Microstructure analyses of metal-filled carbon nanotubes synthesized by microwave plasma-enhanced chemical vapour deposition

Yasuhiko Hayashi, T. Tokunaga, K. Kaneko, S. J. Henley, V. Stolojan, J. D. Carey, S. R P Silva

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Pd/Co-based metal-filled carbon nanotubes (MF-CNTs) were synthesized by a microwave plasma-enhanced chemical vapour deposition method using a bias-enhanced growth technique. Pd/Co-based MF-CNTs were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) electron energy loss spectroscopy (EELS), and Raman spectroscopy. MF-CNTs were well-aligned and uniform in size on a Si substrate. Both multiwall nanotube carbon nanotubes (CNTs) and herringbone (or stacked cups structure) structures were observed. High-resolution TEM revealed that MF-CNTs were composed of highly ordered graphite layers, and the elemental maps of EELS indicate that both Co and Pd metals are present inside the nanotubes. TEM results clearly showed that both Pd and Co metals were successfully encapsulated into the CNTs.. We observed a low value for the Raman intensity ratio between D (1355 cm-1) and G (1590 cm-1) bands with no shift of the G-peak position and no broadening of the G-peak, indicative of high quality Pd/Co-based MF-CNTs. Based on TEM characterization, we propose a description for the encapsulating mechanisms.

Original languageEnglish
Title of host publicationNanoSingapore 2006: IEEE Conference on Emerging Technologies - Nanoelectronics - Proceedings
Pages93-98
Number of pages6
Volume2006
DOIs
Publication statusPublished - 2006
Externally publishedYes
Event2006 IEEE Conference on Emerging Technologies - Nanoelectronics - Singapore, Singapore
Duration: Jan 10 2006Jan 13 2006

Other

Other2006 IEEE Conference on Emerging Technologies - Nanoelectronics
CountrySingapore
CitySingapore
Period1/10/061/13/06

Fingerprint

Plasma enhanced chemical vapor deposition
Carbon nanotubes
Microwaves
Microstructure
Metals
Electron energy loss spectroscopy
Transmission electron microscopy
Nanotubes
High resolution transmission electron microscopy
Raman spectroscopy
Graphite
Scanning electron microscopy
Substrates

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Hayashi, Y., Tokunaga, T., Kaneko, K., Henley, S. J., Stolojan, V., Carey, J. D., & Silva, S. R. P. (2006). Microstructure analyses of metal-filled carbon nanotubes synthesized by microwave plasma-enhanced chemical vapour deposition. In NanoSingapore 2006: IEEE Conference on Emerging Technologies - Nanoelectronics - Proceedings (Vol. 2006, pp. 93-98). [1609696] https://doi.org/10.1109/NANOEL.2006.1609696

Microstructure analyses of metal-filled carbon nanotubes synthesized by microwave plasma-enhanced chemical vapour deposition. / Hayashi, Yasuhiko; Tokunaga, T.; Kaneko, K.; Henley, S. J.; Stolojan, V.; Carey, J. D.; Silva, S. R P.

NanoSingapore 2006: IEEE Conference on Emerging Technologies - Nanoelectronics - Proceedings. Vol. 2006 2006. p. 93-98 1609696.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hayashi, Y, Tokunaga, T, Kaneko, K, Henley, SJ, Stolojan, V, Carey, JD & Silva, SRP 2006, Microstructure analyses of metal-filled carbon nanotubes synthesized by microwave plasma-enhanced chemical vapour deposition. in NanoSingapore 2006: IEEE Conference on Emerging Technologies - Nanoelectronics - Proceedings. vol. 2006, 1609696, pp. 93-98, 2006 IEEE Conference on Emerging Technologies - Nanoelectronics, Singapore, Singapore, 1/10/06. https://doi.org/10.1109/NANOEL.2006.1609696
Hayashi Y, Tokunaga T, Kaneko K, Henley SJ, Stolojan V, Carey JD et al. Microstructure analyses of metal-filled carbon nanotubes synthesized by microwave plasma-enhanced chemical vapour deposition. In NanoSingapore 2006: IEEE Conference on Emerging Technologies - Nanoelectronics - Proceedings. Vol. 2006. 2006. p. 93-98. 1609696 https://doi.org/10.1109/NANOEL.2006.1609696
Hayashi, Yasuhiko ; Tokunaga, T. ; Kaneko, K. ; Henley, S. J. ; Stolojan, V. ; Carey, J. D. ; Silva, S. R P. / Microstructure analyses of metal-filled carbon nanotubes synthesized by microwave plasma-enhanced chemical vapour deposition. NanoSingapore 2006: IEEE Conference on Emerging Technologies - Nanoelectronics - Proceedings. Vol. 2006 2006. pp. 93-98
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AU - Stolojan, V.

AU - Carey, J. D.

AU - Silva, S. R P

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AB - Pd/Co-based metal-filled carbon nanotubes (MF-CNTs) were synthesized by a microwave plasma-enhanced chemical vapour deposition method using a bias-enhanced growth technique. Pd/Co-based MF-CNTs were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) electron energy loss spectroscopy (EELS), and Raman spectroscopy. MF-CNTs were well-aligned and uniform in size on a Si substrate. Both multiwall nanotube carbon nanotubes (CNTs) and herringbone (or stacked cups structure) structures were observed. High-resolution TEM revealed that MF-CNTs were composed of highly ordered graphite layers, and the elemental maps of EELS indicate that both Co and Pd metals are present inside the nanotubes. TEM results clearly showed that both Pd and Co metals were successfully encapsulated into the CNTs.. We observed a low value for the Raman intensity ratio between D (1355 cm-1) and G (1590 cm-1) bands with no shift of the G-peak position and no broadening of the G-peak, indicative of high quality Pd/Co-based MF-CNTs. Based on TEM characterization, we propose a description for the encapsulating mechanisms.

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