Direct observations of channel regions of electric double layer transistor using atomic force microsocopy
| Project/Area Number |
26410092
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Functional solid state chemistry
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| Research Institution | Institute of Physical and Chemical Research (2015-2017)
Osaka University (2014) |
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Principal Investigator |
Yokota Yasuyuki 国立研究開発法人理化学研究所, Kim表面界面科学研究室, 研究員 (00455370)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKEYA Jun-ichi 東京大学, 新領域創成科学研究科, 教授 (20371289)
UEMURA Takafumi 東京大学, 新領域創成科学研究科, 講師 (30448097)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 電気二重層トランジスタ / 原子間力顕微鏡 / イオン液体 / 有機半導体 / 古典分子動力学計算 / 界面構造 / 同時計測 |
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| Outline of Final Research Achievements |
To achieve high charge carrier densities with minimum applying voltages, electric double layer field effect transistors (EDL-FETs), where the conventional solid dielectrics are replaced with electrolytes such as ionic liquids (ILs) to form EDL at the electrolyte / semiconductor interface, have been intensively investigated. Microscopic understandings of the carrier transport and the long-term stability of EDL-FETs using ILs have been very limited due to the complexity of the IL / semiconductor interfaces. In this study, we directly visualized the interface using atomic force microscopy, revealing the relationship between the device performance and the step density of the semiconductor.
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Report
(5 results)
Research Products
(44 results)
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[Journal Article] Gradual Improvements of Charge Carrier Mobility at Ionic Liquid/Rubrene Single Crystal Interfaces2016
Author(s)
Yasuyuki Yokota, Hisaya Hara, Yusuke Morino, Ken-ichi Bando, Sakurako Ono, Akihito Imanishi, Yugo Okada, Hiroyuki Matsui, Takafumi Uemura, Jun Takeya, Ken-ichi Fukui
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Journal Title
Appl. Phys. Lett.
Volume: 108
Issue: 8
Pages: 083113-083113
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] Spontaneous Hole Mobility Increase for Organic Field Effect Transistor Using Ionic Liquid/Pentacene Single Crystal Interface2015
Author(s)
Sakurako Ono, Ken-ichi Bando, Yusuke Morino, Hisaya Hara, Akihito Imanishi, Yasuyuki Yokota, Yugo Okada, Hiroyuki Matsui, Takafumi Uemura, Hiroyuki Matsui, Jun Takeya, Ken-ichi Fukui
Organizer
3rd Kansai Nanoscience and Nanotechnology International Symposium
Place of Presentation
大阪大学(大阪府吹田市)
Year and Date
2015-12-07
Related Report
Int'l Joint Research
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[Presentation] Structural Investigations of Electric Double Layer Transistors: Relation between Microscopic Structures and Device Performances2014
Author(s)
Yasuyuki Yokota, Hisaya Hara, Tomohiro Harada, Yusuke Morino, Ken-ichi Bando, Akihito Imanishi, Yugo Okada, Hiroyuki Matsui, Takafumi Uemura, Jun Takeya, Ken-ichi Fukui
Organizer
The 1st International Symposium on Interactive Materials Science Cadet Program (iSIMSC)
Place of Presentation
Suita
Year and Date
2014-11-16 – 2014-11-19
Related Report
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