Understanding collision cascades in molecular solids

Krantzman, Kristin D.; Postawa, Zbigniew; Garrison, Barbara J.; Winograd, Nicholas; Stuart, Steven J.; Harrison, Jeffrey S.

doi:10.1016/s0168-583x(01)00411-6

Cited by 49 publications

(75 citation statements)

References 15 publications

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“…This provided a sufficient mass resolution for better than nominal separation for ions with a mass-to-charge (m/z) ratio of up to 1000. The 9 keV SF 5 1 primary ions were produced by an electron ionization source filled with SF 6 at 3 Â 10 À6 mbar. The diameter of the Ga 1 and SF 5 1 beam on the sample was 2-5 and 25 mm, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…3,11,12 Interestingly, the yield enhancement by larger polyatomic primary ions was larger for NaF Á F À ions, associated with beam-induced decomposition, than for the BF 4 À and NaBF 4 Á BF 4 À ions. The purpose of this paper is to study the characteristic features of the mass spectra of oxysalts generated by Ga 1 and SF 5 1 primary ions. The following questions are to be addressed: (1) does the overall yield improve?…”

Section: 9mentioning

confidence: 99%

“…3 and 4 for NaNO 3 and NaNO 2 , respectively. With SF 5 1 the total ion current (TIC) substantially increases, which allows the series of detected adducts to be extended. In the positive mode, dimers exceed the 3 cpsat criterion for nitrates with SF 5 1 (only monomers with Ga 1 ) and also trimers are practically useful for nitrates (only dimers with Ga 1 ).…”

Section: Nano 3 and Nanomentioning

confidence: 99%

“…With SF 5 1 the total ion current (TIC) substantially increases, which allows the series of detected adducts to be extended. In the positive mode, dimers exceed the 3 cpsat criterion for nitrates with SF 5 1 (only monomers with Ga 1 ) and also trimers are practically useful for nitrates (only dimers with Ga 1 ). Quantitatively expressed, the B factor for NaNO 2 Á Na 1 from nitrite is about 1400 and about 70 for NaNO 3 Á Na 1 from nitrate.…”

Section: Nano 3 and Nanomentioning

confidence: 99%

“…Recent simulation supports the latter concept. 5 The literature data available on inorganic speciation using polyatomic bombardment is rather limited; nevertheless, a few studies are worth mentioning here. The study by Groenewold et al focused on the analysis of CuCl and CuCl 2 by using Ga 1 and ReO 4 À primary ions.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Ga+ and SF5+ primary ions for the molecular speciation of oxysalts in static secondary ion mass spectrometry (S-SIMS)

Ham

Vaeck

Adams

et al. 2005

J. Anal. At. Spectrom.

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Speciation of inorganic compounds by means of static secondary ion mass spectrometry (S-SIMS) aims at deriving the molecular composition of the analyte in the solid. The recent use of polyatomic primary ions, instead of the traditionally applied monatomic or diatomic projectiles, potentially offers an increase in secondary ion intensity and an increase in molecular specificity. This paper focuses on the comparison of SF 5 1 and Ga 1 primary ion bombardment for the molecular speciation of inorganic oxysalts. The polyatomic primary ions are found to increase the total ion yield by a factor of 4-10. Furthermore, the relative intensities of the most structure-specific signals are increased in comparison with the low m/z peaks under SF 51 bombardment relative to Ga 1 . Although the formation of oxide fragments is promoted with polyatomic projectiles, the mass spectra significantly gain in information concerning the molecular specificity.

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Section: Methodsmentioning

confidence: 99%

Section: 9mentioning

confidence: 99%

Section: Nano 3 and Nanomentioning

confidence: 99%

Section: Nano 3 and Nanomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Comparison of Ga+ and SF5+ primary ions for the molecular speciation of oxysalts in static secondary ion mass spectrometry (S-SIMS)

Ham

Vaeck

Adams

et al. 2005

J. Anal. At. Spectrom.

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TOF‐SIMS Applications to Bioimaging and Biomolecule Evaluation Methods

Aoyagi

2012

Mass Spectrometry Handbook

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Molecular Dynamics Simulations of Ar⁺–Organic Polymer Interactions

Végh¹,

Graves²

2009

Plasma Processes & Polymers

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MD simulations of ion–organic styrene‐containing polymer interactions are reviewed and compared to experiment. We report results for argon ion bombardment of PS, PαMS and P4MS. All three polymers exhibit the formation of a similar, highly cross‐linking, dehydrogenated near‐surface damaged layer at steady state, but small changes in the structure of the polymer (P4MS and PαMS are isomers) can lead to drastic changes in the initial transient sputtering of the material. We correlate this behavior to differences in radiation chemistry (P4MS and PS are cross‐linking while PaMS is a chain scission polymer), and examine how the behavior in MD may relate to larger‐scale experimental results, such as roughness formation.

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Understanding collision cascades in molecular solids

Cited by 49 publications

References 15 publications

Comparison of Ga+ and SF5+ primary ions for the molecular speciation of oxysalts in static secondary ion mass spectrometry (S-SIMS)

Comparison of Ga+ and SF5+ primary ions for the molecular speciation of oxysalts in static secondary ion mass spectrometry (S-SIMS)

TOF‐SIMS Applications to Bioimaging and Biomolecule Evaluation Methods

Molecular Dynamics Simulations of Ar⁺–Organic Polymer Interactions

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Understanding collision cascades in molecular solids

Cited by 49 publications

References 15 publications

Comparison of Ga+ and SF5+ primary ions for the molecular speciation of oxysalts in static secondary ion mass spectrometry (S-SIMS)

Comparison of Ga+ and SF5+ primary ions for the molecular speciation of oxysalts in static secondary ion mass spectrometry (S-SIMS)

TOF‐SIMS Applications to Bioimaging and Biomolecule Evaluation Methods

Molecular Dynamics Simulations of Ar+–Organic Polymer Interactions

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Product

Resources

About

Molecular Dynamics Simulations of Ar⁺–Organic Polymer Interactions