Field emitting inks for consumer-priced broad-area flat-panel displays

Burden, A.P.; Bishop, H.E.; Brierley, M.C.; Friday, J.M.; Hood, C.; Jones, P.G.A.; Khazov, A.; Lee, W.; Riggs, R.J.; Shaw, V.L.; Tuck, R.A.

doi:10.1116/1.591294

Cited by 29 publications

(12 citation statements)

References 15 publications

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“…Motivated by earlier works on field emission from graphitic flakes dispersed in insulating media, [250,251] it was anticipated that rGO-PS composites would yield improved field enhancement due to atomically sharp edges allowing extraction of electrons into the vacuum at low-threshold electric fields. [252] For efficient field emission, rGO sheets must be oriented vertically and not lie flat on the substrate.…”

Section: Field-emission Devicesmentioning

confidence: 99%

Chemically Derived Graphene Oxide: Towards Large‐Area Thin‐Film Electronics and Optoelectronics

2010

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Chemically derived graphene oxide (GO) possesses a unique set of properties arising from oxygen functional groups that are introduced during chemical exfoliation of graphite. Large-area thin-film deposition of GO, enabled by its solubility in a variety of solvents, offers a route towards GO-based thin-film electronics and optoelectronics. The electrical and optical properties of GO are strongly dependent on its chemical and atomic structure and are tunable over a wide range via chemical engineering. In this Review, the fundamental structure and properties of GO-based thin films are discussed in relation to their potential applications in electronics and optoelectronics.

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Section: Field-emission Devicesmentioning

confidence: 99%

Chemically Derived Graphene Oxide: Towards Large‐Area Thin‐Film Electronics and Optoelectronics

2010

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“…7 This approach has been recently revived by the incorporation of conductive graphitic particles into a nonconductive epoxy matrix to form metal-insulator-metalinsulator-vacuum cathodes. 8 In these electrically inhomogeneous cathodes, tailoring the concentration of the conductive phase, as a means to control charge transport, is an important issue. For flat metals, while there is an abundance of electrons, the absence of a surface geometric enhancement factor coupled with a high surface potential barrier ͑work function͒ results in the need for a high electric field ͑Ͼ200 V / m͒ to be applied for emission.…”

mentioning

confidence: 99%

Charge transport effects in field emission from carbon nanotube-polymer composites

Smith

Carey

Murphy

et al. 2005

Applied Physics Letters

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Electron field emission measurements have been made on multiwall arc discharge carbon nanotubes embedded in a conjugated polymer host. Electron emission at low nanotube content is observed and attributed to an enhancement of the applied electric field at the polymer/nanotube/vacuum interface where the electron supply through the film is attributed to fluctuation induced tunneling in a disordered percolation network. A high network resistance is attributed to a polymer coating surrounding each nanotube, resulting in high resistance nanotube-polymer-nanotube tunnel junctions. The potential use of carbon nanotube-polymer composites for field emission based displays is also discussed. © 2005 American Institute of Physics. ͓DOI: 10.1063/1.2158023͔Electron field emission based displays ͑FEDs͒ are highly attractive from a technological viewpoint for the next generation of displays. 1 Considerable research is currently being undertaken to find alternative cathode materials that emit electrons at relatively low applied electric fields. The discovery 2 of carbon nanotubes ͑CNTs͒ inevitably led to the use of CNTs as potential electron sources 3 and the subsequent development of a prototype FED. 4 In addition, electron emission from carbon nanofibers grown on low temperature substrates has also been demonstrated. 5 Optimizing emission from CNTs is an important technological goal due to the relatively high current production costs of nanotubes. To that end, the previous report of emission from CNTs, with mass fractions of 11%-33% embedded in a polystyrene matrix, is therefore important since the use of a composite structure potentially allows a lower concentration of nanotubes to be used. 6 The concept of an emitter based material embedded in a host matrix can be originally traced back to the pioneering work of Latham. 7 This approach has been recently revived by the incorporation of conductive graphitic particles into a nonconductive epoxy matrix to form metal-insulator-metalinsulator-vacuum cathodes. 8 In these electrically inhomogeneous cathodes, tailoring the concentration of the conductive phase, as a means to control charge transport, is an important issue. For flat metals, while there is an abundance of electrons, the absence of a surface geometric enhancement factor coupled with a high surface potential barrier ͑work function͒ results in the need for a high electric field ͑Ͼ200 V / m͒ to be applied for emission. In DLC films, emission has been described in terms of transport of electrons by hopping between conductive sp 2 clusters. 9 From these examples, it is evident that charge transport and emission of electrons are intrinsically linked. In this letter we report on the field emission characteristics of multiwall carbon nanotube-conjugated polymer composites as a function of nanotube loading. We show how the threshold field for emission decreases with nanotube loading and the transport of charge through a disordered percolation network.Composite solutions of conjugated polymer poly͑m-phenylenevinylene-co-2,5-diocty...

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“…Initial results yielding an emission site density of about 1 × 10 5 cm −2 at an extraction field of about 25 V/m were described in Ref. [15]. Field emission from polymers has also been recently demonstrated [16].…”

Section: Field Emission Flat Panel Displaysmentioning

confidence: 93%

Field Emission Flat Panel Displays

Busta¹

2001

Vacuum Microelectronics

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Field emitting inks for consumer-priced broad-area flat-panel displays

Abstract: Articles you may be interested inStudy of high-brightness flat-panel lighting source using carbon-nanotube cathode High-voltage triode flat-panel display using field-emission nanotube-based thin films

Cited by 29 publications

References 15 publications

Chemically Derived Graphene Oxide: Towards Large‐Area Thin‐Film Electronics and Optoelectronics

Chemically Derived Graphene Oxide: Towards Large‐Area Thin‐Film Electronics and Optoelectronics

Charge transport effects in field emission from carbon nanotube-polymer composites

Field Emission Flat Panel Displays

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