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Helge Lemmetyinen

Helge Lemmetyinen

D-Index & Metrics

Chemistry

D-Index
61
Citations
13398
World Ranking
9233
National Ranking
47

Overview

Helge Lemmetyinen is affiliated with Tampere University in Finland. Their research focuses primarily on materials science and engineering, exploring various aspects of electronic, optical, and magnetic materials as well as electrical and electronic engineering. The scientific contributions of Helge Lemmetyinen encompass several interconnected subfields and topics.

The scientist's main fields of study include:

  • Materials Science
  • Engineering

Specific subfields of research cover:

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Helge Lemmetyinen's work addresses several important research topics, including:

  • Perovskite Materials and Applications
  • Nonlinear Optical Materials Research
  • Organic and Molecular Conductors Research

Their recent published work includes a paper titled Electron transfer in oriented donor-acceptor dyads, intralayer charge migration, and formation of interlayer charge separated states in multi-layered Langmuir-Schäfer films, published in 2020 in the journal Physical Chemistry Chemical Physics. This paper has attracted citations and contributes to the understanding of complex charge transfer mechanisms in multi-layered molecular films.

Helge Lemmetyinen has collaborated with several researchers throughout their career. Frequent co-authors include:

  • А. S. Alekseev
  • Alexander Efimov
  • Vladimir Chukharev
  • A. B. Ivanov

The primary venue for Helge Lemmetyinen's publications is Physical Chemistry Chemical Physics, reflecting a focus on physical chemistry and chemical physics domains.

Best Publications

  • 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

  • Photoinduced Electron Transfer in Phytochlorin-(60)Fullerene Dyads

    Nikolai V. Tkachenko;Lasse Rantala;Andrei Y. Tauber;Juho Helaja

  • An Extremely Small Reorganization Energy of Electron Transfer in Porphyrin−Fullerene Dyad

    Hiroshi Imahori;Nikolai V. Tkachenko;Visa Vehmanen;Koichi Tamaki

  • 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

  • Self-assembled hydrophobin protein films at the air-water interface: Structural analysis and molecular engineering

    Géza R. Szilvay;Arja Paananen;Katri Laurikainen;Elina Vuorimaa

  • 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

  • Charge-transfer emission of compact porphyrin-fullerene dyad analyzed by Marcus theory of electron-transfer.

    Visa Vehmanen;Nikolai V. Tkachenko;Hiroshi Imahori;Shunichi Fukuzumi

  • Exciplex Intermediates in Photoinduced Electron Transfer of Porphyrin−Fullerene Dyads

    Tero J. Kesti;Nikolai V. Tkachenko;Visa Vehmanen;Hiroko Yamada

  • 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

  • Structural hierarchy in molecular films of two class II hydrophobins

    Arja Paananen;Elina Vuorimaa;Mika Torkkeli;Merja Penttilä

  • 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

  • Cross-linking kinetics and swelling behaviour of aliphatic polyurethane

    S. Li;R. Vatanparast;H. Lemmetyinen

  • Azobenzene-linked porphyrin-fullerene dyads.

    David I. Schuster;Ke Li;Dirk M. Guldi;Amit Palkar

  • Nonlinear-optical activity and biomolecular chirality

    Thierry Verbiest;Martti Kauranen;Andre Persoons;Marjo Ikonen

  • Photosynthetic Antenna−Reaction Center Mimicry: Sequential Energy- and Electron Transfer in a Self-assembled Supramolecular Triad Composed of Boron Dipyrrin, Zinc Porphyrin and Fullerene

    Eranda Maligaspe;Nikolai V. Tkachenko;Navaneetha K. Subbaiyan;Raghu Chitta

  • Photoinduced charge and energy transfer in phthalocyanine-functionalized gold nanoparticles

    Anne Kotiaho;Riikka Lahtinen;Alexander Efimov;Hanna Kaisa Metsberg

  • Fe2O3-TiO2 Nano-heterostructure Photoanodes for Highly Efficient Solar Water Oxidation

    Davide Barreca;Giorgio Carraro;Alberto Gasparotto;Chiara Maccato

  • Energy and electron transfer in β-alkynyl-linked porphyrin-[60]fullerene dyads

    Sean A. Vail;David I. Schuster;Dirk M. Guldi;Marja Isosomppi

  • Near infra-red emission of charge-transfer complexes of porphyrin–fullerene films

    Nikolay V. Tkachenko;Claudia Guenther;Hiroshi Imahori;Koichi Tamaki

  • Tuning the ground-state and excited-state interchromophore interactions in porphyrin-fullerene π-stacks

    Vladimir Chukharev;Nikolai V. Tkachenko;Alexander Efimov;Dirk M. Guldi

Frequent Co-Authors

Nikolai V. Tkachenko
Nikolai V. Tkachenko Tampere University
Hiroshi Imahori
Hiroshi Imahori Kyoto University
Tomokazu Umeyama
Tomokazu Umeyama Kyoto University
Shunichi Fukuzumi
Shunichi Fukuzumi Osaka University
Yoshihiro Matano
Yoshihiro Matano Niigata University
Kei Ohkubo
Kei Ohkubo Osaka University
Francis D'Souza
Francis D'Souza University of North Texas
Mircea Guina
Mircea Guina Tampere University
M. Pessa
M. Pessa Tampere University
Seiji Isoda
Seiji Isoda Kyoto University

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