Step-templated CVD growth of aligned graphene nanoribbons supported by a single-layer graphene film

Hiroki Ago, Yoshito Ito, Masaharu Tsuji, Ken Ichi Ikeda

    Research output: Contribution to journalArticle

    23 Citations (Scopus)

    Abstract

    We present chemical vapor deposition (CVD) growth of a hybrid structure of aligned graphene nanoribbons (GNRs) supported by a single-layer graphene sheet. The step structure created on the epitaxial Co film is used to segregate arrays of aligned GNRs. Reflecting the highly ordered step structure of the Co catalyst, straight nanoribbons with high aspect ratio (>100) are formed. Analysis suggests that a large-area, single-layer graphene film also grows over the aligned GNRs, making a GNR-graphene hybrid structure. We also demonstrate the isolation of aligned GNRs by oxygen plasma treatment or partial transfer of the hybrid film. These findings on the formation of highly aligned GNRs give new insights into the formation mechanism of graphene and can be applied for more advanced graphene structure for future electronics.

    Original languageEnglish
    Pages (from-to)5178-5182
    Number of pages5
    JournalNanoscale
    Volume4
    Issue number16
    DOIs
    Publication statusPublished - Aug 21 2012

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)

    Fingerprint Dive into the research topics of 'Step-templated CVD growth of aligned graphene nanoribbons supported by a single-layer graphene film'. Together they form a unique fingerprint.

  • Cite this