Fabrication and temperature-dependent electrical characterization of a C-shape nanowire patterned by a DNA origami

Journal article (2021)

Authors

Türkan Bayrak Technische Universität Dresden
A. Martinez Reyes Organisation & Governance - TPM , Universidad Nacional Autónoma de México
David Daniel Ruiz Arce Universidad Nacional Autónoma de México
Enrique C. Samano Universidad Nacional Autónoma de México
Artur Erbe Technische Universität Dresden
Research Group
Organisation & Governance (TPM) (TU Delft)
Copyright: © 2021 Türkan Bayrak, A. Martinez Reyes, David Daniel Ruiz Arce, Jeffrey Kelling, Enrique C. Samano, Artur Erbe
DOI
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https://doi.org/10.1038/s41598-021-81178-8
More Info
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Published Date

2021

Language

English

Reuse Rights

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Faculty

Technology, Policy and Management

Department

Multi Actor Systems

Research Group

Organisation & Governance

Abstract

We introduce a method based on directed molecular self-assembly to manufacture and electrically characterise C-shape gold nanowires which clearly deviate from typical linear shape due to the design of the template guiding the assembly. To this end, gold nanoparticles are arranged in the desired shape on a DNA-origami template and enhanced to form a continuous wire through electroless deposition. C-shape nanowires with a size below 150nm on a SiO 2/ Si substrate are contacted with gold electrodes by means of electron beam lithography. Charge transport measurements of the nanowires show hopping, thermionic and tunneling transports at different temperatures in the 4.2K to 293K range. The different transport mechanisms indicate that the C-shape nanowires consist of metallic segments which are weakly coupled along the wires.