Publication
In situ core-level and valence-band photoelectron spectroscopy of reactively sputtered tungsten oxide films
Publications associées (45)
Sputtered titanium oxynitride coatings for endosseous applications: Physical and chemical evaluation and first bioactivity assays
Rosendo Sanjines, Alessandro Pontearso
Titanium oxynitride coatings (TiNxO3,) are considered a promising material for applications in dental implantology due to their high corrosion resistance, their biocompatibility and their superior hardness. Using the sputtering technique, TiNxO3, films wit ...
Elsevier Science Bv2014Adsorption of BSA on Passivated CoCrMo PVD Alloy: An EQCM and XPS Investigation
Stefano Mischler, Anna Neus Igual Muñoz
Adsorption of Bovine Serum Albumin (BSA) on an anodically passivated CoCrMo biomedical alloy has been studied using the Electrochemical Quartz Crystal Microbalance (EQCM) in phosphate buffer solution at 37 degrees C. CoCrMo layers were deposited on the qua ...
Electrochemical Society2014Accelerated Escherichia coli inactivation in the dark on uniform copper flexible surfaces
César Pulgarin, Juan Kiwi, Michaël Bensimon, Sami Rtimi, Rosendo Sanjines
The bacterial inactivation of Escherichia coli on Cu/CuO-polyester surfaces prepared by direct current magnetron sputtering was investigated in the dark and under actinic light (360nm
American Vacuum Society2014Comparison of HIPIMS sputtered Ag- and Cu-surfaces leading to accelerated bacterial inactivation in the dark
César Pulgarin, Juan Kiwi, Sami Rtimi, Oualid Baghriche
Recently, compact uniform and adhesive films of Ag and Cu have been prepared by DC-magnetron sputtering (DC), pulsed DC magnetron sputtering (DCP) and high power impulse magnetron sputtering (HIPIMS). This study reports the HIPIMS deposition for Ag and Cu ...
Elsevier Science Sa2014Origin of Fermi-level pinning at GaAs surfaces and interfaces
Alfredo Pasquarello, Giacomo Francesco Leonardo Miceli, Davide Colleoni
Through first-principles simulation methods, we assign the origin of Fermi-level pinning at GaAs surfaces and interfaces to the bistability between the As-As dimer and two As dangling bonds, which transform into each other upon charge trapping. This defect ...
Institute of Physics2014Coupling of narrow and wide band-gap semiconductors on uniform films active in bacterial disinfection under low intensity visible light: Implications of the interfacial charge transfer (IFCT)
César Pulgarin, Juan Kiwi, Sami Rtimi, Rosendo Sanjines
This study reports the design, preparation, testing and surface characterization of uniform films deposited by sputtering Ag and Ta on non-heat resistant polyester to evaluate the Escherichia coil inactivation by TaON, TaN/Ag, Ag and TaON/Ag polyester. Co- ...
Elsevier2013Growth and Activation of an Amorphous Molybdenum Sulfide Hydrogen Evolving Catalyst
Amorphous molybdenum sulfide films, prepared by electrodeposition, are a class of highly active catalysts for hydrogen evolution. The growth mechanism of the films and the true active species were unclear. Herein, we report a study of the growth and activa ...
American Chemical Society2013Thermal Boundary Conductance between metals and dielectrics
This work consists in an experimental study of the main parameters governing the transport of heat across an interface between two solids, when it is dominated by phonons. The main experimental tool used is Time-Domain ThermoReflectance (TDTR), which is an ...
EPFL2013