Hot-wire chemical vapor deposition of carbon nanotubes

• Published in: Thin solid films Vol. 430; no. 1; pp. 292 - 295
• Main Authors: Dillon, A.C., Mahan, A.H., Alleman, J.L., Heben, M.J., Parilla, P.A., Jones, K.M.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Lausanne Elsevier B.V 22-04-2003; Elsevier Science
• Subjects: Carbon multi-wall nanotubes (MWNTs); Carbon single-wall nanotubes (SWNTs); Chemical vapor deposition (including plasma-enhanced cvd, mocvd, etc.); Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Ferrocene; Hot-wire chemical vapor deposition (HWCVD); Materials science; Methods of deposition of films and coatings; film growth and epitaxy; Nanoscale materials and structures: fabrication and characterization; Physics; Carbon multi-wall nanotubes (MWNTs); Hot-wire chemical vapor deposition (HWCVD); Carbon single-wall nanotubes (SWNTs); Ferrocene; Singlewalled nanotubes; Graphite structure; Nanotubes; Crystal growth from vapors; Experimental study; Carbon; Hot wire; CVD; Multiwalled nanotubes; Nonmetals; Nanostructured materials; Structural analysis
• ISSN: 0040-6090; 1879-2731
• DOI: 10.1016/S0040-6090(03)00084-1

Hot-wire chemical vapor deposition (HWCVD) has been employed for the continuous gas-phase generation of both carbon multi-wall and single-wall nanotube (MWNT and SWNT) materials. Graphitic MWNTs were produced at a very high density at a synthesis temperature of ∼600 °C. SWNTs were deposited at a much lower density on a glass substrate held at 450 °C. SWNTs are typically observed in large bundles that are stabilized by tube–tube van der Waals’ interactions. However, transmission electron microscopy analyses revealed only the presence of isolated SWNTs in these HWCVD-generated materials.