Graphene field emission devices
Citation:
Kumar, S., Duesberg, G.S., Pratap, R., Raghavan, S., Graphene field emission devices, Applied Physics Letters, 105, 10, 2014, 103107-Download Item:
Abstract:
Graphene field emission devices are fabricated using a scalable process. The field enhancement factors, determined from the Fowler-Nordheim plots, are within few hundreds and match the theoretical predictions. The devices show high emission current density of ∼10 nA μm−1 at modest voltages of tens of volts. The emission is stable with time and repeatable over long term, whereas the noise in the emission current is comparable to that from individual carbon nanotubes emitting under similar conditions. We demonstrate a power law dependence of emission current on pressure which can be utilized for sensing. The excellent characteristics and relative ease of making the devices promise their great potential for sensing and electronic applications
Sponsor
Grant Number
Science Foundation Ireland (SFI)
12/RC/2278
Science Foundation Ireland (SFI)
PI_10/IN.1/I3030
Author's Homepage:
http://people.tcd.ie/duesbergDescription:
PUBLISHED
Author: DUESBERG, GEORG
Sponsor:
Science Foundation Ireland (SFI)Science Foundation Ireland (SFI)
Type of material:
Journal ArticleCollections
Series/Report no:
Applied Physics Letters105
10
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Full text availableKeywords:
Fowler-Nordheim plotsDOI:
http://dx.doi.org/10.1063/1.4895022Metadata
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