Mechanism of Field Emission from Carbon Systems

John ROBERTSON

Mechanism of Field Emission from Carbon Systems

John ROBERTSON

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Electron field emission from diamond, diamond-like carbon, carbon nanotubes and nano-structured carbon is compared. It is found that in all practical cases, emission occurs from regions of positive electron affinity with an emission barrier of 5eV, the work function, and with a large field enhancement. The field enhancement in nanotubes arises from their geometry. In diamond, the field enhancement occurs by depletion of grain boundary states. In diamond-like carbon we propose that it occurs by the presence of sp²-rich channels formed by the soft conditioning process.

Publication: IEICE TRANSACTIONS on Electronics Vol.E86-C No.5 pp.787-796

Publication Date: 2003/05/01

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Type of Manuscript: Special Section PAPER (Special Issue on Field Electron Emission from Carbon Materials)

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John ROBERTSON, "Mechanism of Field Emission from Carbon Systems" in IEICE TRANSACTIONS on Electronics, vol. E86-C, no. 5, pp. 787-796, May 2003, doi: .
Abstract: Electron field emission from diamond, diamond-like carbon, carbon nanotubes and nano-structured carbon is compared. It is found that in all practical cases, emission occurs from regions of positive electron affinity with an emission barrier of 5eV, the work function, and with a large field enhancement. The field enhancement in nanotubes arises from their geometry. In diamond, the field enhancement occurs by depletion of grain boundary states. In diamond-like carbon we propose that it occurs by the presence of sp²-rich channels formed by the soft conditioning process.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e86-c_5_787/_p

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author={John ROBERTSON, },
journal={IEICE TRANSACTIONS on Electronics},
title={Mechanism of Field Emission from Carbon Systems},
year={2003},
volume={E86-C},
number={5},
pages={787-796},
abstract={Electron field emission from diamond, diamond-like carbon, carbon nanotubes and nano-structured carbon is compared. It is found that in all practical cases, emission occurs from regions of positive electron affinity with an emission barrier of 5eV, the work function, and with a large field enhancement. The field enhancement in nanotubes arises from their geometry. In diamond, the field enhancement occurs by depletion of grain boundary states. In diamond-like carbon we propose that it occurs by the presence of sp²-rich channels formed by the soft conditioning process.},
keywords={},
doi={},
ISSN={},
month={May},}

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TY - JOUR
TI - Mechanism of Field Emission from Carbon Systems
T2 - IEICE TRANSACTIONS on Electronics
SP - 787
EP - 796
AU - John ROBERTSON
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E86-C
IS - 5
JA - IEICE TRANSACTIONS on Electronics
Y1 - May 2003
AB - Electron field emission from diamond, diamond-like carbon, carbon nanotubes and nano-structured carbon is compared. It is found that in all practical cases, emission occurs from regions of positive electron affinity with an emission barrier of 5eV, the work function, and with a large field enhancement. The field enhancement in nanotubes arises from their geometry. In diamond, the field enhancement occurs by depletion of grain boundary states. In diamond-like carbon we propose that it occurs by the presence of sp²-rich channels formed by the soft conditioning process.
ER -