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

Author(s)

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

Detail(s)

Original language	English
Pages (from-to)	238-241
Journal / Publication	Diamond and Related Materials
Volume	20
Issue number	2
Online published	13 Dec 2010
Publication status	Published - Feb 2011
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.diamond.2010.12.017 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-79551561400&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(dcb5d246-6c27-4e52-bc41-0954d381f4f6).html

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.

Research Area(s)

UNCD, Ion implantation, HRTEM

Citation Format(s)

[ RIS ] [ BibTeX ]

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

Chen, Y-C, Zhong, X-Y, Kabius, B, Hiller, JM, Tai, N-H & Lin, I-N 2011, 'Improvement of field emission performance on nitrogen ion implanted ultrananocrystalline diamond films through visualization of structure modifications', Diamond and Related Materials, vol. 20, no. 2, pp. 238-241. https://doi.org/10.1016/j.diamond.2010.12.017

Chen, Y.-C., Zhong, X.-Y., Kabius, B., Hiller, J. M., Tai, N.-H., & Lin, I. .-N. (2011). Improvement of field emission performance on nitrogen ion implanted ultrananocrystalline diamond films through visualization of structure modifications. Diamond and Related Materials, 20(2), 238-241. https://doi.org/10.1016/j.diamond.2010.12.017

Chen YC, Zhong XY, Kabius B, Hiller JM, Tai NH, Lin IN. Improvement of field emission performance on nitrogen ion implanted ultrananocrystalline diamond films through visualization of structure modifications. Diamond and Related Materials. 2011 Feb;20(2):238-241. Epub 2010 Dec 13. doi: 10.1016/j.diamond.2010.12.017

Chen, Ying-Chieh ; Zhong, Xiao-Yan ; Kabius, Bernd et al. / Improvement of field emission performance on nitrogen ion implanted ultrananocrystalline diamond films through visualization of structure modifications. In: Diamond and Related Materials. 2011 ; Vol. 20, No. 2. pp. 238-241.