In-situ transmission electron microscopy observation of electromigration in Au thin wires.

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  • Author(s): Murakami Y;Murakami Y; Arita M; Hamada K; Takahashi Y
  • Source:
    Journal of nanoscience and nanotechnology [J Nanosci Nanotechnol] 2012 Nov; Vol. 12 (11), pp. 8741-5.
  • Publication Type:
    Journal Article; Research Support, Non-U.S. Gov't
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: American Scientific Publishers Country of Publication: United States NLM ID: 101088195 Publication Model: Print Cited Medium: Print ISSN: 1533-4880 (Print) Linking ISSN: 15334880 NLM ISO Abbreviation: J Nanosci Nanotechnol Subsets: MEDLINE
    • Publication Information:
      Original Publication: Stevenson Ranch, CA : American Scientific Publishers, 2001-2021
    • Subject Terms:
      Electrons*; Gold/*chemistry ; Metal Nanoparticles/*chemistry ; Metal Nanoparticles/*ultrastructure ; Microscopy, Electron/*methods; Electric Conductivity ; Electron Transport ; Materials Testing ; Particle Size
    • Abstract:
      Electromigration of thin Au wire is studied by the use of in-situ transmission electron microscopy (TEM) techniques from the viewpoint of nanogap formation. We use a relatively wide Au wire as a starting material because the position-dependent structure change in the wire provides information of the thermal effect caused by the current flow. In-situ TEM observation, in which current measurements of the Au wire are simultaneously performed, reveals the process of the growth of voids and grains. Finally the formation of a nanogap by electromigration is observed doing with current measurements. All the results observed by in-situ TEM indicate the fact that the thermal effects or temperature increase in the wire region take an important role for the structure change caused by electromigration of Au in the wire. It is suggested that the position of the nanogap can roughly be arranged by setting the wire structure and current direction even though a relatively wide wire was used. The detailed observation by in-situ TEM also suggests that the control of heat generation in the wire makes the nanogap sharp because of the well-controlled recrystallization of Au nanowires.
    • Accession Number:
      7440-57-5 (Gold)
    • Publication Date:
      Date Created: 20130221 Date Completed: 20130404 Latest Revision: 20190715
    • Publication Date:
      20221213
    • Accession Number:
      10.1166/jnn.2012.6813
    • Accession Number:
      23421277