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