Low temperature growth of ultra-high mass density carbon nanotube forests on conductive supports

Hisashi Sugime, Santiago Esconjauregui, Junwei Yang, Lorenzo D'Arsié, Rachel A. Oliver, Sunil Bhardwaj, Cinzia Cepek, John Robertson

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Abstract

We grow ultra-high mass density carbon nanotube forests at 450°C on Ti-coated Cu supports using Co-Mo co-catalyst. X-ray photoelectron spectroscopy shows Mo strongly interacts with Ti and Co, suppressing both aggregation and lifting off of Co particles and, thus, promoting the root growth mechanism. The forests average a height of 0.38 μm and a mass density of 1.6 g cm -3. This mass density is the highest reported so far, even at higher temperatures or on insulators. The forests and Cu supports show ohmic conductivity (lowest resistance ∼22 kΩ), suggesting Co-Mo is useful for applications requiring forest growth on conductors.

Original languageEnglish
Article number073116
JournalApplied Physics Letters
Volume103
Issue number7
DOIs
Publication statusPublished - 2013 Aug 12

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Sugime, H., Esconjauregui, S., Yang, J., D'Arsié, L., Oliver, R. A., Bhardwaj, S., Cepek, C., & Robertson, J. (2013). Low temperature growth of ultra-high mass density carbon nanotube forests on conductive supports. Applied Physics Letters, 103(7), [073116]. https://doi.org/10.1063/1.4818619