ALD/MLD coating of patterned vertically aligned carbon nanotube micropillars with Fe-NH2TP hybrids

• Published in: Nanoscale Vol. 15; no. 24; pp. 10423 - 10429
• Main Authors: Silva, R M, Rocha, J, Silva, R F
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 23.06.2023
• Subjects: Atomic layer epitaxy; Carbon nanotubes; Contact angle; Fourier transforms; High resolution electron microscopy; Iron; Scanning transmission electron microscopy; Transmission electron microscopy
• ISSN: 2040-3364; 2040-3372
• DOI: 10.1039/d3nr01610b

The creation of nanoscale organic–inorganic hybrid coatings with uniform architecture and high surface area, while maintaining their structural and morphological integrity, remains a significant challenge in the field. In this study, we present a novel solution, by utilizing Atomic/Molecular Layer Deposition (ALD/MLD) to coat patterned vertically aligned carbon nanotube micropillars with a conformal amorphous layer of Fe-NH2TP, which is a trivalent iron complex complexed with 2-amino terephthalate. The effectiveness of the coating is verified through multiple analytical techniques, including high-resolution transmission electron microscopy, scanning transmission electron microscopy, grazing incidence X-ray diffraction, and Fourier transform infrared spectroscopy. The Fe-NH2TP hybrid film exhibits hydrophobic properties, as confirmed by water contact angle measurements. Our findings contribute to advancing the understanding of how to grow high-quality one-dimensional materials using ALD/MLD and hold promise for future research in this area.