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Plasma enhanced chemical vapour deposition growth and physical properties of single-walled carbon nanotubes

Majeed Khan, M.A. ; Khan, Wasi ; Kumar, Avshish ; Alhazaa, Abdulaziz N.

Materials letters, 2018-05, Vol.219, p.269-272 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

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Título:
Plasma enhanced chemical vapour deposition growth and physical properties of single-walled carbon nanotubes
Autor: Majeed Khan, M.A. ; Khan, Wasi ; Kumar, Avshish ; Alhazaa, Abdulaziz N.
Assuntos: Catalytic activity ; Chemical synthesis ; Chemical vapor deposition ; Dyes ; Electron microscopy ; Light irradiation ; Methylene blue ; Nanotubes ; Organic chemistry ; PECVD ; Photocatalysis ; Photocatalytic activity ; Physical properties ; Physical vapor deposition ; Plasma enhanced chemical vapor deposition ; Silicon substrates ; Single wall carbon nanotubes ; Single walled carbon nanotubes ; Surface chemistry ; Surface defects ; Transistors
É parte de: Materials letters, 2018-05, Vol.219, p.269-272
Descrição: •High quality single-walled carbon nanotubes were grown on silicon substrate.•The structural, optical properties and photocatalytic activity were investigated.•The diameter of individual carbon nanotubes in the bundles was found ∼2 nm.•Excellent photocatalytic performance was observed under visible light irradiation. Present work focuses on the growth of single-walled carbon nanotubes (SWCNTs) using nickel as a catalyst onto the silicon substrate through plasma enhanced chemical vapour deposition (PECVD) method. As synthesised SWCNTs have been characterized by employing various analytical techniques like XRD, SEM, HR-TEM/EDS and UV-visible absorption spectroscopy. The HRTEM micrographs revealed that the SWCNTs were mostly entangled bundles with diameters of about 2 nm. The optical absorption data were used to estimate energy bandgap of the SWCNTs and found to be 2.67 eV. The photocatalytic performance of the nanotubes was examined by the deterioration of an organic dye methylene blue (MB) under visible light irradiation. The observed results exhibit excellent photocatalytic activity of the nanotubes that may be due to the large surface defects, surface area and small energy bandgap characteristics of the nanotubes.
Editor: Amsterdam: Elsevier B.V
Idioma: Inglês

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Plasma enhanced chemical vapour deposition growth and physical properties of single-walled carbon nanotubes

Majeed Khan, M.A. ; Khan, Wasi ; Kumar, Avshish ; Alhazaa, Abdulaziz N.

Amsterdam: Elsevier B.V

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