Elucidating structure-property relations under mechanical strain in organic semiconductors for device applications
| Project/Area Number |
26246011
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied materials
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TAKEYA Junichi 東京大学, 大学院新領域創成科学研究科, 教授 (20371289)
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| Co-Investigator(Kenkyū-buntansha) |
宍戸 厚 東京工業大学, 資源化学研究所, 准教授 (40334536)
大島 義文 北陸先端科学技術大学院大学, マテリアルサイエンス研究科, 准教授 (80272699)
松井 弘之 東京大学, 新領域創成科学研究科, 助教 (80707357)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥41,990,000 (Direct Cost: ¥32,300,000、Indirect Cost: ¥9,690,000)
Fiscal Year 2016: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2015: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2014: ¥22,100,000 (Direct Cost: ¥17,000,000、Indirect Cost: ¥5,100,000)
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| Keywords | 高移動度有機半導体 / 単結晶有機薄膜 / 有機トランジスタ / 有機・分子エレクトロニクス / 有機半導体 |
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| Outline of Final Research Achievements |
We have found that electrical conductivity (mobility) greatly changes with the application of external force to the organic semiconductor crystal, and proved that this phenomenon depends on crystal structure change due to the external force. The detailed correlation between the external stress and the structural property is analyzed by X-ray structural analysis, Hall effect measurement, temperature dependence measurement and calculation of molecular oscillation amplitude. It turned out that the effect is dominantly attributed to reduced molecular vibration rather than t shrinking the intermolecular distance. Based on the obtained physical property, we developed a technology to build a strain sensor with the single-crystal semiconductor films. We found that the sensitivity is more than one-order-of-magnitude higher than conventional devices, indicating definite advantage of the present organic single-crystal strain sensors.
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Report
(4 results)
Research Products
(26 results)
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[Journal Article] Suppressing molecular vibrations in organic semiconductors by inducing strain2016
Author(s)
T. Kubo, R. Haeusermann, J. Tsurumi, J. Soeda, Y. Okada, Y. Yamashita, N. Akamatsu, A. Shishido, C. Mitsui, T. Okamoto, S. Yanagisawa, H. Matsui, and J. Takeya
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Journal Title
Nature Communications
Volume: 7
Issue: 1
Pages: 11156-11156
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Transition Between Band and Hopping Transport in Polymer Field-Effect Transistors2014
Author(s)
Y. Yamashita, J. Tsurumi, F. Hinkel, Y. Okada, J. Soeda, W. Zajaczkowski, M. Baumgarten, W. Pisula, H. Matsui, K. Mullen, J. Takeya
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Journal Title
Advanced Materials
Volume: 26
Issue: 48
Pages: 8169-8173
DOI
Related Report
Peer Reviewed
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[Presentation] 歪み有機単結晶トランジスタの温度依存性とホール効果測定2016
Author(s)
窪孝祥, 鶴見淳人, Roger H usermann, 渡邉峻一郎, 赤松範久, 宍戸厚, 三津井親彦, 岡本敏宏, 柳澤将, 松井弘之, 竹谷純一
Organizer
日本物理学会第71回年次大会
Place of Presentation
東北学院大学（泉キャンパス）
Year and Date
2016-03-21
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