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Nanomaterials 2019, 9(4), 571; https://doi.org/10.3390/nano9040571

Synthesis Procedure of Highly Densely Packed Carbon Nanotube Forests on TiN

1
Laboratory of Coatings and Nanostructures, Department of Applied Physics, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
2
Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, 28049 Madrid, Spain
3
Nanomaterials Research Group, Department of Chemistry, Universidad Ana G. Méndez-Gurabo Campus, 189 St. Rd. km 3.3, Gurabo, PR 00778, USA
*
Authors to whom correspondence should be addressed.
Received: 3 March 2019 / Revised: 30 March 2019 / Accepted: 2 April 2019 / Published: 8 April 2019
(This article belongs to the Special Issue The Synthesis and Applications of Carbon Nanotubes)
PDF [1000 KB, uploaded 8 April 2019]

Abstract

The goal of this research was to obtain high-density single-walled carbon nanotube forests (SWNTs) on conductive substrates for different applications, including field emission. For this, dip-coating was chosen as the catalyst deposition method, to subsequently grow SWNTs by Alcohol Catalytic Chemical Vapor Deposition (AC-CVD). Si (100) was chosen as the substrate, which was then coated with a TiN thin film. By sputtering with Ar, it was possible to generate alternating TiN and Si lanes, with a different wettability and, therefore, a different affinity for the catalysts. As a result, the Mo‒Co catalyst was mainly deposited on TiN and not on sputtered-Si, which allowed the selective growth of SWNT forests on the TiN conductive surfaces. These as-synthesized SWNTs were used for field emission measurements in a high vacuum chamber.
Keywords: TiN; SWNT; AC-CVD; Mo‒Co catalysts; field emission TiN; SWNT; AC-CVD; Mo‒Co catalysts; field emission
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Campo, T.; Pinilla, S.; Gálvez, S.; Sanz, J.M.; Márquez, F.; Morant, C. Synthesis Procedure of Highly Densely Packed Carbon Nanotube Forests on TiN. Nanomaterials 2019, 9, 571.

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