2012 Fiscal Year Final Research Report
Study of new functions of highly elaborated p-space molecules by scanning tunneling microscope
| Project Area | Emergence of highly elaborated pai-space and its function |
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| Project/Area Number |
20108011
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
MAJIMA Yutaka 東京工業大学, 応用セラミックス研究所, 教授 (40293071)
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| Project Period (FY) |
2008 – 2012
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| Keywords | TM / ポルフィリン / 共鳴トンネルダイオード |
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| Research Abstract |
Tribenzosubporphyrins are boron(III)-chelated triangular bowl-shaped ring-contracted porphyrins that possess a 14π -aromatic circuit. When using a W scanning tunneling microscopy (STM) tip doped with pre-adsorbed tribenzosubporphine-cation, negative differential resistance (NDR) phenomena were clearly observed in a reproducible manner with a peak-to-valley ratio of 2.6, a value confirmed by spatial mapping conductance measurements. Collectively, the observed NDR phenomena have been attributed to effective molecular resonant tunneling between a neutral tribenzosubporphine anchored to the metal surface and a W tip-doped with pre-adsorbed tribenzosubporphine cation.
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Research Products
(37 results)
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[Presentation] Molecular Resonant Tunneling Diodes2011
Author(s)
Yutaka Majima, Daisuke Ogawa, Masachika Iwamoto, Yasuo Azuma, Norio Okabayashi, Eiji Tsurumaki, Atsuhiro Osuka
Organizer
3^<rd> International Symposium on Emergence of Highly Elaborated π-Space and its Function
Place of Presentation
Ibaraki, Japan
Year and Date
20111118-19
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