Field-Emission Behavior of a Carbon-Nanotube-Implanted Co Nanocomposite Fabricated from Pearl-Necklace-Structured Carbon Nanotube/Co Powders

Pearl‐necklace‐structured CNT/Co nanocomposite powders, with spherical Co nanoparticles threaded by penetrating CNTs, have been fabricated using a molecular process. The nanocomposite powders have been screen‐printed and sintered into CNT‐implanted Co nanocomposite emitters, with the CNTs standing u...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2006-03, Vol.18 (5), p.553-558
Main Authors: Cha, S. I., Kim, K. T., Arshad, S. N., Mo, C. B., Lee, K. H., Hong, S. H.
Format: Article
Language:English
Subjects:
Carbon nanotubes
Field emission
metal
Nanocomposites
Nanoparticles
Nanoparticles, metal
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Summary:Pearl‐necklace‐structured CNT/Co nanocomposite powders, with spherical Co nanoparticles threaded by penetrating CNTs, have been fabricated using a molecular process. The nanocomposite powders have been screen‐printed and sintered into CNT‐implanted Co nanocomposite emitters, with the CNTs standing upright on the surface of the substrate. The CNT‐implanted Co nanocomposite emitters show outstanding field‐emission behavior, including a low turn‐on electric field and high current density.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200501267