Improvement of conductivity in graphene by Ag nanowires under a non-uniform electric field

Geonyeop Lee, Sooyeoun Oh, Byung Jae Kim, Ji Hyun Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We demonstrated the precise positioning of silver nanowires (AgNWs) assisted by a non-uniform electric field to improve the sheet resistance of a graphene layer. The distribution of AgNWs aligned by dielectrophoretic force at a peak-to-peak voltage of 20 V was well matched to the results of the finite element method calculation. The sheet resistance of graphene obtained by the circular transmission line method was improved by the controlled integration with AgNWs. Effects of thermal annealing on the graphene-AgNW hybrid structures were also systematically characterized, demonstrating decreases in the sheet resistance by up to 20%. The results from our study suggest that the conductivity of graphene can be locally tailored by positioning AgNWs using dielectrophoresis.

Original languageEnglish
Pages (from-to)M41-M44
JournalECS Solid State Letters
Volume3
Issue number12
DOIs
Publication statusPublished - 2014

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Graphene
Nanowires
Sheet resistance
Electric fields
Electrophoresis
Silver
Electric lines
Annealing
Finite element method
Electric potential

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Improvement of conductivity in graphene by Ag nanowires under a non-uniform electric field. / Lee, Geonyeop; Oh, Sooyeoun; Kim, Byung Jae; Kim, Ji Hyun.

In: ECS Solid State Letters, Vol. 3, No. 12, 2014, p. M41-M44.

Research output: Contribution to journalArticle

Lee, Geonyeop ; Oh, Sooyeoun ; Kim, Byung Jae ; Kim, Ji Hyun. / Improvement of conductivity in graphene by Ag nanowires under a non-uniform electric field. In: ECS Solid State Letters. 2014 ; Vol. 3, No. 12. pp. M41-M44.
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