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Antibacterial Ag-ZrN surfaces promoted by subnanometric ZrN-clusters deposited by reactive pulsed magnetron sputtering

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Advantages of highly ionized pulse plasma magnetron sputtering (HIPIMS) of silver for improved E-coli inactivation

César Pulgarin, Juan Kiwi, Rosendo Sanjines, Oualid Baghriche

This study addresses the DC-magnetron sputtering (DCMS) of Ag-films on polyester and compares the results found for the E. coli inactivation with the inactivation obtained when applying highly ionized pulse plasma power magnetron sputtering (HIPIMS). The a ...

Elsevier2012

An ice core air content record that was recovered from the refrozen-recrystallization ice formation zone in the Dasuopu Glacier was investigated in this work, which showed that the air content in ice performed significant fluctuations both in the seasonal ...

Elsevier BV2010

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This study addresses unreported features for Cu DC-magnetron sputtering on cotton mediating inactivation of Escherichia coil K12 (from now on E. coil). In-depth profile for the different Cu-species inside the cotton fibers was determined by 5 key Ar+ etchi ...

2010

The impact of divertor detachment on carbon sources in JET L-mode discharges

Richard Pitts

Hydrocarbon injection experiments have been performed to investigate the chemical sputtering yield of carbon-fibre composites at elevated temperatures (T-surface similar or equal to 500 K) and detached plasma conditions in the JET outer divertor. A plasma ...

Elsevier2009

Electrospray ion beam deposition and mass spectrometry of nonvolatile molecules and nanomaterials

Stephan Rauschenbach

The vacuum deposition of complex functional molecules and nanoparticles by thermal sublimation is often hindered due to their extremely low vapor pressure. This especially impedes the application of ultrahigh vacuum (UHV) based analytical and surface modif ...

EPFL2008

In this paper, we study the localized deposition of ZnO micro and nanostructures deposited by non-reactive rf-magnetron sputtering through a stencil mask on ultra-thin (10 nm) SiO2 layers containing a single plane of silicon nanocrystals (NCs), synthetized ...

2008

Light emission during the collision of ions and cluster ions on a metal surface covered by rare gas matrices of variable thickness is reported. The light intensity as a function of distance from the metal surface follows the classical image dipole theory. ...

2006

Spectroscopie optique de petits agrégats d'argent et d'or déposés dans une matrice d'argon

Fabien Conus

The absorption spectra of small silver and gold clusters are presented. The experimental technique consists in depositing clusters in an argon matrix which is illuminated with white light. By collecting the outcoming light from the matrix and by analysing ...

EPFL2005

Titanium dioxide is a cheap, chemically stable and non-toxic material. However its electrical properties are unstable and it is a modest semiconductor and a mediocre insulator. For several applications it would be interesting to make it either more insulat ...

EPFL1999

Propriétés électriques et optiques de couches minces de WS2 et MoS2 en vue d'applications photovoltaïques

Christophe Ballif

Single crystals of layered semiconductors such as WS2 and MoS2 have already proven their efficiency as active elements in photovoltaic cells. Due to their high optical absorption coefficient in the visible range, these materials could be used in the form o ...

EPFL1998