Improvement of field emission performance on nitrogen ion implanted ultrananocrystalline diamond films through visualization of structure modifications

Ying-Chieh Chen; Xiao-Yan Zhong; Bernd Kabius; Jon M. Hiller; Nyan-Hwa Tai; I.-Nan Lin

doi:10.1016/j.diamond.2010.12.017

Improvement of field emission performance on nitrogen ion implanted ultrananocrystalline diamond films through visualization of structure modifications

Ying-Chieh Chen^*, Xiao-Yan Zhong, Bernd Kabius, Jon M. Hiller, Nyan-Hwa Tai, I.-Nan Lin

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

12 Citations (Scopus)

Abstract

The relationship between the electron field emission properties and structure of ultra-nanocrystalline diamond (UNCD) films implanted by nitrogen ions or carbon ions was investigated. The electron field emission properties of nitrogen-implanted UNCD films and carbon-implanted UNCD films were pronouncedly improved with respect to those of as-grown UNCD films, that is, the turn-on field decreased from 23.2 V/μm to 12.5 V/μm and the electron field emission current density increased from 10E-5 mA/cm² to 1 × 10E-2 mA/cm². The formation of a graphitic phase in the nitrogen-implanted UNCD films was demonstrated by Raman microscopy and cross-sectional high-resolution transmission electron microscopy. The possible mechanism is presumed to be that the nitrogen ion irradiation induces the structure modification (converting sp³-bonded carbons into sp²-bonded ones) in UNCD films.

Original language	English
Pages (from-to)	238-241
Journal	Diamond and Related Materials
Volume	20
Issue number	2
Online published	13 Dec 2010
DOIs	https://doi.org/10.1016/j.diamond.2010.12.017
Publication status	Published - Feb 2011
Externally published	Yes

Research Keywords

UNCD
Ion implantation
HRTEM

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@article{dcb5d2466c274e52bc410954d381f4f6,

title = "Improvement of field emission performance on nitrogen ion implanted ultrananocrystalline diamond films through visualization of structure modifications",

abstract = "The relationship between the electron field emission properties and structure of ultra-nanocrystalline diamond (UNCD) films implanted by nitrogen ions or carbon ions was investigated. The electron field emission properties of nitrogen-implanted UNCD films and carbon-implanted UNCD films were pronouncedly improved with respect to those of as-grown UNCD films, that is, the turn-on field decreased from 23.2 V/μm to 12.5 V/μm and the electron field emission current density increased from 10E-5 mA/cm2 to 1 × 10E-2 mA/cm2. The formation of a graphitic phase in the nitrogen-implanted UNCD films was demonstrated by Raman microscopy and cross-sectional high-resolution transmission electron microscopy. The possible mechanism is presumed to be that the nitrogen ion irradiation induces the structure modification (converting sp3-bonded carbons into sp2-bonded ones) in UNCD films.",

keywords = "UNCD, Ion implantation, HRTEM",

author = "Ying-Chieh Chen and Xiao-Yan Zhong and Bernd Kabius and Hiller, {Jon M.} and Nyan-Hwa Tai and I.-Nan Lin",

year = "2011",

month = feb,

doi = "10.1016/j.diamond.2010.12.017",

language = "English",

volume = "20",

pages = "238--241",

journal = "Diamond and Related Materials",

issn = "0925-9635",

publisher = "Elsevier B.V.",

number = "2",

}

Improvement of field emission performance on nitrogen ion implanted ultrananocrystalline diamond films through visualization of structure modifications. / Chen, Ying-Chieh; Zhong, Xiao-Yan; Kabius, Bernd et al.
In: Diamond and Related Materials, Vol. 20, No. 2, 02.2011, p. 238-241.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Improvement of field emission performance on nitrogen ion implanted ultrananocrystalline diamond films through visualization of structure modifications

AU - Chen, Ying-Chieh

AU - Zhong, Xiao-Yan

AU - Kabius, Bernd

AU - Hiller, Jon M.

AU - Tai, Nyan-Hwa

AU - Lin, I.-Nan

PY - 2011/2

Y1 - 2011/2

N2 - The relationship between the electron field emission properties and structure of ultra-nanocrystalline diamond (UNCD) films implanted by nitrogen ions or carbon ions was investigated. The electron field emission properties of nitrogen-implanted UNCD films and carbon-implanted UNCD films were pronouncedly improved with respect to those of as-grown UNCD films, that is, the turn-on field decreased from 23.2 V/μm to 12.5 V/μm and the electron field emission current density increased from 10E-5 mA/cm2 to 1 × 10E-2 mA/cm2. The formation of a graphitic phase in the nitrogen-implanted UNCD films was demonstrated by Raman microscopy and cross-sectional high-resolution transmission electron microscopy. The possible mechanism is presumed to be that the nitrogen ion irradiation induces the structure modification (converting sp3-bonded carbons into sp2-bonded ones) in UNCD films.

AB - The relationship between the electron field emission properties and structure of ultra-nanocrystalline diamond (UNCD) films implanted by nitrogen ions or carbon ions was investigated. The electron field emission properties of nitrogen-implanted UNCD films and carbon-implanted UNCD films were pronouncedly improved with respect to those of as-grown UNCD films, that is, the turn-on field decreased from 23.2 V/μm to 12.5 V/μm and the electron field emission current density increased from 10E-5 mA/cm2 to 1 × 10E-2 mA/cm2. The formation of a graphitic phase in the nitrogen-implanted UNCD films was demonstrated by Raman microscopy and cross-sectional high-resolution transmission electron microscopy. The possible mechanism is presumed to be that the nitrogen ion irradiation induces the structure modification (converting sp3-bonded carbons into sp2-bonded ones) in UNCD films.

KW - UNCD

KW - Ion implantation

KW - HRTEM

UR - http://www.scopus.com/inward/record.url?scp=79551561400&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-79551561400&origin=recordpage

U2 - 10.1016/j.diamond.2010.12.017

DO - 10.1016/j.diamond.2010.12.017

M3 - RGC 21 - Publication in refereed journal

SN - 0925-9635

VL - 20

SP - 238

EP - 241

JO - Diamond and Related Materials

JF - Diamond and Related Materials

IS - 2

ER -

Improvement of field emission performance on nitrogen ion implanted ultrananocrystalline diamond films through visualization of structure modifications

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Research Keywords

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