistic studies have been conducted for electron transfer reactions in the interfaces of aqueous molecular assemblies consisting of detergent molecules such as micelles and vesicles. A sequential electron transfer system has been constructed on the interface of a nonionic micelle by using three kinds of molecules. In this system, a long-lived and long-range charge separated state is generated because of sequential electron transfer mediated by diffusion of the dynamic charge transporter molecule. In a nonionic vesicle system, construction of electron transfer system that exhibits a long-lived charge separated state has been succeeded. The transient concentration of the charge separated state is increased twice by application of magnetic field of 200 mT. These findings would help understanding of electron transfer in the vicinity of biomembranes and development of photo and magneto functional materials constructed from low-cost detergent molecules.
Photo-electronic properties and electron transfer of organic-dye nano particles
Grant number：23750022
2011 - 2012
System name：Grants-in-Aid for Scientific Research
Research category：Grant-in-Aid for Young Scientists (B)
Awarding organization：Japan Society for the Promotion of Science
MIURA Tomoaki
Grant amount：\4550000 （ Direct Cost: \3500000 、 Indirect Cost：\1050000 ）
Supramolecular complex between water soluble porphyirns (donor) and naphthalene diimides (NDI, acceptor) was studied for the elucidation of basic mechanisms involved in photo-functional organic molecular assemblies. Efficient complex formation with an association constant over 10 to the 5th power is observed for complexes between a cationic porphyrin and anionic NDIs in an aqueous solution. It has been concluded from structural and environmental effect on the complex formation that the main driving force is the hydrophobic interaction, which is strongly affected by the coulomb interaction. Spectroscopic studies indicate the fast forward and back electron transfer in the assembly, of which the time constants are shorter than a few picoseconds.
課題研究 a
領域学修入門
課題研究 b
量子反応速度論
反応量子動力学
リフレクションデザインIII
領域概説 B (理学)
リフレクションデザインII
先端科学技術総論
化学コロキウム
理学スタディ・スキルズ
化学基礎実習a
化学基礎実習b
理学スタディ・スキルズ
Chemistry TodayⅠ
量子化学演習
化学実験
物理化学実験
