Field emission from nonaligned carbon nanotubes embedded in a polystyrene matrix

Poa, C. H.; Silva, S. R. P.; Watts, P. C. P.; Hsu, W. K.; Kroto, H. W.; Walton, D. R. M.
April 2002
Applied Physics Letters;4/29/2002, Vol. 80 Issue 17, p3189
Academic Journal
Low threshold fields of 1.6 V/μm and 2.6 V/μm were obtained for field emission from multiwalled carbon nanotubes and boron-doped multiwalled carbon nanotubes embedded in polystyrene, respectively. A Fowler–Nordheim analysis of the results together with sheet resistivity data illustrate that the higher carbon nanotube concentrations in a polystyrene matrix result in larger effective emission areas, at the expense of higher operating threshold fields. © 2002 American Institute of Physics.


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