Published Papers

  • Benzopyrazine-fused tetracene derivatives: Thin-film formation at the crystalline mesophase for solution-processed hole transporting devices
    S. Kojima, T. Okamoto, K. Miwa, H. Sato, J. Takeya, and Y. Matsuo
    Organic Electron. 14, 437–444 (2013)
    DOI: 10.1016/j.orgel.2012.10.029
  • High-performance organic transistors with high-k dielectrics: A comparative study on solution-processed single crystals and vacuum-deposited polycrystalline films of 2,9-didecyl-dinaphtho[2,3-b:2’,3’-f]thieno[3,2-b]thiophene
    W. Ou-Yang, T. Uemura, K. Miyake, S. Onish, T. Kato, M. Katayama, M. Kang, K. Takimiya, M. Ikeda, H. Kuwabara, M. Hamada, and J. Takeya
    Appl. Phys. Lett. 101, 223304 (2012)
    DOI: 10.1063/1.4769436
  • Flexible Three-Dimensional Organic Field-Effect Transistors Fabricated by an Imprinting Technique
    R. Nakahara, M. Uno, T. Uemura, K. Takimiya, and J. Takeya
    Adv. Mater. 24, 5212-5216 (2012)
    DOI: 10.1002/adma.201201234
  • Relaxation Dynamics of Photoexcited Excitons in Rubrene Single Crystals Using Femtosecond Absorption Spectroscopy
    S. Tao, N. Ohtani, R. Uchida, T. Miyamoto, Y. Matsui, H. Yada, H. Uemura, H. Matsuzaki, T. Uemura, J. Takeya, and H. Okamoto
    Phys. Rev. Lett. 109, 097403 (2012)
    DOI: 10.1103/PhysRevLett.109.097403
  • Electroconductive π-Junction Au Nanoparticles
    M. Kanehara, J. Takeya, T. Uemura, H. Murata, K. Takimiya, H. Sekine, and T. Teranishi
    Bull. Chem. Soc. Jpn. 85, 957-961 (2012)
    DOI: 10.1246/bcsj.20120103
  • Band-like transport in solution-crystallized organic transistors
    T. Uemura, K. Nakayama, Y. Hirose, J. Soeda, M. Uno, W. Li, M. Yamagishi, Y. Okada, and J. Takeya
    Current Applied Physics 12, S87-S91 (2012)
    DOI: 10.1016/j.cap.2012.05.046
  • High-power three-dimensional polymer FETs
    K. Nakayama, T. Uemura, M. Uno, T. Okamoto, I. Osaka, K. Takimiya, and J. Takeya
    Current Applied Physics 12, S92–S95 (2012)
    DOI: 10.1016/j.cap.2012.04.016
  • Naphtho[2,1-b:6,5-b’]difuran: a versatile motif available for solution-processed single-crystal organic field-effect transistors with high hole mobility
    C. Mitsui, J. Soeda, K. Miwa, H. Tsuji, J. Takeya, and E. Nakamura
    J. Am. Chem. Soc. 134, 5448-5451 (2012)
    DOI: 10.1021/ja2120635
  • Temperature dependence of the Hall effect in pentacene field-effect transistors: Possibility of charge decoherence induced by molecular fluctuations
    T. Uemura, M. Yamagishi, J. Soeda, Y. Takatsuki, Y. Okada, Y. Nakazawa, and J. Takeya
    Phys. Rev. B 85, 035313 (2012)
    DOI: 10.1103/PhysRevB.85.035313

International Conference

  • Materials and devices of high-end organic transistors
    J. Takeya
    ICNME2012
    December 12, 2012, Awaji Yumebutai International Conference Center, Awaji, Hyogo, Japan
  • High-mobility and high-speed charge transport in organic semiconductor crystals
    J. Takeya
    International Symposium on Organic Electronics
    October 3-5, 2012, OIST, Okinawa, Japan
  • Micro-channel air-gap and ionic-liquid-gap organic single crystal transistors
    J. Takeya and M. Uno
    EDLT Workshop 2012
    September 9, 2012, The University of Tokyo, Japan
  • Possible improvement in charge transport for high-temperature processed BHJ solar cells
    G. Chi, K. Nakayama, T. Uemura, T. Okamoto, and J. Takeya
    2012 International Conference on Flexible and Printed Electronics(ICFPE2012)
    September 6-8, 2012, Yasuda Auditorium, Hongo Campus, The University of Tokyo, Japan
  • Organic single-crystal transistors with secondary gates on source and drain electrodes
    K. Nakayama, T. Uemura, and J. Takeya
    2012 International Conference on Flexible and Printed Electronics(ICFPE2012)
    September 6-8, 2012, Yasuda Auditorium, Hongo Campus, The University of Tokyo, Japan
  • High Mobility in P- and N-type Solution-Crystallized Organic Transistors and High-performance Printable Inverters
    J. Soeda, T. Uemura, Y. Hirose, M. Yamagishi, M. Uno, K. Nakayama, and J. Takeya
    2012 International Conference on Flexible and Printed Electronics(ICFPE2012)
    September 6-8, 2012, Yasuda Auditorium, Hongo Campus, The University of Tokyo, Japan
  • Solution-crystalized organic transistors and high-speed organic electronics
    J. Takeya
    The 10th International Nanotech Symposium & Nano Convergence Expo in Korea
    Aug 16, 2012, Coex, Seoul, Korea
  • High-mobility charge transport in printed organic semiconductor crystals
    J. Takeya
    International Conference on Science and Technology of Synthetic Metals
    July 9, 2012, The Hyatt Regency hotel in Downtown Atlanta, GA, USA.
  • Materials and devices of high-end organic semiconductors
    J. Takeya
    imec・Handai International Symposium
    4-5 June, 2012, ISIR
  • High-Mobility Organic Active Matrices Based on Solution-Crystallized TFT Arrays
    T. Uemrua, M. Uno, Y. Kanaoka and J. Takeya
    The 19th International Display Workshops in conjunction with Asia Display 2012 IDW/AD’12
    December 4–7, 2012, Kyoto International Conference Center Kyoto, Japan
  • Crystalline Organic TFTs for Active-Matrix Display Panels
    J. Takeya, T. Uemura, M. Uno and Y. Kanaoka
    The 19th International Display Workshops in conjunction with Asia Display 2012 IDW/AD’12
    December 4–7, 2012, Kyoto International Conference Center Kyoto, Japan
  • Solution-Crystallized High-Mobility Organic Active Matrices and Display Panels
    J. Takeya, T. Uemura, M. Uno and Y. Kanaoka
    The 19th International Display Workshops in conjunction with Asia Display 2012 IDW/AD’12
    December 4–7, 2012, Kyoto International Conference Center Kyoto, Japan
  • Intermolecular electronic coherence and high-speed operation in organic transistors
    J. Takeya
    International Workshop on Organic Field-effect Transistors and Functional Interfaces
    October 27-31, 2012, Princeton, NJ
  • Intermolecular electronic coherence in organic single-crystal transistors and high-speed organic electronics
    J. Takeya
    Material Research Society, Fall Meeting
    November 28, 2012, Boston, MA
  • Intermolecular Electronic Coherence in Organic Single-crystal Transistors and High-speed Organic Electronics
    J. Takeya and T. Uemura
    The fifth international symposium on Atomically Controlled Fabrication Technology
    October 22-24, 2012, Osaka University Nakanoshima Center, Osaka, Japan
  • Hole Transporting Properties in Single-crystal of U-shaped Furan- and Thiophene-containing π-conjugated Organic Materialss
    K. Nakahara, T. Okamoto, C. Mitsui, K. Miwa, M. Yamagishi, T. Uemura, H. Sato, A. Yamano, and J. Takeya
    The fifth international symposium on Atomically Controlled Fabrication Technology
    October 22-24, 2012, Osaka University Nakanoshima Center, Osaka, Japan
  • A novel device structure for reducing contact resistances in organic field-effect transistors
    K. Nakayama, T. Uemura, M. Uno, and J. Takeya
    2012 International Conference on Flexible and Printed Electronics(ICFPE2012)
    September 6-8, 2012, Yasuda Auditorium, Hongo Campus, The University of Tokyo, Japan
  • Single-crystal structures and Hole Transport Properties of Dinaphto[2,1-b; 1′,2′-d] chalcogenophenes
    K. Nakahara, T. Okamoto, C. Mitsui, K. Miwa, M. Yamagishi, T. Uemura, H. Sato, A. Yamano, and J. Takeya
    2012 International Conference on Science and Technology of Synthetic Metals
    July 8-13, 2012, The Hyatt Regency hotel in Downtown Atlanta, GA, USA.
  • High-mobility and high-speed organic single crystal transistors
    J. Takeya
    Gordon Research Conference
    June 4-8, 2012, Barga, Italy
  • High-power and air-stable three-dimensional polymer FETs
    K. Nakayama, T. Uemura, M. Uno, I. Osaka, K. Takimiya, and J. Takeya
    MRS Spring Meeting
    April 9-13, 2012, San Francisco Convention Center
  • Dinaphtho[1,2-b:2′,1′-d]chalcogenophenes: investigation of the effect of the chalcogen atoms on the molecular orbitals, crystal structures, and FET performances
    C. Mitsui, T. Okamoto, Y. Takatsuki, M. Yamagishi, Y. Hirose, K. Miwa, H. Sato, A. Yamano, T. Uemura, J. Takeya
    MRS Spring Meeting
    April 9-13, 2012, San Francisco Convention Center
  • Organic single-crystal transistors under high pressure
    Y. Okada, K. Sakai, S. Kitaoka, T. uemura, and J. Takeya
    MRS Spring Meeting
    April 9-13, 2012, San Francisco Convention Center
  • Charge transport in high-performance solution-crystallized organic transistors
    J. Takeya
    Seminar, Cambridge
    February 27, 2012, Cambridge
  • Hign-performance organic transistors
    J. Takeya
    Seminar
    January 13, 2012,LG
  • Charge transport in high-performance organic transistors
    J. Takeya
    Seminar, Holst Center
    January 20, 2012, Holst Center
  • Organic single-crystal semiconductors
    J. Takeya
    Colloquium, Erlangen University
    January 23, 2012, Erlangen
  • Pressure effect in organic single-crystal transistors
    Y. Okada, K. Sakai, S. Kitaoka, T. uemura, and J. Takeya
    APS March Meeting
    February 28-March 2, 2012, Boston Convention Center
  • High-performance solution-crystalized organic single crystal transistorstransistors
    J. Takeya
    IMEC-Colloquium
    January 19, 2012, IMEC, Belgium