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Electron transport ...
Electron transport in self-assembled polymer molecular junctions
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- Hu, W. (author)
- Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing
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- Jiang, Jun (author)
- KTH,Teoretisk kemi
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- Nakashima, H. (author)
- NTT Basic Research Laboratories, Atsugi, Kanagawa
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- Luo, Yi (author)
- KTH,Teoretisk kemi
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- Kashimura, Y. (author)
- NTT Basic Research Laboratories, Atsugi, Kanagawa
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- Chen, K.-Q. (author)
- Department of Physics, Hunan University, Changsha, China
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- Shuai, Z. (author)
- Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing
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- Furukawa, K. (author)
- NTT Basic Research Laboratories, Atsugi, Kanagawa
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- Lu, W. (author)
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai
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- Liu, Y. (author)
- Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing
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- Zhu, D. (author)
- Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing
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- Torimitsu, K. (author)
- NTT Basic Research Laboratories, Atsugi, Kanagawa
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(creator_code:org_t)
- 2006
- 2006
- English.
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In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 96:2, s. 027801-
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Abstract
Subject headings
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- A molecular junction of a poly(p-phenyleneethynylene)s derivative with thioacetate end groups (TA-PPE) was fabricated by self-assembling. Nanogap electrodes made by electroplating technique was used to couple thiol end groups of TA-PPE molecules. Room temperature current-voltage characteristics of the molecular junction exhibited highly periodic, repeatable, and identical stepwise features. First-principles calculations suggest that one possibility for the equidistant step is due to the opening of different conducting channels that corresponds to the unoccupied molecular orbitals of the polymer in the junction. It is interesting to see that an 18 nm long polymer is of quantized electronic structures and behaves like a quantum transport device.
Subject headings
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Keyword
- Electrodes; Electroplating; Molecular dynamics; Nanostructured materials; Polymers; Self assembly; Current-voltage; Molecular junction; Quantized electronic structures; Thioacetate end groups (TA-PPE); Electron transport properties
- Molecular biology
- Molekylärbiologi
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Hu, W.
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Jiang, Jun
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Nakashima, H.
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Luo, Yi
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Kashimura, Y.
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Chen, K.-Q.
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Shuai, Z.
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Furukawa, K.
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Lu, W.
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Liu, Y.
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Zhu, D.
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Torimitsu, K.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Biochemistry and ...
- Articles in the publication
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Physical Review ...
- By the university
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Royal Institute of Technology