Concept

Spectroscopie photoélectronique

Publications associées (705)

Microstructure of Cu-Ag Uniform Nanoparticulate Films on Polyurethane 3D Catheters: Surface Properties

César Pulgarin, Juan Kiwi, Sami Rtimi, Rosendo Sanjines

The preparation, characterization, and antibacterial testing of Cu-Ag sputtered polyurethane (PU) catheters are addressed in this study. PU catheters with different atomic ratios Cu:Ag have been sputtered and led to different optical properties as followed ...

Amer Chemical Soc2016

Molecular Origin and Electrochemical Influence of Capacitive Surface States on Iron Oxide Photoanodes

Michael Graetzel, Artur Braun, Yelin Hu, Florent Alexandre Boudoire

The origin, the nature, and the electronic structure of surface defects causing surface states on metal oxides and their role in solar water splitting have been under scrutiny for several decades. In the present study, the surface of hematite films is trea ...

American Chemical Society2016

Four-dimensional electron microscopy: Ultrafast imaging, diffraction and spectroscopy in materials science and biology

Giovanni Maria Vanacore

Understanding the ultrafast evolution of atomic and electronic rearrangements under nonequilibrium conditions in organic, inorganic and biological materials plays a fundamental role in deciphering the mechanism governing chemical and biological functions. ...

Elsevier Sci Ltd2016

Influence of defect distribution on the reducibility of CeO2-x nanoparticles

Maria Chiara Spadaro

Ceria nanoparticles (NPs) are fundamental in heterogeneous catalysis because of their ability to store or release oxygen depending on the ambient conditions. Their oxygen storage capacity is strictly related to the exposed planes, crystallinity, density an ...

Iop Publishing Ltd2016

A Gibeon meteorite yields a high-performance water oxidation electrocatalyst

Paul Joseph Dyson, Arnaud Magrez, Kevin Sivula, Nestor Guijarro Carratala, Florian Le Formal, Mathieu Steven Prévot, Aswin Gopakumar, Wiktor Stefan Bourée, Charlotte Marie Sornay, Julie Voit

Examining the electrocatalytic performance of naturally-occurring metallic minerals is of interest for energy conversion applications given their unique atomic composition and formation history. Herein, we report the electrocatalytic function of an iron-ba ...

2016

Entanglement and manipulation of the magnetic and spin-orbit order in multiferroic Rashba semiconductors

Jan Hugo Dil, Stefan Peter Muff, Mauro Fanciulli, Andrew Patton Weber

Entanglement of the spin-orbit and magnetic order in multiferroic materials bears a strong potential for engineering novel electronic and spintronic devices. Here, we explore the electron and spin structure of ferroelectric alpha-GeTe thin films doped with ...

Nature Publishing Group2016

Insight on the photocatalytic bacterial inactivation by co-sputtered TiO2-Cu in aerobic and anaerobic conditions

César Pulgarin, Juan Kiwi, Michaël Bensimon, Sami Rtimi, Rosendo Sanjines, Stefanos Giannakis

Co-sputtered TiO2-Cu polyester (TiO2-Cu-PES) under actinic light induced bacterial reduction of E. coli in the presence of O2 (air) and under anaerobic conditions. The bacterial inactivation/oxidation proceeds in the absence of O2 (air) probably due to the ...

Elsevier2016

In situ photoelectron spectroscopic characterization of reactively sputtered, doped vanadium oxide thin films

Andreas Schueler, Anna Krammer, Rosendo Sanjines, Olivia Valérie Charlotte Bouvard

Thin films of pure vanadium oxide (VOx) and Ge doped vanadium oxide (VOx:Ge) have been deposited by reactive magnetron sputtering on Si (100) substrates. These films were characterized by means of in situ X-ray photoelectron spectroscopy and ultraviolet ph ...

Wiley-Blackwell2016

Innovative self-sterilizing transparent Fe-phosphate polyethylene films under visible light

César Pulgarin, Juan Kiwi, Sami Rtimi, Rosendo Sanjines

An account of stable, uniform and adhesive high-density polyethylene terephthalate Fe-phosphate (FeOx-POx-HDPET) sputtered thin films showing absorption in the visible region up to 700 nm compared to POx presenting absorption below 300 nm. These film were ...

RSC Publishing2016

Evidence for a Strong Topological Insulator Phase in ZrTe5

Arnaud Magrez, Oleg Yazyev, Helmuth Berger, Philippe Bugnon, Alberto Crepaldi, Gabriel Albert Autes, Luca Gragnaniello

The complex electronic properties of ZrTe5 have recently stimulated in-depth investigations that assigned this material to either a topological insulator or a 3D Dirac semimetal phase. Here we report a comprehensive experimental and theoretical study of bo ...

Amer Physical Soc2016

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