Published Papers

  • “Surface doping of organic single-crystal semiconductors to produce strain-sensitive conductive nanosheets”
    S.Watanabe, R. Hakamatani, K. Yaegashi, Y. Yamashita, H. Nozawa, M. Sasaki, S. Kumagai, T. Okamoto, C. G. Tang, Lay-Lay Chua. P. K. H. Ho, and J. Takeya
    Adv. Sci. 2020, 2002065
    doi.org/10.1002/advs.202002065
  • ”Coherent Electron Transport in Air‐Stable, Printed Single‐Crystal Organic Semiconductor and Application to Megahertz Transistors”
    S. Kumagai, S. Watanabe, H. Ishii, N. Isahaya, A. Yamamura, T. Wakimoto, H. Sato, A. Yamano, T. Okamoto, and J. Takeya
    Adv. Mater. 2020, 2003245
    DOI:10.1002/adma.202003245
  • ”Controlled steric selectivity in molecular doping towards closest-packed supramolecular conductors”
    S. Kohno, Y. Yamashita, N. Kasuya, T. Mikie, I. Osaka, K. Takimiya, J. Takeya and S. Watanabe
    Communications Materials volume 1, Article number: 79 (2020)
    DOI.org/10.1038/s43246-020-00081-3
  • ”Cooperative Aggregations of Nitrogen-Containing Perylene Diimides Driven by Rigid and Flexible Functional Groups”
    S. Kumagai, H. Ishii, G. Watanabe, T. Annaka, E. Fukuzaki, Y. Tani, H. Sugiura, T. Watanabe, T. Kurosawa, J. Takeya, and T. Okamoto
    Chem. Mater. 2020, XXXX, XXX, XXX-XXX
    DOI.org/10.1021/acs.chemmater.0c01888
  • ”Band-like transporting and thermally durable V-shaped organic semiconductors with a phenyl key block”
    C. Sawabe, S. Kumagai, M. Mitani, H. Ishii, M. Yamagishi, H. Sagayama, R. Kumai, H. Sato, J. Takeya and T. Okamoto
    J. Mater. Chem. C, 2020, Advance Article
    Doi.org/10.1039/D0TC03318A
  • ”Correlation between the static and dynamic responses of organic single-crystal field-effect transistors”
    T. Sawada, A. Yamamura, M. Sasaki, K. Takahira, T. Okamoto, S. Watanabe and J. Takeya
    Nat. Commun. volume 11, Article number: 4839 (2020)
    DOI.org/10.1038/s41467-020-18616-0
  • ”Alkyl-Substituted Selenium-Bridged V-Shaped Organic Semiconductors Exhibiting High Hole Mobility and Unusual Aggregation Behavior”
    T. Okamoto, M. Mitani, C. P. Yu, C. Mitsui, M. Yamagishi, H. Ishii, G.Watanabe, S. Kumagai, D. Hashizume, S. Tanaka, M. Yano, T. Kushida, H. Sato, K. Sugimoto, T. Kato, and J. Takeya
    J. Am. Chem. Soc. 2020, 142, 35, 14974–14984
    Doi.org/10.1021/jacs.0c05522
  • “Electroless‐Plated Gold Contacts for High‐Performance, Low Contact Resistance Organic Thin Film Transistors”
    T. Makita, R. Nakamura, M. Sasaki, S. Kumagai, T. Okamoto, S. Watanabe, and J. Takeya
    Adv. Funct. Mater. First published,10 August  (2020)
    Doi.org/10.1002/adfm.202003977
  • ”Effect of Electronically Distinct Aromatic Substituents on the Molecular Assembly and Hole Transport of V-Shaped Organic Semiconductors”
    C. P. Yu, M. Mitani, H. Ishii, M. Yamagishi, H. Kitamura, M. Yano, J. Takeya, and T. Okamoto
    J. Phys. Chem. C 124 (32), 17503-17511（2020）
    DOI: 10.1021/acs.jpcc.0c04088
  • “Low-voltage complementary inverters using solution-processed, high-mobility organic single-crystal transistors fabricated by polymer-blend printing”
    T. Sawada, T. Makita, A. Yamamura, M. Sasaki, Y. Yoshimura, T. Hayakawa, T. Okamoto, S. Watanabe, S. Kumagai, and J. Takeya
    Appl. Phys. Lett. 117,033301 (2020)
    Doi.org/10.1063/5.0006651
  • ”Robust, high-performance n-type organic semiconductors”
    T. Okamoto, S. Kumagai, E. Fukuzaki, H. Ishii, G. Watanabe, N. Niitsu, T. Annaka, M. Yamagishi, Y. Tani, H. Sugiura, T. Watanabe, S. Watanabe, and J. Takeya
    Sci. Adv. Vol.6, no.18, eaaz0632 （2020）
    DOI: 10.1126/sciadv.aaz0632
  • ”Bent-Shaped p-Type Small-Molecule Organic Semiconductors: A Molecular Design Strategy for Next-Generation Practical Applications”
    T. Okamoto, C. P. Yu, C. Mitsui, M. Yamagishi, H. Ishii, and J. Takeya
    J. Am. Chem. Soc., 142, 20, 9083–9096（2020）
    DOI/10.1021/jacs.9b10450
  • “Damage-free Metal Electrode Transfer to Monolayer Organic Single Crystalline Thin Films”
    T. Makita, A. Yamamura, J. Tsurumi, S. Kumagai, T. Kurosawa, T. Okamoto, M. Sasaki, S. Watanabe and J. Takeya
    Sci. Rep volume 10, Article number: 4702 (2020)
    DOI.org/10.1038/s41598-020-61536-8
  • “High‐Speed Organic Single‐Crystal Transistor Responding to Very High Frequency Band”
    A.Yamamura T. Sakon K. Takahira T. Wakimoto M. Sasaki T. Okamoto, S.Watanabe & J. Takeya
    Adv. Funct. Mater (2020)
    DOI.org/10.1002/adfm.201909501
  • “Sub-molecular structural relaxation at a physisorbed interface with monolayer organic single-crystal semiconductors”
    A.Yamamura, H.Fujii, H.Ogasawara, D/Nordlund, O. Takahashi, Y.Kishi, H.Ishii, N.Kobayashi, N.Niitsu, B.Blülle, T.Okamoto, Y.Wakabayashi, S.Watanabe & J. Takeya
    Communications Physics volume 3, Article number: 20 (2020)
    DOI.org/10.1038/s42005-020-0285-7
  • “Solution-processed flexible metal-oxide thin-film transistors operating beyond 20 MHz”
    X.Wei, S.Kumagai, K.Tsuzuku, A.Yamamura, T.Makita, M.Sasaki, S.Watanabe and J.Takeya
    Flex. Print. Electronn. 5 015003 (2020)
    DOI.org/10.1088/2058-8585/ab603b

International Conference

Invited

  • High-performance solution-processed two-dimensional p- and n-type organic single-crystal transistors and CMOS circuits
    J. Takeya
    MRS2020
    Online November 27, 2020

Oral

Poster

Awards