Polymerised carbon nanobells and their field emission properties

X Ma, E Wang, Wuzong Zhou, DA Jefferson, J Chen, S Deng, N Xu, J Yuan

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177 Citations (Scopus)


Aligned nitrogen-containing carbon nanofibers consisting of polymerized "nanobells" have been grown on a large scale using microwave plasma-assisted chemical-vapor deposition with a mixture of methane and nitrogen. A greater part of the fiber surface consists of open ends of the graphitic sheets. A side-emission mechanism is proposed. A low-threshold field of 1.0 V/mu m and a high-emission current density of 200 mA/cm(2) for an applied field of 5-6 V/mu m were achieved, implying that the materials have a high potential for future application as electron field emitters, especially in flat-panel displays. (C) 1999 American Institute of Physics. [S0003-6951(99)02346-3].

Original languageEnglish
Pages (from-to)3105-3107
Number of pages3
JournalApplied Physics Letters
Issue number20
Publication statusPublished - 15 Nov 1999




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