His scientific interests lie mostly in Photochemistry, Porphyrin, Photoinduced electron transfer, Fullerene and Electron transfer. His Photochemistry research is multidisciplinary, incorporating perspectives in Dye-sensitized solar cell, Ultrafast laser spectroscopy, Excited state, Photocurrent and Electrochemistry. He combines subjects such as Solar cell, Covalent bond, Near-infrared spectroscopy, Substituent and Deposition with his study of Porphyrin.
The concepts of his Photoinduced electron transfer study are interwoven with issues in BODIPY, Acceptor, Excimer, Reaction rate constant and Ion. The Fullerene study combines topics in areas such as Self-assembly, Monolayer, Nanotechnology, Moiety and Absorption. In general Electron transfer, his work in Photosynthetic reaction centre is often linked to Thymine linking many areas of study.
Helge Lemmetyinen focuses on Photochemistry, Fullerene, Porphyrin, Electron transfer and Photoinduced electron transfer. The study incorporates disciplines such as Phthalocyanine, Fluorescence, Flash photolysis, Excited state and Ground state in addition to Photochemistry. His research in Fullerene tackles topics such as Photocurrent which are related to areas like Electrode.
He focuses mostly in the field of Porphyrin, narrowing it down to matters related to Monolayer and, in some cases, Molecule and Crystallography. His Electron transfer research integrates issues from Moiety and Electron acceptor. Helge Lemmetyinen has researched Photoinduced electron transfer in several fields, including Benzonitrile, Electron donor, Acceptor and Photoexcitation.
Helge Lemmetyinen mainly focuses on Photochemistry, Electron transfer, Fullerene, Molecule and Excited state. His work in Photoinduced electron transfer and Porphyrin are all subfields of Photochemistry research. His studies deal with areas such as Ultrafast laser spectroscopy and Quenching as well as Porphyrin.
His Electron transfer research includes themes of Phthalocyanine, Quantum yield and Absorption spectroscopy. As part of the same scientific family, he usually focuses on Fullerene, concentrating on Monolayer and intersecting with Differential pulse voltammetry and Texture. His Molecule study combines topics in areas such as Crystallography, Crystal structure and Acceptor.
Photochemistry, Ultrafast laser spectroscopy, Photoinduced electron transfer, Nanotechnology and Fullerene are his primary areas of study. Particularly relevant to Porphyrin is his body of work in Photochemistry. His Ultrafast laser spectroscopy research incorporates themes from BODIPY, Computational chemistry, Absorption and Physical chemistry.
His study looks at the relationship between Photoinduced electron transfer and fields such as Acceptor, as well as how they intersect with chemical problems. His biological study spans a wide range of topics, including Chemical physics and Optoelectronics, Photocurrent, Heterojunction, Charge carrier. Helge Lemmetyinen interconnects Quenching, Polymer solar cell, Quantum dot, Molecular physics and Ion in the investigation of issues within Fullerene.
This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.
Electron-transfer state of 9-mesityl-10-methylacridinium ion with a much longer lifetime and higher energy than that of the natural photosynthetic reaction center.
Shunichi Fukuzumi;Hiroaki Kotani;Kei Ohkubo;Seiji Ogo.
Journal of the American Chemical Society (2004)
An Extremely Small Reorganization Energy of Electron Transfer in Porphyrin−Fullerene Dyad
Hiroshi Imahori;Nikolai V. Tkachenko;Visa Vehmanen;Koichi Tamaki.
Journal of Physical Chemistry A (2001)
Photoinduced Electron Transfer in Phytochlorin-(60)Fullerene Dyads
Nikolai V. Tkachenko;Lasse Rantala;Andrei Y. Tauber;Juho Helaja.
Journal of the American Chemical Society (1999)
Charge separation in a nonfluorescent donor-acceptor dyad derived from boron dipyrromethene dye, leading to photocurrent generation.
Shigeki Hattori;Kei Ohkubo;Yasuteru Urano;Hisato Sunahara.
Journal of Physical Chemistry B (2005)
Ultrafast Photodynamics of Exciplex Formation and Photoinduced Electron Transfer in Porphyrin−Fullerene Dyads Linked at Close Proximity
Nikolai V. Tkachenko;Helge Lemmetyinen;Junko Sonoda;Kei Ohkubo.
Journal of Physical Chemistry A (2003)
Exciplex Intermediates in Photoinduced Electron Transfer of Porphyrin−Fullerene Dyads
Tero J. Kesti;Nikolai V. Tkachenko;Visa Vehmanen;Hiroko Yamada.
Journal of the American Chemical Society (2002)
Charge-transfer emission of compact porphyrin-fullerene dyad analyzed by Marcus theory of electron-transfer.
Visa Vehmanen;Nikolai V. Tkachenko;Hiroshi Imahori;Shunichi Fukuzumi.
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy (2001)
Structural hierarchy in molecular films of two class II hydrophobins
Arja Paananen;Elina Vuorimaa;Mika Torkkeli;Merja Penttilä.
Effects of meso-Diarylamino Group of Porphyrins as Sensitizers in Dye-Sensitized Solar Cells on Optical, Electrochemical, and Photovoltaic Properties
Hiroshi Imahori;Yusuke Matsubara;Hiroaki Iijima;Tomokazu Umeyama.
Journal of Physical Chemistry C (2010)
1,7- And 1,6-Regioisomers of Diphenoxy and Dipyrrolidinyl Substituted Perylene Diimides: Synthesis, Separation, Characterization, and Comparison of Electrochemical and Optical Properties†
Rajeev K. Dubey;Alexander Efimov;Helge Lemmetyinen.
Chemistry of Materials (2011)
If you think any of the details on this page are incorrect, let us know.
We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below: