A new type of cluster and cluster ion source

Haberland, Hellmut; Karrais, Martin; Mall, Martin

doi:10.1007/bf01544025

Cited by 140 publications

(94 citation statements)

References 4 publications

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“…The silicon clusters in this work were produced by the magnetron gas aggregation method similar to that described by the groups of von Issendorf/Haberland [17,21], Palmer [14] and Milani [15] using a DC sputter head and a gas aggregation chamber manufactured by Oxford Applied Research. The aggregation chamber was cooled with liquid nitrogen.…”

Section: Methodsmentioning

confidence: 99%

A novel approach towards the production of luminescent silicon nanoparticles: sputtering, gas aggregation and co-deposition with H2O

et al. 2009

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Abstract. Silicon clusters were produced by sputtering of a p-doped Si target and aggregation of the Si atoms in an argon gas atmosphere. The clusters were deposited in ultra high vacuum onto either (i) carbon transmission electron microscope (TEM) grids or (ii) a liquid nitrogen cooled finger on which a thick layer of ice was co-deposited during the exposure to the cluster beam. The ice layer containing the clusters was melted to form a liquid sample which showed luminescence peaking at 421 nm when excited at 307.5 nm. The luminescence is attributed to electron-hole recombination in oxygen deficient defects in the Si-SiO2 interface region. TEM images of the nanoparticles deposited on the carbon grids show spherical particles with diameters ranging from 4 to 50 nm, flake-like structures or nanotube-like shapes. Grids with higher deposited densities reveal clusters that are agglomerated into chains, TEM images of the dried liquid sample show a network of fibres indicating that growth into fibres is further promoted when the clusters gain mobility in the melted ice. PACS

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Section: Methodsmentioning

confidence: 99%

A novel approach towards the production of luminescent silicon nanoparticles: sputtering, gas aggregation and co-deposition with H2O

et al. 2009

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“…Briefly, C n N − m anions are produced by reactive sputtering of a graphite target (Kurt J. Lesker) within a magnetron sputter source [30]. Ar-and N 2 -gas are used for the reactive sputtering process which leads to formation of C n N m clusters in different charge states.…”

Section: Experimental and Computational Detailsmentioning

confidence: 99%

Infrared Photodissociation Spectroscopy of C_2n+1N⁻ Anions with n = 1 – 5

Stanca-Kaposta

Schwaneberg

Fagiani

et al. 2014

Zeitschrift Für Physikalische Chemie

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“…35 In SCBD, neutral clusters are accelerated in a carrier gas by the supersonic expansion; electrostatically accelerated ion clusters are not used therefore to assemble the nanostructured film. 36 Here, we present the production of cluster-assembled zirconia films with cubic structure at room temperature and with controlled nanoscale morphology. We characterized the effect of thermal annealing in reducing and oxidizing conditions (temperature range: from room temperature to 1000 C) on the crystalline structure, grain dimensions, and topography, highlighting the mechanisms of film growth and phase transition, which determine the observed interfacial morphological properties and their resilience against thermal treatments.…”

Section: Introductionmentioning

confidence: 99%

Cluster-assembled cubic zirconia films with tunable and stable nanoscale morphology against thermal annealing

Borghi

Sogne

Lenardi

et al. 2016

Journal of Applied Physics

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Nanostructured zirconium dioxide (zirconia) films are very promising for catalysis and biotechnological applications: a precise control of the interfacial properties of the material at different length scales and, in particular, at the nanoscale, is therefore necessary. Here, we present the characterization of cluster-assembled zirconia films produced by supersonic cluster beam deposition possessing cubic structure at room temperature and controlled nanoscale morphology. We characterized the effect of thermal annealing in reducing and oxidizing conditions on the crystalline structure, grain dimensions, and topography. We highlight the mechanisms of film growth and phase transitions, which determine the observed interfacial morphological properties and their resilience against thermal treatments. Published by AIP Publishing. [http://dx

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A new type of cluster and cluster ion source

Cited by 140 publications

References 4 publications

A novel approach towards the production of luminescent silicon nanoparticles: sputtering, gas aggregation and co-deposition with H2O

A novel approach towards the production of luminescent silicon nanoparticles: sputtering, gas aggregation and co-deposition with H2O

Infrared Photodissociation Spectroscopy of C_2n+1N⁻ Anions with n = 1 – 5

Cluster-assembled cubic zirconia films with tunable and stable nanoscale morphology against thermal annealing

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A new type of cluster and cluster ion source

Cited by 140 publications

References 4 publications

A novel approach towards the production of luminescent silicon nanoparticles: sputtering, gas aggregation and co-deposition with H2O

A novel approach towards the production of luminescent silicon nanoparticles: sputtering, gas aggregation and co-deposition with H2O

Infrared Photodissociation Spectroscopy of C2n+1N− Anions with n = 1 – 5

Cluster-assembled cubic zirconia films with tunable and stable nanoscale morphology against thermal annealing

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Infrared Photodissociation Spectroscopy of C_2n+1N⁻ Anions with n = 1 – 5