期刊
NANOTECHNOLOGY
卷 17, 期 11, 页码 2752-2757出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/17/11/007
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We examine the morphological and electrical characteristics of nanowires fabricated on DNA templates via palladium (Pd) reduction. lambda-DNA molecules were stretched and aligned on a mica surface using a molecular combing technique, followed by an electroless deposition of palladium, resulting in formation of nanowires with nominal width of 7 nm. We investigated the size distribution of nanowires with atomic force microscopy and made electrical connections to the wires by metal evaporation through multiple shadow masks. Electrical characterization of the nanowires under various bias conditions, variable temperature, and with different contact metal work functions revealed a conduction mechanism resembling that of granular metals.
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