2013 Fiscal Year Final Research Report
Effect of Molecular Fluctuation on Charge Transport Mechanism and Development of High-Mobility Organic Transistors
| Project/Area Number |
23686005
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | The University of Tokyo (2013)
Osaka University (2011-2012) |
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Principal Investigator |
UEMURA Takafumi 東京大学, 新領域創成科学研究科, 特任講師 (30448097)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 有機・分子エレクトロニクス |
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| Research Abstract |
In this study, the influence of molecular fluctuation on the transport mechanism of organic transistors have been investigated. Hall effect measurements on n-type and various materials have been successfully measured. And Hall effect measurements under high pressure has been performed. Under high pressure, electronic overlap between adjacent molecules are increased and molecular fluctuation are suppressed, as a result, the mechanism of charge transport closed to clear band transport.
As for the development of high-mobility organic transistors, high-mobility material as high as 16 cm2/Vs has been developed thorough good collaborating research. The materials are designed based on the concept which comes out from this study. This result demonstrate the usefulness of the concept developed by this study. And finally, world's fastest switching organic transistors have been successfully developed in this study.
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[Journal Article] High-Performance Solution-Processabl e N-Shaped Organic Semiconducting Materials with Stabilized Crystal Phase2014
Author(s)
C. Mitsui, T. Okamoto, M. Yamagishi, J. Tsurumi, K. Yoshimoto, K. Nakahara, J. Soeda, Y. Hirose, H. Sato, A. Yamano, T. Uemura, and J. Takeya
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Journal Title
Adv. Mater
Volume: (accepted)
Peer Reviewed
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[Journal Article] Split-Gate Organic Field-Effect Transistors for High-Speed Operation2014
Author(s)
T. Uemura, T. Matsumoto, K. Miyake, M. Uno, S. Ohnishi, T. Kato, M. Katayama, S. Shinamura, M. Hamada, M.-J. Kang, K. Takimiya, C. Mitsui, T. Okamoto, and J. Takeya
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Journal Title
Adv. Mater
Volume: 26
Pages: 2983-2988
Peer Reviewed
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[Journal Article] V-Shaped Organic Semiconductors Having Solution-Processability, High-Mobility, and High Thermal Durability2013
Author(s)
T. Okamoto, C. Mitsui, M. Yamagishi, K. Nakahara, J. Soeda, Y. Hirose, K. Miwa, H. Sato, A. Yamano, T. Matsushita, T. Uemura, and . Takeya
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Journal Title
Adv. Mater
Volume: 25
Pages: 6392-6397
Peer Reviewed
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[Journal Article] Dinaphtho[1,2-b :2',1'-d ]chalcogenoph enes : Comprehensive Investigation of the Effect of the Chalcogen Atoms in the Phenacene-Typeπ-Electronic Cores2013
Author(s)
C. Mitsui, T. Okamoto, H. Matsui, M. Yamagishi, T. Matsushita, J. Soeda, K. Miwa, H. Sato, A. Yamano, T. Uemura, and J. Takeya
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Journal Title
Chem. Mater
Volume: 25
Pages: 3952-3956
Peer Reviewed
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[Journal Article] Relaxation Dynamics of Photoexcited Excitons in Rubrene Single Crystals Using Femtosecond Absorption Spectroscopy2012
Author(s)
S. Tao, N. Ohtani, R. Uchida, T. Miyamoto, Y. Matsui, H. Yada, H. Uemura, H. Matsuzaki, T. Uemura, J. Takeya, and H. Okamoto
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Journal Title
Phys. Rev. Lett
Volume: 109
Pages: 097403-1-5
Peer Reviewed
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