Field emission from multiwall carbon nanotubes on paper substrates | Zendy

Stephen Matthew Lyth | Zendy; S. Ravi P. Silva | Zendy

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Field emission from multiwall carbon nanotubes on paper substrates

Author(s) -

Stephen Matthew Lyth,

S. Ravi P. Silva

Publication year - 2007

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2734379

Subject(s) - carbon nanotube , field electron emission , materials science , substrate (aquarium) , surface roughness , nanotechnology , electric field , electrode , surface finish , composite material , chemical engineering , electron , chemistry , oceanography , physics , quantum mechanics , geology , engineering

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 0.8to11.6V∕μm 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.

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