2013 Fiscal Year Final Research Report
Molecular Patterning by Crystal Contacting Method
| Project/Area Number |
24655111
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Functional materials chemistry
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| Research Institution | Hokkaido University |
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Principal Investigator |
SADA KAZUKI 北海道大学, 理学(系)研究科(研究院), 教授 (80225911)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 結晶スタンプ法 / STM / 有機結晶 / 分子パターン / 自己組織化膜 / 転写 / ジスルフィド / 金基板 |
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| Research Abstract |
Development of microfabricated substrates has been paid much attention because of their potential applications in nanoelectronic devices. In this research, we propose a new printing method to construct monolayers on Au substrate by dry contact with organic crystals, so-called organic crystal stamp. In all cases of disulfide compounds as "inks" for stamp, the height images of scanning tunneling microscopy (STM) showed the formation of monolayer after contacting organic crystals. The surface molecular patterns were different and dependent on the employed compounds. Among them,L- cystine exhibited the similar molecular arrangement to that of the (100) surface of its hexagonal form. From this observation, we conclude that the molecular pattern of the organic crystal could transfer to Au(111) surface by dry solid-substrate contact. Our method provides a potential low cost technique to construct fine patterns with molecular level resolution.
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Research Products
(7 results)
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[Presentation] Transcription of molecules to Au surface using organic crystal stamp2012
Author(s)
Kasumi Nakamura, Kenta Kokado, Kazuki Sada
Organizer
Challenges in Advances Chemistry of Asia Frontier Chemistry Center (FCC) International Symposium, 8th Hokkaido Univ.-Nanjing Univ. Joint Symposium, 15th Hokkaido Univ.-Seoul National Univ. Joint Symposium, 2012 HU-NU-SNU-NIMS/MANA Joint Symposium
Place of Presentation
Hokkaido University, Sapporo
Year and Date
20121206-07
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