Electrical conduction in 7 nm wires constructed on λ-DNA

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...

Full description

Saved in:
Bibliographic Details
Published in:Nanotechnology 2006-06, Vol.17 (11), p.2752-2757
Main Authors: Lund, John, Dong, Jianchun, Deng, Zhaoxiang, Mao, Chengde, Parviz, Babak A
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/17/11/007