Field emission from a single carbon nanofiber at sub 100 nm gap

H. S. Sim, Shu Ping Lau, L. K. Ang, G. F. You, M. Tanemura, K. Yamaguchi, M. Zamri, M. Yusop

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)


The authors report the electron field emission from a single carbon nanofiber (CNF) over a range of anode to CNF tip separations of 20-5500 nm. Our results show that the field enhancement factor γ is associated with the electrode separation (S). The modified Miller equation is a reasonable empirical model to describe the behavior of γ, which varies with S over a large range of values. The γ approaches to an asymptotic value of 415 or 1 when S is very large or very small as compared to the length of the CNF, respectively. The maximum field emission current sustained by the single CNF without causing damage was estimated to be as high as 15 μA.
Original languageEnglish
Article number023131
JournalApplied Physics Letters
Issue number2
Publication statusPublished - 14 Jul 2008
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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