Cathode Ray Tube Lighting Elements with Carbon Nanotube Field Emitters

Saito, Yahachi; Uemura, Sashiro; Hamaguchi, Koji

doi:10.1143/jjap.37.l346

Cited by 417 publications

(158 citation statements)

References 14 publications

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“…(5) and (10). The power spectrum at x ¼ 0 represents the magnitude of the current due to electrons that pass through the SWCNTs with crystal defects, in accordance with the inelastic electron tunneling model.…”

Section: -2mentioning

confidence: 56%

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Effect of increased crystallinity of single-walled carbon nanotubes used as field emitters on their electrical properties

Shimoi

2015

Journal of Applied Physics

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Single-walled carbon nanotubes (SWCNTs) synthesized by arc discharge are expected to exhibit good field emission (FE) properties at a low driving voltage. We used a coating containing homogeneously dispersed highly crystalline SWCNTs produced by a high-temperature annealing process to fabricate an FE device by a wet-coating process at a low cost. Using the coating, we succeeded in reducing the power consumption of field emitters for planar lighting devices. SWCNTs synthesized by arc discharge have crystal defects in the carbon network, which are considered to induce inelastic electron tunneling that deteriorates the electrical conductivity of the SWCNTs. In this study, the blocking of the transport of electrons in SWCNTs with crystal defects is simulated using an inelastic electron tunneling model. We succeeded in clarifying the mechanism underlying the electrical conductivity of SWCNTs by controlling their crystallinity. In addition, it was confirmed that field emitters using highly crystalline SWCNTs can lead to new applications operating with low power consumption and new devices that may change our daily lives in the future.

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Section: -2mentioning

confidence: 56%

“…[6][7][8] Among the CNTs, the Young's modulus of SWCNTs is especially high. 9 SWCNTs have been used in a wide range of applications, including field emitters, 10 probes in scanning microscopes, 11 gas storage materials, 12 and electrode materials for secondary batteries, 13 and have been studied in a wide range of applied research fields.…”

Section: Introductionmentioning

confidence: 99%

Effect of increased crystallinity of single-walled carbon nanotubes used as field emitters on their electrical properties

Shimoi

2015

Journal of Applied Physics

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“…Electrons are easily emitted from their tips due to the curvature present in the CNTs in the form of pentagons [102,103] or due to the presence of oxidized tips [104,105]. With this principle, CNTs can be used for the fabrication of multiple electronic devices [104], including flat-panel displays, intense light sources, bright lamps [93,106,107], and X-ray sources [46,108]. Although CNTs are good emitters, nanocomposites of CNTs are also excellent electron-emission surfaces which are vacuum stable [109].…”

Section: In Electronic Devices As Field-emission Sourcesmentioning

confidence: 99%

Carbon nanotubes-properties and applications: a review

Ibrahim¹

2013

Carbon letters

372

122

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The carbon nanotube (CNT) represents one of the most unique inventions in the field of nanotechnology. CNTs have been studied closely over the last two decades by many researchers around the world due to their great potential in different fields. CNTs are rolled graphene with SP 2 hybridization. The important aspects of CNTs are their light weight, small size with a high aspect ratio, good tensile strength, and good conducting characteristics, which make them useful as fillers in different materials such as polymers, metallic surfaces and ceramics. CNTs also have potential applications in the field of nanotechnology, nanomedicine, transistors, actuators, sensors, membranes, and capacitors. There are various techniques which can be used for the synthesis of CNTs. These include the arc-discharge method, chemical vaporize deposition (CVD), the laser ablation method, and the sol gel method. CNTs can be single-walled, double-walled and multi-walled. CNTs have unique mechanical, electrical and optical properties, all of which have been extensively studied. The present review is focused on the synthesis, functionalization, properties and applications of CNTs. The toxic effect of CNTs is also presented in a summarized form.

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“…58 These properties make the CNTs attractive for technological applications. Indeed, the potential of using CNTs as cold cathodes has been demonstrated in devices such as field emission flat panel displays (FEDs), 59 lighting elements, 60 and discharge tubes for over-voltage protection. 61 Most of the cold-cathode applications require a significantly higher emission current than that which can be delivered from a single CNT.…”

Section: Electron Field Emission Propertiesmentioning

confidence: 99%

“…5 From the materials point of view, the nature of CNTs differs significantly from that of the fullerenes. C 60 , as a molecule, can be made with precise and uniform composition and a molecular structure that is essentially defect-free. 6,7 Functional C 60 solids such as single crystals and epitaxial films can be readily fabricated.…”

Section: Introductionmentioning

confidence: 99%

Materials Science of Carbon Nanotubes: Fabrication, Integration, and Properties of Macroscopic Structures of Carbon Nanotubes

Zhou¹,

Shimoda²,

Gao³

et al. 2003

ChemInform

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In this Account, we summarize some of our recent studies on the materials properties of the carbon nanotubes (CNTs). The focus is on single-wall carbon nanotubes (SWNTs). We describe experiments on synthesis of SWNTs with controlled molecular structures and assembly of functional macroscopic structures. In addition, we present results on the electron field emission properties of macroscopic CNT cathodes.

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Cathode Ray Tube Lighting Elements with Carbon Nanotube Field Emitters

Cited by 417 publications

References 14 publications

Effect of increased crystallinity of single-walled carbon nanotubes used as field emitters on their electrical properties

Effect of increased crystallinity of single-walled carbon nanotubes used as field emitters on their electrical properties

Carbon nanotubes-properties and applications: a review

Materials Science of Carbon Nanotubes: Fabrication, Integration, and Properties of Macroscopic Structures of Carbon Nanotubes

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