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Title: Synthesis of vertically aligned carbon nanotubes on metal deposited quartz plates
Authors: Zhang, W.D.
Wen, Y.
Min Liu, S.
Tjiu, W.C.
Qin Xu, G. 
Ming Gan, L.
Keywords: A. Carbon nanotubes
B. Chemical vapor deposition
C. Scanning electron microscopy, Transmission electron microscopy
Issue Date: Sep-2002
Source: Zhang, W.D.,Wen, Y.,Min Liu, S.,Tjiu, W.C.,Qin Xu, G.,Ming Gan, L. (2002-09). Synthesis of vertically aligned carbon nanotubes on metal deposited quartz plates. Carbon 40 (11) : 1981-1989. ScholarBank@NUS Repository.
Abstract: Without plasma aid, we have successfully synthesized vertically aligned carbon nanotubes (CNTs) on iron-, cobalt- or nickel-deposited quartz plates by chemical vapor deposition with ethylenediamine as a precursor. The amine serves as both etching reagent for the formation of metal nanoparticles and carbon source for the growth of aligned carbon nanotubes. The carbon nanotubes were vertically aligned in high density on a large area of the plain silica substrates. The density and diameter of CNTs is determined by the thickness of the deposited metal film and the length of the tubes can be controlled by varying the reaction time. High-resolution transmission electron microscopy analysis reveals that the synthesized CNTs are multiwalled with a bamboo-like structure. Energy dispersive X-ray spectra demonstrate that the CNTs are formed as tip growths. Raman spectrum provides definite evidence that the prepared CNTs are multiwalled graphitic structure. © 2002 Elsevier Science Ltd. All rights reserved.
Source Title: Carbon
ISSN: 00086223
DOI: 10.1016/S0008-6223(02)00052-0
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