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 |
Research Field |
Applied materials science/Crystal engineering
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Research Institution | The University of Tokyo (2013) Osaka University (2011-2012) |
Principal Investigator |
UEMURA Takafumi 東京大学, 新領域創成科学研究科, 特任講師 (30448097)
|
Project Period (FY) |
2011-04-01 – 2014-03-31
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Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥28,080,000 (Direct Cost: ¥21,600,000、Indirect Cost: ¥6,480,000)
Fiscal Year 2013: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2012: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2011: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
|
Keywords | 有機・分子エレクトロニクス / 有機半導体 / 有機トランジスタ / Hall効果 / 熱揺らぎ |
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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Report
(4 results)
Research Products
(42 results)
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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)
Related Report
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
Related Report
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
Advanced Materials
Volume: in press
Issue: 19
Pages: 2983-2988
DOI
Related Report
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
Related Report
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
Related Report
Peer Reviewed
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[Journal Article] V-Shaped Organic Semiconductors with Solution Processability, High Mobility, and High Thermal Durability2013
Author(s)
Okamoto, T. ; Mitsui C. ; Yamagishi, M. ; Nakahara. K. ; Soeda, J. ; Hirose, Y. ; Miwa, K. ; Sato, H. ; Yamano, A. ; Matsushita, T. ; Uemura, T. ; Takeya, J
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Journal Title
Adv. Mater.
Volume: 25
Issue: 44
Pages: 6392-6397
DOI
Related Report
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
Related Report
Peer Reviewed
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[Journal Article] High-performance organic transistors with high-k dielectrics: A comparative study on solution processedsingle crystals and vacuum-deposited polycrystalline films of 2,9-didecyldinaphtho[2,3- b:2' ,3'-f]thieno[3,2-b]thiophene2012
Author(s)
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
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Journal Title
Appl.Phys. Lett
Volume: 101
Issue: 22
Pages: 223304-5
DOI
Related Report
Peer Reviewed
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[Journal Article] Hall effect measurements probing the degree of charge carrier delocalization in solution-processed, crystalline molecular semiconductors2011
Author(s)
J.-F, Chang, T.Sakanoue, Y.Oliviera, T.Uemura,M.-B.D.-Madec, S.G.Yeates, J.Cornila, J.Takeya, A.Troisi, H.Sirringhaus
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Journal Title
Physical Review Letters
Volume: 107
Issue: 6
Pages: 66601-66601
DOI
Related Report
Peer Reviewed
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