2010
DOI: 10.1016/j.carbon.2009.11.053
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Temperature and time dependence study of single-walled carbon nanotube growth by catalytic chemical vapor deposition

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Cited by 30 publications
(30 citation statements)
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“…The D band is theoretically non-active in Raman scattering but is activated in the presence of defects through a double resonance process involving the elastic scattering of electrons by defects [12,13]. The I G /I D ratio has been widely used to estimate the density of defects in nanotubes and graphene [12][13][14][15][16]. When the average distance between defects (L D ) in graphene is larger than a few nm, the ratio I G /I D is inversely proportional to the surface density of defects () following the relation:…”
Section: Introductionmentioning
confidence: 99%
“…The D band is theoretically non-active in Raman scattering but is activated in the presence of defects through a double resonance process involving the elastic scattering of electrons by defects [12,13]. The I G /I D ratio has been widely used to estimate the density of defects in nanotubes and graphene [12][13][14][15][16]. When the average distance between defects (L D ) in graphene is larger than a few nm, the ratio I G /I D is inversely proportional to the surface density of defects () following the relation:…”
Section: Introductionmentioning
confidence: 99%
“…A phenomenological kinetic model was developed by Latorre et al [12] , which included all relevant steps involved in CNT growth by catalytic CVD, namely, carbon source decomposition, nanoparticle surface understanding of the elementary steps involved in the production of CNTs so as to derive a phenomenological kinetic model. They found that the best models involved [7] , (B) Khedr et al [8] , (C) Wirth et al [11] , (D) Kwok et al [13] , (E) Raji et al [16] , (F) Samandari-Masouleh et al [14] . Reproduced with permission from Elsevier (A, B, D, E) and the American Chemical Society (C, F).…”
Section: Referencesmentioning
confidence: 99%
“…carburization, carbon diffusion, nucleation, CNT growth and growth termination by catalyst deactivation or by the effect of steric hindrance. A recent investigation on the temperature and time dependence of SWCNT growth by CVD performed by Kwok et al [13] identified SWCNT growth within a relatively narrow temperature window of 700 -850 ° C, with an optimum growth time of 35 min for the cold wall reactor and 75 min for the quartz tube reactor. It was also revealed from the G/D band ratio of the Raman spectrum that when the temperature increased and time progressed, the diameter of the nanotube increased, as shown in Figures 2D and 3D.…”
Section: Referencesmentioning
confidence: 99%
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