Design of crystal surface electronic functionality by chemical charge injection
| Project/Area Number |
26288029
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial 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 | Hokkaido University |
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Principal Investigator |
INABE TAMOTSU 北海道大学, 理学(系)研究科(研究院), 教授 (20168412)
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| Co-Investigator(Renkei-kenkyūsha) |
Harada Jun 北海道大学, 大学院理学研究院, 准教授 (00313172)
TAKAHASHI Yukihiro 北海道大学, 大学院理学研究院, 助教 (40443197)
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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 |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2014: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
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| Keywords | 分子性結晶 / 電荷注入 / 電子機能化 |
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| Outline of Final Research Achievements |
We proposed contact-doping as a novel method of charge-injection. At the interface, pure charge-injection occurs in some cases, but in other cases molecular-complex-formation might occur at the same time.
When the substrate is single-component crystals, pure charge-injection occurs by contacting donor or acceptor crystals with a low vapor pressure. Even for the combination in which charge-injection is not expected to occur due to large difference between the redox potentials of the donor and acceptor, it has been found that the conductivity at the interface is increased. When the substrate is mixed-stacked TCNQ charge-transfer complexes with a neutral ground state, it has been found that conducting thin films of highly oriented nano-size TTF-TCNQ needle-crystals are formed by contacting a TTF vapor. When the substrate is segregated-stacked TCNQ anion radical crystals, it has been found that holes can be doped at the interface in the insulating state by contacting strong acceptors.
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Report
(4 results)
Research Products
(87 results)
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[Journal Article] Fabrication of Conducting Thin Films on the Surfaces of 7,7,8,8-Tetracyanoquinodimethane Single-Component and Charge-Transfer Complex Single Crystals: Nucleation, Crystal Growth, Morphology, and Charge Transport2016
Author(s)
Y. Takahashi, T. Mikasa, K. Hayakawa, S. Yokokura, H. Hasegawa, J. Harada and T. Inabe
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Journal Title
J. Phys. Chem. C
Volume: 120
Pages: 17537-17545
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] 有機結晶表面への強誘電性薄膜の作製2015
Author(s)
竹久美佳, 三笠仁裕, 高橋幸裕, 長谷川裕之, 原田潤, 稲辺保
Organizer
化学系学協会北海道支部2015年冬季研究発表会
Place of Presentation
北海道大学（札幌市）
Year and Date
2015-01-27 – 2015-01-28
Related Report
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[Presentation] 軸配位型金属ポルフィリン導電体作製の試み2014
Author(s)
黒川雅詩, 長谷川裕之, 高橋幸裕, 原田潤, 稲辺保
Organizer
第8回分子科学討論会 2014東広島
Place of Presentation
広島大学 東広島キャンパス（東広島市）
Year and Date
2014-09-21 – 2014-09-24
Related Report
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