Fabrication and field emission property studies of multiwall carbon nanotubes

Chen, S Y; Miao, Hsin-Yuan; Lue, Juh Tzeng; Ouyang, Minsun

doi:10.1088/0022-3727/37/2/017

Cited by 33 publications

(20 citation statements)

References 31 publications

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“…MWNTs 26 and SWNTs 27 that grow from small catalyst clusters (≈1 nm in diameter) have similar diameters as the catalyst particle. Also, experimental data suggests that the thinnest free-standing SWNT that grows catalytically is 0.6-0. that is in contact with the metal particle.…”

Section: Effect Of Metal Cluster Size On Swnt Structure and Diametermentioning

confidence: 99%

Molecular dynamics study of the catalyst particle size dependence on carbon nanotube growth

Ding

Rosén

Bolton

2004

The Journal of Chemical Physics

192

132

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The molecular dynamics method, based on an empirical potential energy surface, was used to study the effect of catalyst particle size on the growth mechanism and structure of single-walled carbon nanotubes (SWNTs). The temperature for nanotube nucleation (800-1100 K), which occurs on the surface of the cluster, is similar to that used in catalyst chemical vapor deposition experiments, and the growth mechanism, which is described within the vapor-liquid-solid model, is the same for all cluster sizes studied here (iron clusters containing between 10 and 200 atoms were simulated). Large catalyst particles, that contain at least 20 iron atoms, nucleate SWNTs and have a far better tubular structure than SWNTs nucleated from smaller clusters. In addition, the SWNTs that grow from the larger clusters have diameters that are similar to the cluster diameter, whereas the smaller clusters, which have diameters less than 0.5 nm, nucleate nanotubes that are approximately 0.6-0.7 nm in diameter. This is in agreement with the experimental observations that SWNT diameters are similar to the catalyst particle diameter, and that the narrowest free-standing SWNT is 0.6-0.7 nm.

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Section: Effect Of Metal Cluster Size On Swnt Structure and Diametermentioning

confidence: 99%

Molecular dynamics study of the catalyst particle size dependence on carbon nanotube growth

Ding

Rosén

Bolton

2004

The Journal of Chemical Physics

192

132

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“…[1][2][3][4][5][6][7][8][9]. Much of the efforts have been concentrated on enhancing the field electron emission (FEE) efficiency and to decrease the threshold electric field (E th ).…”

Section: Introductionmentioning

confidence: 99%

Field electron emission of double walled carbon nanotube film prepared by drop casting method

Somani

Lau

et al. 2007

Solid-State Electronics

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International audienceThick films of double walled carbon nanotubes (DWCN) were deposited on indium-tin-oxide (ITO) coated glass substrates by drop casting method and were studied for their field electron emission property in a parallel plate configuration using bare ITO coated glass as counter electrode. They show excellent field electron emission property with low turn-on-field of about 0.8 V/lm and threshold field of about 1.8 V/lm. Field enhancement factor calculated from the non-saturated region of the FN plot is about 1715. Field electron emission current was observed to be stable up to 3000 min, indicating thereby that DWCNs are excellent electron emitters with appreciable stable performance

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“…1 Field emitters, 2 tips for scanning probe microscopy, [3][4][5][6] sensors, 7 solar cells 8 and biosensors 9 are potential CNT applications. CNTs are conjugated carbon atoms and, thus, are chemically inert.…”

Section: Introductionmentioning

confidence: 99%

Low-Temperature Preparation of a Carbon Nanotube–ZnO Hybrid on Glass Substrate for Field Emission Applications

Tabatabaei

Fard

Koohsorkhi

2015

NANO

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A new method for preparation of a carbon nanotube (CNT)-zinc oxide hybrid on a glass substrate at low temperature is introduced and the stability improvement of¯eld emission of CNTs is reported. The emission current stability and substrate material are the two main commercial parameters for¯eld emission applications of CNTs. The two alternative current (AC) and direct current (DC) plasma enhancement chemical vapor deposition (PECVD) is used to achieve lowtemperature growth of vertically aligned CNTs and the hydrothermal processing is used for production of zinc oxide nanowires to improve the emission current stability and properties. The nanoscale junction between a semiconductor and conductive material are critical for electronic applications. The present study examined the¯eld emission properties of CNTs near the crystalline structure of the zinc oxide hybrids and showed the improvement in the¯eld enhancement factor and emission current stability of CNT-ZnO hybrid than the CNT emitters.

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Fabrication and field emission property studies of multiwall carbon nanotubes

Cited by 33 publications

References 31 publications

Molecular dynamics study of the catalyst particle size dependence on carbon nanotube growth

Molecular dynamics study of the catalyst particle size dependence on carbon nanotube growth

Field electron emission of double walled carbon nanotube film prepared by drop casting method

Low-Temperature Preparation of a Carbon Nanotube–ZnO Hybrid on Glass Substrate for Field Emission Applications

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