Synchrotron X-ray photoelectron spectroscopy and field emission of double-walled carbon nanotubes - Dependence on growth temperature

Shin Young Kim, Jin Young Lee, Jeunghee Park, Chan Jun Park, Cheol Jin Lee, Hyun Joon Shin

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    Double-walled carbon nanotubes (DWCNTs) were synthesized by using thermal chemical vapor deposition on MgO-supported Fe-Mo catalysts, in the temperature range 800-1000 °C. Outer diameters were 1.5-2 nm at all growth temperatures. As growth temperature was increased, C1s peaks of X-ray photoelectron spectroscopy became broader and valence band intensity increased due to stronger van der Waals interaction between DWCNTs induced by higher crystallinities. Field emission from the as-grown DWCNTs exhibited a large current density enhancement with increasing growth temperature.

    Original languageEnglish
    Pages (from-to)271-276
    Number of pages6
    JournalChemical Physics Letters
    Volume420
    Issue number4-6
    DOIs
    Publication statusPublished - 2006 Mar 21

    Bibliographical note

    Funding Information:
    This work was supported by KRF (R14-2003-033-01003-0; R02-2004-000-10025-0; 2003-015-C00265). SEM and TEM analysis were performed at the Korea Basic Science Institute (KBSI). Experiments at PLS were supported in part by MOST and POSTECH.

    ASJC Scopus subject areas

    • General Physics and Astronomy
    • Physical and Theoretical Chemistry

    Fingerprint

    Dive into the research topics of 'Synchrotron X-ray photoelectron spectroscopy and field emission of double-walled carbon nanotubes - Dependence on growth temperature'. Together they form a unique fingerprint.

    Cite this