論文

• T. Umeyama, and H. Imahori,
  "Design and Control of Organic Semiconductors and Their Nanostructures for Polymer-Fullerene-Based Photovoltaic Devices ",
  J. Mater. Chem. A, DOI:10.1039/C3TA15387H
• T. Umeyama, and H. Imahori,
  "Photofunctional Hybrid Nanocarbon Materials",
  J. Phys. Chem. C, 117, 3195-3209 (2013).
• T. Umeyama, J. Baek, N. Tezuka, K. Morita, and H. Imahori,
  "Incorporation of Graphene to Fullerene Clusters and Fullerene-Nanotube Composites and Their Photoelectrochemical Properties",
  ECS J. Solid State Sci. Technol., 2, M3001-M3007 (2013).
• T. Umeyama, Y. Watanabe, E. Douvogianni, and H. Imahori,
  "Effect of Fluorine Substitution on Photovoltaic Properties of Benzothiadiazole ?Carbazole Alternating Copolymers",
  J. Phys. Chem. C, 117, 21148-21157 (2013).
• T. Umeyama, Y. Watanabe, M. Oodoi, D. Evgenia, T. Shishido, and H. Imahori,
  "Synthesis of Low Bandgap Polymers Based on Thienoquinodimethane Units and Their Applications to Bulk Heterojunction Solar Cells",
  J. Mater. Chem., 22, 24394-24402 (2012).
• T. Umeyama, K. Hirose, K. Noda, K. Matsushige, T. Shishido, H. Saarenpää, N. V. Tkachenko, H. Lemmetyinen, N. Ono, and H. Imahori,
  "Donor–Acceptor Alternating Copolymer Based on Thermally-Converted Isothianaphthene Dimer and Thiazolothiazole Subunits",
  J. Phys. Chem. C, 116, 17414-17423 (2012).
• T. Umeyama, E. Douvogianni, and H. Imahori,
  "Synthesis and Photovoltaic Properties of Conjugated Polymer Based on 1,3,4-Thiadiazole Unit",
  Chem. Lett., 41, 354-356 (2012).
• T. Umeyama, J. Mihara, N. Tezuka, Y. Matano, K. Stranius, V. Chukharev, N. V. Tkachenko, H. Lemmetyinen, K. Noda, K. Matsushige, T. Shishido, Z. Liu, K. Hirose-Takai, K. Suenaga, and H. Imahori,
  "Preparation and Photophysical and Photoelectrochemical Properties of Covalently Fixed Porphyrin-Chemically Converted Graphene Composite",
  Chem. Eur. J., 18, 4250-4257 (2012).
• T. Umeyama, K. Hirose, K. Noda, K. Matsushige, T. Shishido, H. Hayashi, Y. Matano, N. Ono, and H. Imahori,
  "Thermal Conversion of Precursor Polymer to Low Bandgap Conjugated Polymer Containing Isothianaphthene Dimer Subunits",
  J. Phys. Chem. C, 116, 1256-1264 (2012).
• T. Umeyama, J. Mihara, H. Hayashi, N. Kadota, V. Chukharev, N. V. Tkachenko, H. Lemmtyinen, K. Yoshida, S. Isoda, M. Takano, H. Imahori,
  "Effects of Fullerene Encapsulation on Structure and Photophysical Properties of Porphyrin-Linked Single-Walled Carbon Nanotubes"
  Chem. Comm., in press
• H. Hayashi, W. Nihashi, T. Umeyama, Y. Matano, S. Seki, Y. Shimizu, H. Imahori,
  "Segregated Donor-Acceptor Columns in Liquid Crystals That Exhibit Highly Efficient Ambipolar Charge Transport",
  J. Am. Chem. Soc., 133, 10736-10739, 2011.
• T. Umeyama, M. Oodoi, O. Yoshikawa, T. Sagawa, S. Yoshikawa, D. Evgenia, N. Tezuka, Y. Matano, K. Stranius, N. V. Tkachencko, H. Lemmetyinen, H. Imahori,
  "Synthesis and Photovoltaic Properties of Thiophene-Imide-Fused Thiophene Alternating Copolymers with Different Alkyl Side Chains",
  J. Mater. Chem., 21, 12454-12461, 2011.
• H. Hayashi, I. Lightcap, M. Tsujimoto, M. Takano, T. Umeyama, P. V. Kamat, H. Imahori,
  "Electron Transfer Cascade by Organic/Inorganic Ternary Composites of Porphyrin, Zinc Oxide Nanoparticle, and Reduced Graphene Oxide on Tin Oxide Electrode that Exhibits Efficient Photocurrent Generation",
  J. Am. Chem. Soc., 133, 7684-7687, 2011.
• T. Umeyama, H. Fueno, E. Kawabata, Y. Kobayashi, K. Tanaka, N. Tezuka, Y. Matano, H. Imahori,
  "Density Functional Theory Studies on Chemical Functionalization of Single-Walled Carbon Nanotubes by Bingel Reaction",
  Bull. Chem. Soc. J., 84, 748-753, 2011.
• T. Umeyama, N. Tezuka, F. Kawashima, S. Seki, Y. Matano, Y. Nakao, T. Shishido, M. Nishi, K. Hirao, H. Lehtivuori, N. V. Tkachenko, H. Lemmetyinen, H. Imahori,
  "Carbon Nanotube Wiring of Donor-Acceptor Nanograins by Self-Assembly and Efficient Charge Transportr",
  Angew. Chem. Int. Ed., 50, 4615-4619, 2011.
• L. Wei, N. Tezuka, T. Umeyama, H. Imahori, Y. Chen,
  "Formation of single-walled carbon nanotube thin films enriched with semiconducting nanotubes and their application in photoelectrochemical devicesr",
  Nanoscale, 3, 1845-1849, 2011.
• T. Umeyama, H. Fueno, E. Kawabata, Y. Kobayashi, K. Tanaka, N. Tezuka, Y. Matano, H. Imahori,
  "Photophysics and Photoelectrochemical Properties of Nanohybrids Consisting of Fullerene-Encapsulated Single-Walled Carbon Nanotubes and Poly-(3-hexylthiophene)r",
  Energy Environ. Sci., 4, 741-750 , 2011.

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受賞

• 梅山 有和、
  フラーレン・ナノチューブ学会　第7回大澤奨励賞、
  「フラーレン・カーボンナノチューブ複合材料」、
  （2010年度）