Electron stimulated desorption of negative hydrogen ions from diamond (100)

C. Goeden; G. Dollinger; P. Feulner

doi:10.1016/S0925-9635(99)00291-5

Electron stimulated desorption of negative hydrogen ions from diamond (100)

C. Goeden, G. Dollinger, P. Feulner

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Technical University of Munich

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3 Scopus citations

Abstract

The electron stimulated desorption of negatively charged hydrogen ions from diamond surfaces is studied with respect to an application as a bright ion source. Desorption of macroscopic currents of negative ions from a diamond surface by stimulated desorption has been demonstrated recently. To determine the dependence of the ionization cross-section on electron affinity, an oxygen covered diamond was used as a model system for positive electron affinity diamond. On this surface, different amounts of deuterium have been adsorbed. The D^- ionization cross-section has been proven to vary by one order of magnitude between 3.5×10^-18 cm² and 5×10^-19 cm² with hydrogen coverage of the surface. The energy distribution of desorbed negative ions has been measured by an electrostatic analyzer. For the measured broad energy distribution, an attempt of an explanation is made.

Original language	English
Pages (from-to)	1164-1166
Number of pages	3
Journal	Diamond and Related Materials
Volume	9
Issue number	3
DOIs	https://doi.org/10.1016/S0925-9635(99)00291-5
State	Published - 2000
Event	10th European Conference on Diamond, Diamond-like Materials, Carbon Nanotubes, Nitrides and Silicon Carbide - Prague, Czech Republic Duration: 12 Sep 1999 → 17 Sep 1999

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10.1016/S0925-9635(99)00291-5

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title = "Electron stimulated desorption of negative hydrogen ions from diamond (100)",

abstract = "The electron stimulated desorption of negatively charged hydrogen ions from diamond surfaces is studied with respect to an application as a bright ion source. Desorption of macroscopic currents of negative ions from a diamond surface by stimulated desorption has been demonstrated recently. To determine the dependence of the ionization cross-section on electron affinity, an oxygen covered diamond was used as a model system for positive electron affinity diamond. On this surface, different amounts of deuterium have been adsorbed. The D- ionization cross-section has been proven to vary by one order of magnitude between 3.5×10-18 cm2 and 5×10-19 cm2 with hydrogen coverage of the surface. The energy distribution of desorbed negative ions has been measured by an electrostatic analyzer. For the measured broad energy distribution, an attempt of an explanation is made.",

author = "C. Goeden and G. Dollinger and P. Feulner",

year = "2000",

doi = "10.1016/S0925-9635(99)00291-5",

language = "English",

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TY - JOUR

T1 - Electron stimulated desorption of negative hydrogen ions from diamond (100)

AU - Goeden, C.

AU - Dollinger, G.

AU - Feulner, P.

PY - 2000

Y1 - 2000

N2 - The electron stimulated desorption of negatively charged hydrogen ions from diamond surfaces is studied with respect to an application as a bright ion source. Desorption of macroscopic currents of negative ions from a diamond surface by stimulated desorption has been demonstrated recently. To determine the dependence of the ionization cross-section on electron affinity, an oxygen covered diamond was used as a model system for positive electron affinity diamond. On this surface, different amounts of deuterium have been adsorbed. The D- ionization cross-section has been proven to vary by one order of magnitude between 3.5×10-18 cm2 and 5×10-19 cm2 with hydrogen coverage of the surface. The energy distribution of desorbed negative ions has been measured by an electrostatic analyzer. For the measured broad energy distribution, an attempt of an explanation is made.

AB - The electron stimulated desorption of negatively charged hydrogen ions from diamond surfaces is studied with respect to an application as a bright ion source. Desorption of macroscopic currents of negative ions from a diamond surface by stimulated desorption has been demonstrated recently. To determine the dependence of the ionization cross-section on electron affinity, an oxygen covered diamond was used as a model system for positive electron affinity diamond. On this surface, different amounts of deuterium have been adsorbed. The D- ionization cross-section has been proven to vary by one order of magnitude between 3.5×10-18 cm2 and 5×10-19 cm2 with hydrogen coverage of the surface. The energy distribution of desorbed negative ions has been measured by an electrostatic analyzer. For the measured broad energy distribution, an attempt of an explanation is made.

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U2 - 10.1016/S0925-9635(99)00291-5

DO - 10.1016/S0925-9635(99)00291-5

M3 - Conference article

AN - SCOPUS:0033745794

SN - 0925-9635

VL - 9

SP - 1164

EP - 1166

JO - Diamond and Related Materials

JF - Diamond and Related Materials

IS - 3

T2 - 10th European Conference on Diamond, Diamond-like Materials, Carbon Nanotubes, Nitrides and Silicon Carbide

Y2 - 12 September 1999 through 17 September 1999

ER -

Electron stimulated desorption of negative hydrogen ions from diamond (100)

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