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

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Türkan Bayrak - , Center for Advancing Electronics Dresden (cfaed), Helmholtz-Zentrum Dresden-Rossendorf (Author)
  • Amanda Martinez-Reyes - , Universidad Nacional Autónoma de México, Delft University of Technology (Author)
  • David Daniel Ruiz Arce - , Universidad Nacional Autónoma de México (Author)
  • Jeffrey Kelling - , Helmholtz-Zentrum Dresden-Rossendorf (Author)
  • Enrique C. Samano - , Universidad Nacional Autónoma de México (Author)
  • Artur Erbe - , Center for Advancing Electronics Dresden (cfaed), Helmholtz-Zentrum Dresden-Rossendorf (Author)

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.

Details

Original languageEnglish
JournalScientific reports
Volume11
Issue number1
Publication statusPublished - Dec 2021
Peer-reviewedYes

External IDs

PubMed 33479352

Keywords

ASJC Scopus subject areas