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PECVD growth of carbon nanotubes: From experiment to simulation
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10.1116/1.3702806
/content/avs/journal/jvstb/30/3/10.1116/1.3702806
http://aip.metastore.ingenta.com/content/avs/journal/jvstb/30/3/10.1116/1.3702806

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Typical dc plasma and its main constituents contributing to plasma surface interactions and specifically to CNT growth.

Image of FIG. 2.
FIG. 2.

(Color online) Typical dc plasma and its potential and electric field distribution.

Image of FIG. 3.
FIG. 3.

(Color online) Remote PECVD source for CNT growth. Reprinted with permission from Bae et al., Chem. Mater. 17, 5141 (2005), American Chemical Society.

Image of FIG. 4.
FIG. 4.

Illustration of the determination of chirality of an SWNT, as dictated by the chiral vector C h . a 1 and a 2 are the primitive lattice vectors of the graphene sheet, and n and m are the characteristic integers, uniquely identifying the SWNT chirality.

Image of FIG. 5.
FIG. 5.

(Color online) VLS model applied to CNT growth. (a) Adsorption of gas-phase hydrocarbon species on the nanocatalyst particle; (b) catalytic decomposition into carbon atoms and dissolution in the liquid bulk; (c) surface carbon segregation with the formation of a solid precipitate; (d) formation of a solid crystalline structure.

Image of FIG. 6.
FIG. 6.

Plasma induced radial growth of CNTs on the surface of a 125 μm diameter optical fiber. Reprinted with permission from Bower et al., Appl. Phys. Lett. 77, 830 (2000), American Institute of Physics.

Image of FIG. 7.
FIG. 7.

(Color online) Illustration of the electric field induced alignment during SWNT growth in an MD simulation. Reprinted with permission from Neyts et al., J. Am. Chem. Soc. 134, 1256 (2012), American Chemical Society.

Image of FIG. 8.
FIG. 8.

(Color online) Spontaneous cap closure of a (6,6) SWNT as observed in ab initio simulations (Ref. 35), falsifying the scooter growth mechanism. Reprinted with permission from Charlier et al., ACS Nano 1, 202 (2007), American Chemical Society.

Image of FIG. 9.
FIG. 9.

(a) Elementary steps considered in ab initio simulations of C diffusing over an Ni surface; (b) associated energy barriers. Reprinted with permission from Abild-Pedersen et al., Phys. Rev. B 73, 115419 (2006), American Physical Society.

Image of FIG. 10.
FIG. 10.

(Color online) Simulated growth of a (7,7) SWNT in classical MD/MC simulations. The dotted line represents the surface. Reprinted with permission from Neyts et al., J. Am. Chem. Soc. 133, 17225 (2011), American Chemical Society.

Image of FIG. 11.
FIG. 11.

Typical processes taken into account in mechanistic models of CNT growth. Reprinted with permission from Naha and Puri, J. Phys. D: Appl. Phys. 41, 065304 (2008), Institute of Physics.

Image of FIG. 12.
FIG. 12.

Ternary phase diagram showing the composition of various amorphous carbons. Reprinted with permission from Robertson, Mater. Sci. Eng. R 37, 129 (2002), Elsevier.

Image of FIG. 13.
FIG. 13.

Effect of adding a controlled H flux during a-C:H growth as predicted by MD simulations. These simulations indicate that a densification of the film is possible by adjusting the H content in the film. Reprinted with permission from Neyts et al., Appl. Phys. Lett. 88, 141922 (2006), American Institute of Physics.

Image of FIG. 14.
FIG. 14.

(Color online) Formation of Ni-metallofullerene, as predicted by both classical and DFT calculations: (a) exohedral; (b) endohedral; (c) heterohedral.

Tables

Generic image for table
TABLE I.

Overview of mechanical models for CNT growth, based on Ref. 137.

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2012-04-16
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: PECVD growth of carbon nanotubes: From experiment to simulation
http://aip.metastore.ingenta.com/content/avs/journal/jvstb/30/3/10.1116/1.3702806
10.1116/1.3702806
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