Work function of hydrogen-terminated diamond surfaces under ion impact

C. I. Pakes; D. Hoxley; S. Rubanov; J. R. Rabeau; S. M. Hearne; D. N. Jamieson; S. Prawer; R. Kalish

doi:10.1016/j.susc.2007.06.051

Work function of hydrogen-terminated diamond surfaces under ion impact

C. I. Pakes^*, D. Hoxley, S. Rubanov, J. R. Rabeau, S. M. Hearne, D. N. Jamieson, S. Prawer, R. Kalish

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Scanning Kelvin-probe microscopy is applied in ultra-high vacuum to characterise local changes in the work function of the hydrogen-terminated diamond surface following modification by thermal annealing and ion-implantation. The effect on the work function of hydrogen desorption was monitored during annealing. Ion irradiation was found to give rise to a different response, inconsistent with hydrogen removal. Increased ion fluence causes a rapid enhancement in the work function, each impinging ion causing band structure modification which extends over length scales of at least 20 nm beyond the impact site, considerably larger than the damage cylinder in the vicinity of each ion impact.

Original language	English
Pages (from-to)	5732-5735
Number of pages	4
Journal	Surface Science
Volume	601
Issue number	24
DOIs	https://doi.org/10.1016/j.susc.2007.06.051
Publication status	Published - 15 Dec 2007
Externally published	Yes

Keywords

Hydrogenated diamond surface
Scanning Kelvin-probe microscopy
Secondary electron emission

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10.1016/j.susc.2007.06.051

Cite this

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title = "Work function of hydrogen-terminated diamond surfaces under ion impact",

abstract = "Scanning Kelvin-probe microscopy is applied in ultra-high vacuum to characterise local changes in the work function of the hydrogen-terminated diamond surface following modification by thermal annealing and ion-implantation. The effect on the work function of hydrogen desorption was monitored during annealing. Ion irradiation was found to give rise to a different response, inconsistent with hydrogen removal. Increased ion fluence causes a rapid enhancement in the work function, each impinging ion causing band structure modification which extends over length scales of at least 20 nm beyond the impact site, considerably larger than the damage cylinder in the vicinity of each ion impact.",

keywords = "Hydrogenated diamond surface, Scanning Kelvin-probe microscopy, Secondary electron emission",

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T1 - Work function of hydrogen-terminated diamond surfaces under ion impact

AU - Pakes, C. I.

AU - Hoxley, D.

AU - Rubanov, S.

AU - Rabeau, J. R.

AU - Hearne, S. M.

AU - Jamieson, D. N.

AU - Prawer, S.

AU - Kalish, R.

PY - 2007/12/15

Y1 - 2007/12/15

N2 - Scanning Kelvin-probe microscopy is applied in ultra-high vacuum to characterise local changes in the work function of the hydrogen-terminated diamond surface following modification by thermal annealing and ion-implantation. The effect on the work function of hydrogen desorption was monitored during annealing. Ion irradiation was found to give rise to a different response, inconsistent with hydrogen removal. Increased ion fluence causes a rapid enhancement in the work function, each impinging ion causing band structure modification which extends over length scales of at least 20 nm beyond the impact site, considerably larger than the damage cylinder in the vicinity of each ion impact.

AB - Scanning Kelvin-probe microscopy is applied in ultra-high vacuum to characterise local changes in the work function of the hydrogen-terminated diamond surface following modification by thermal annealing and ion-implantation. The effect on the work function of hydrogen desorption was monitored during annealing. Ion irradiation was found to give rise to a different response, inconsistent with hydrogen removal. Increased ion fluence causes a rapid enhancement in the work function, each impinging ion causing band structure modification which extends over length scales of at least 20 nm beyond the impact site, considerably larger than the damage cylinder in the vicinity of each ion impact.

KW - Hydrogenated diamond surface

KW - Scanning Kelvin-probe microscopy

KW - Secondary electron emission

UR - http://www.scopus.com/inward/record.url?scp=36549074622&partnerID=8YFLogxK

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DO - 10.1016/j.susc.2007.06.051

M3 - Article

AN - SCOPUS:36549074622

SN - 0039-6028

VL - 601

SP - 5732

EP - 5735

JO - Surface Science

JF - Surface Science

IS - 24

ER -

Work function of hydrogen-terminated diamond surfaces under ion impact

Abstract

Keywords

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