Fabrication and characterization of suspended single-walled carbon nanotubes

Byung Seok Oh, Yo Sep Min, Eun Ju Bae, Wanjun Park, Young Keun Kim

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    Suspended single-walled carbon nanotubes (SWCNTs) between SiO2 pillars via a direct lithographic route using a simple mixture of catalyst precursor [Co(III) acetylacetonate, Co(acac)3] and conventional electron beam resist (ma-N2403) were fabricated. The catalytic electron beam resist (Cat-ER) layer plays dual roles as a catalyst and a resist layer for the growth and alignment of CNTs, respectively. The structure of the grown nanotube was characterized by Raman spectroscopy (633 nm laser excitation). Nanotubes grown from Cat-ER with Co(acac)3 show the typical Raman spectra of SWCNTs which are characterized by the strong tangential bands near to 1590 cm-1 and radial breathing modes (RBMs) in the low frequency region (<300 cm-1). The calculated diameter of the probed nanotubes individually corresponds to the range 0.86-1.77 nm.

    Original languageEnglish
    Pages (from-to)186-190
    Number of pages5
    JournalSolid State Communications
    Volume139
    Issue number4
    DOIs
    Publication statusPublished - 2006 Jul

    Bibliographical note

    Funding Information:
    This work was supported by the Korean Ministry of Science and Technology through the Tera-level Nano Devices (TND) Program.

    Keywords

    • A. Carbon nanotube
    • B. Suspended nanotube
    • C. Raman spectroscopy
    • D. Electron beam lithography

    ASJC Scopus subject areas

    • General Chemistry
    • Condensed Matter Physics
    • Materials Chemistry

    Fingerprint

    Dive into the research topics of 'Fabrication and characterization of suspended single-walled carbon nanotubes'. Together they form a unique fingerprint.

    Cite this