Field emission from multiwall carbon nanotubes on paper substrates

S. M. Lyth; S. R.P. Silva

doi:10.1063/1.2734379

Field emission from multiwall carbon nanotubes on paper substrates

S. M. Lyth^*, S. R.P. Silva

^*Corresponding author for this work

Chemical And Process Engineering

Research output: Contribution to journal › Article › peer-review

54 Citations (Scopus)

Abstract

The authors report extremely low electron field emission thresholds from acid oxidized multiwall carbon nanotubes deposited on paper substrates by dip coating in an aqueous nanotube ink. Using paper substrates of differing surface roughness, field emission threshold fields ranging from 0.8 to 11.6 Vμm were observed, varying in an approximate inverse linear log relationship with the surface roughness of the underlying paper substrate. This study shows how field emission from supported nanotube films can be tailored via the morphology of the scaffold substrate, and how these composite electrodes can be straightforwardly fabricated on cheap, flexible substrates.

Original language	English
Article number	173124
Journal	Applied Physics Letters
Volume	90
Issue number	17
DOIs	https://doi.org/10.1063/1.2734379
Publication status	Published - 27 Apr 2007

Funding

The authors would like to thank EPSRC (UK) for funding this research via the CBE and Portfolio Partnership programs. Thanks are due to Ross Hatton for helpful discussion.

Keywords

surface collisions
field emitter arrays
electrodes
materials purification
thin film deposition

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10.1063/1.2734379

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Field emission from multiwall carbon nanotubes on paper substrates

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