Encapsulation of segmented Pd-Co nanocomposites into vertically aligned carbon nanotubes by plasma-hydrogen-induced demixing

Takeshi Fujita, Yasuhiko Hayashi, Tomoharu Tokunaga, T. Butler, N. L. Rupesinghe, K. B K Teo, G. A J Amaratunga

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Vertically aligned carbon nanotubes (VA-CNTs) filled with Pd-Co nanocomposites on an Si substrate have been synthesized by microwave plasma-enhanced chemical vapor deposition. It was confirmed that adjacent Pd-Co nanocomposites in the VA-CNTs were compositionally separated. Most CNTs contained Co pillars on top; however, Pd pillars were rarely present. The strong magnetic induction from an individual Co pillar was revealed by electron holography. The simultaneous phenomenon of the demixing by plasma hydrogen irradiation and the preferential encapsulation into CNTs realized the unique Pd-Co nanocomposites.

Original languageEnglish
Article number133116
JournalApplied Physics Letters
Volume90
Issue number13
DOIs
Publication statusPublished - 2007
Externally publishedYes

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hydrogen plasma
nanocomposites
carbon nanotubes
magnetic induction
holography
vapor deposition
microwaves
irradiation
electrons

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Encapsulation of segmented Pd-Co nanocomposites into vertically aligned carbon nanotubes by plasma-hydrogen-induced demixing. / Fujita, Takeshi; Hayashi, Yasuhiko; Tokunaga, Tomoharu; Butler, T.; Rupesinghe, N. L.; Teo, K. B K; Amaratunga, G. A J.

In: Applied Physics Letters, Vol. 90, No. 13, 133116, 2007.

Research output: Contribution to journalArticle

Fujita, Takeshi ; Hayashi, Yasuhiko ; Tokunaga, Tomoharu ; Butler, T. ; Rupesinghe, N. L. ; Teo, K. B K ; Amaratunga, G. A J. / Encapsulation of segmented Pd-Co nanocomposites into vertically aligned carbon nanotubes by plasma-hydrogen-induced demixing. In: Applied Physics Letters. 2007 ; Vol. 90, No. 13.
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