His primary areas of study are Photochemistry, Porphyrin, Energy conversion efficiency, Carbon nanotube and Dye-sensitized solar cell. His Photochemistry research is multidisciplinary, incorporating elements of Phthalocyanine, Covalent bond, Moiety, Organic chemistry and Protic solvent. His Porphyrin research integrates issues from Organic solar cell, Photocurrent, Electrochemistry and Adsorption.
His work carried out in the field of Energy conversion efficiency brings together such families of science as Solar cell and Carboxylic acid. Tomokazu Umeyama works mostly in the field of Dye-sensitized solar cell, limiting it down to concerns involving Perylene and, occasionally, Imide, Ruthenium, Visible spectrum and Absorption. His Nanotechnology study integrates concerns from other disciplines, such as Fullerene and Electrode.
His primary scientific interests are in Photochemistry, Fullerene, Nanotechnology, Porphyrin and Carbon nanotube. His studies deal with areas such as Energy conversion efficiency, Dye-sensitized solar cell, Excimer, Dimer and Electrochemistry as well as Photochemistry. The Fullerene study combines topics in areas such as Polymer solar cell, Conjugated system, Electrode, Substituent and Electron acceptor.
His studies in Nanotechnology integrate themes in fields like Supramolecular chemistry and Perovskite. His Porphyrin research focuses on subjects like Carboxylic acid, which are linked to Zinc porphyrin. His Carbon nanotube research is multidisciplinary, relying on both Covalent bond, Bingel reaction and Photothermal therapy.
Tomokazu Umeyama spends much of his time researching Fullerene, Nanotechnology, Carbon nanotube, Photochemistry and Organic solar cell. Tomokazu Umeyama interconnects Electrode, Electron acceptor, Polymer and Electron transfer in the investigation of issues within Fullerene. As part of one scientific family, Tomokazu Umeyama deals mainly with the area of Nanotechnology, narrowing it down to issues related to the Perovskite, and often Inorganic chemistry, Layer and Fullerene derivatives.
His Carbon nanotube research incorporates themes from Supramolecular chemistry, Rotaxane and Ring. The Photochemistry study which covers Excimer that intersects with Dimer, Crystallography and Zinc. As a part of the same scientific family, he mostly works in the field of Organic solar cell, focusing on Conjugated system and, on occasion, Energy conversion efficiency.
The scientist’s investigation covers issues in Nanotechnology, Perovskite, Polymer solar cell, Carbon nanotube and Fullerene. Tomokazu Umeyama studied Nanotechnology and Organic solar cell that intersect with Fullerene derivatives and Crystalline silicon. Tomokazu Umeyama combines subjects such as Wafer, Texture, Silicon and Energy conversion efficiency with his study of Perovskite.
His study focuses on the intersection of Polymer solar cell and fields such as Structural isomer with connections in the field of Conjugated system and Organic semiconductor. His Carbon nanotube research includes themes of Thermogravimetric analysis, Carbon, Mesoporous material and Nanoparticle. His study in Fullerene is interdisciplinary in nature, drawing from both Electron acceptor and Graphene.
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Large π-Aromatic Molecules as Potential Sensitizers for Highly Efficient Dye-Sensitized Solar Cells
Hiroshi Imahori;Tomokazu Umeyama;Seigo Ito.
Accounts of Chemical Research (2009)
Electron-donating perylene tetracarboxylic acids for dye-sensitized solar cells.
Yuki Shibano;Tomokazu Umeyama;Yoshihiro Matano;Hiroshi Imahori.
Organic Letters (2007)
Carbon nanotube-modified electrodes for solar energy conversion
Tomokazu Umeyama;Hiroshi Imahori.
Energy and Environmental Science (2008)
Novel unsymmetrically π-elongated porphyrin for dye-sensitized TiO2 cells
Masanobu Tanaka;Shinya Hayashi;Seunghun Eu;Tomokazu Umeyama.
Chemical Communications (2007)
Self-assembling porphyrins and phthalocyanines for photoinduced charge separation and charge transport
Hiroshi Imahori;Tomokazu Umeyama;Tomokazu Umeyama;Kei Kurotobi;Yuta Takano.
Chemical Communications (2012)
Supramolecular Donor-Acceptor Heterojunctions by Vectorial Stepwise Assembly of Porphyrins and Coordination-Bonded Fullerene Arrays for Photocurrent Generation
Aiko Kira;Tomokazu Umeyama;Yoshihiro Matano;Kaname Yoshida.
Journal of the American Chemical Society (2009)
Electron Transfer Cascade by Organic/Inorganic Ternary Composites of Porphyrin, Zinc Oxide Nanoparticles, and Reduced Graphene Oxide on a Tin Oxide Electrode that Exhibits Efficient Photocurrent Generation
Hironobu Hayashi;Ian V. Lightcap;Masahiko Tsujimoto;Mikio Takano.
Journal of the American Chemical Society (2011)
Naphthyl-Fused π-Elongated Porphyrins for Dye-Sensitized TiO2 Cells
Shinya Hayashi;Masanobu Tanaka;Hironobu Hayashi;Seunghun Eu.
Journal of Physical Chemistry C (2008)
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)
Photodynamic and photothermal effects of semiconducting and metallic-enriched single-walled carbon nanotubes.
Tatsuya Murakami;Hirotaka Nakatsuji;Mami Inada;Yoshinori Matoba.
Journal of the American Chemical Society (2012)
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