| The modification of the electrical property in double-walled carbon nanotube devices with a self-assembled monolayer of molecules. | |
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MedLine Citation:
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PMID: 19049024 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We have investigated the electrical transports of double-walled carbon nanotube field effect transistors (DWNT-FETs) with modified contacts. The CNT/Au metal contacts of DWNT-FETs were modified with a self-assembled monolayer of 2-aminoethanethiol molecules. In ambient air, the contact-modified DWNT-FETs showed a decreased conductance in the p-channel (negative gate voltages) and an increased conductance in the n-channel (positive gate voltages), while the original device showed p-type transport. In a vacuum, the n-channel current in the contact-modified DWNT-FET started to rise. We observed a clear n-type transport in the high vacuum. Almost no changes in the gate threshold voltages were observed by means of the contact-modification with a self-assembled monolayer. While the semiconducting DWNT-FET showed a clear transition from a p-type to n-type transistor with contact modification, no apparent changes were observed in semi-metallic DWNT devices. |
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Authors:
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Eun-Kyoung Jeon; Hyo-Suk Kim; Byoung-Kye Kim; Ju-Jin Kim; Jeong-O Lee; Cheol Jin Lee |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of nanoscience and nanotechnology Volume: 8 ISSN: 1533-4880 ISO Abbreviation: J Nanosci Nanotechnol Publication Date: 2008 Sep |
Date Detail:
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Created Date: 2008-12-03 Completed Date: 2008-12-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101088195 Medline TA: J Nanosci Nanotechnol Country: United States |
Other Details:
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Languages: eng Pagination: 4349-52 Citation Subset: - |
Affiliation:
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Department of Physics, Chonbuk National University, Jeonju 561-756, Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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