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Rosendo Sanjines

Cette personne n’est plus à l’EPFL

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Publications associées (57)

LaTiO2N/In2O3 photoanodes with improved performance for solar water splitting

Michael Graetzel, Rosendo Sanjines, Nicolas Xanthopoulos, Kevin Sivula, Takashi Hisatomi

LaTiO2N photoanodes for solar water splitting were prepared by electrophoretic deposition and demonstrated the best photo-currents ever reported for this material. Further important enhancement of the performance was obtained by the use of a sputtered In2O ...

Royal Society of Chemistry2012

Electrical and optical properties of Ta-Si-N thin films deposited by reactive magnetron sputtering

Rosendo Sanjines, David Oezer

The electrical and optical properties of TaxSiyNz thin films deposited by reactive magnetron sputtering from individual Ta and Si targets were studied in order to investigate the effects of nitrogen and silicon contents on both properties and their correla ...

Amer Inst Physics2012

Antimicrobial Cu-functionalized surfaces prepared by bipolar asymmetric DC-pulsed magnetron sputtering (DCP)

Juan Kiwi, César Pulgarin, Rosendo Sanjines, Cristina del Socorro Lonfat

Cu-cotton fabrics were functionalized by bipolar asymmetric DC-pulse magnetron sputtering (DCP). The DCP of Cu-particles on cotton proceeds at a higher energy than DC-magnetron sputtering (DC). The different sputtering mode showed effects on the structure ...

2011

Waveguide superconducting single-photon detectors for integrated quantum photonic circuits

Rosendo Sanjines, Alessandro Gaggero

The monolithic integration of single-photon sources, passive optical circuits, and single-photon detectors enables complex and scalable quantum photonic integrated circuits, for application in linear-optics quantum computing and quantum communications. Her ...

American Institute of Physics2011

Identification of Ternary Phases in TiBC/a-C Nanocomposite Thin Films: Influence on the Electrical and Optical Properties

Rosendo Sanjines

The local structure of TiBC and amorphous carbon (a-C) nanocomposite films (TiBC/a-C) was correlated with their optical and electrical properties. TiBC/a-C films with increasing C content were deposited by magnetron co-sputtering from TiC:TiB2 (60: 40) and ...

2011

Electrical properties and applications of carbon based nanocomposite materials: An overview

Rosendo Sanjines, Arnaud Magrez, Marijana Mionic Ebersold, Rita Smajda

The allotropic forms of carbon (amorphous and polycrystalline graphite, carbon black, fullerenes, nanotubes, graphene) exhibit a large variety of charge transport properties which have been stimulating fundamental and applied research for the development o ...

2011

Magnetron-Sputtered Ag Surfaces. New Evidence for the Nature of the Ag Ions Intervening in Bacterial Inactivation

Juan Kiwi, César Pulgarin, Rosendo Sanjines

DC-magnetron sputtering with an Ag target on textile surfaces produced Ag particles with sizes similar to 4.7 nm (+/- 15%). Sputtering for 15 s led to Ag layers of 15-20 nm. The threshold sputtering time precluding airborne bacterial growth was about 60 s. ...

2010

A unique approach to reveal the nanocomposite nc-MN/SiN-layer architecture of thin films via electrical measurements

Rosendo Sanjines, Silviu Cosmin Sandu, Scott Harada

By addition of Si to a binary transition metal nitride MN (e.g. TiN, ZrN, NbN, CrN), the hardness, thermal stability and chemical inertness of films have been considerably improved. The formation of a ternary M–Si–N ternary phase is possible under specific ...

2010

Structure-reactivity relations for DC-magnetron sputtered Cu-layers during E. coli inactivation in the dark and under light

Juan Kiwi, Lioubov Kiwi, César Pulgarin, Rosendo Sanjines

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

Nanowire superconducting single-photon detectors on GaAs for integrated quantum photonic applications

Rosendo Sanjines, Francesco Marsili, Alessandro Gaggero

We demonstrate efficient nanowire superconducting single photon detectors (SSPDs) based on NbN thin films grown on GaAs. NbN films ranging from 3 to 5 nm in thickness have been deposited by dc magnetron sputtering on GaAs substrates at 350 degrees C. These ...

AIP American Institute of Physics2010

Nanoimprint Lithography with UV-Curable Hyperbranched Polymer Nanocomposites for Optical Biosensing Applications

Yves Leterrier, Rosendo Sanjines, Valérie Geiser

2010

Thermochromic films of VO2:W for smart solar energy applications

Rosendo Sanjines, Jean-Louis Scartezzini, Andreas Schueler, Antonio Paone, Martin Joly

Overheating is a common problem both with the use of active and passive solar energy in thermal solar energy systems and in highly glazed buildings. In solar thermal collectors, the elevated temperatures occurring during stagnation result in reduced lifeti ...

SPIE2009

WC/a-C nanocomposite thin films: Optical and electrical properties

Rosendo Sanjines

WC/amorphous carbon (a-C) thin films were deposited by dual magnetron sputtering from individual WC and graphite targets. The influence of film composition and microstructure on the optical and electrical properties was investigated. As evidenced by x-ray ...

2009

Preparation and Characterization of Silver Substrates Coated with Antimony-Doped SnO2 Thin Films for Surface Plasmon Resonance Studies

Rosendo Sanjines

This paper reports on the preparation of silver/antimony-doped tin oxide (Ag/SnO2:Sb) hybrid interfaces using magnetron sputtering and their characterization. The influence of the Sri target composition (doping with 2 or 5% Sb) on the electrochemical and e ...

2009

Influence of bias voltage on the microstructure and physical properties of magnetron sputtered Zr–Si–N nanocomposite thin films

Rosendo Sanjines, David Oezer, Silviu Cosmin Sandu

e report an investigation concerning the influence of ion bombardment on the nanostructure and physical properties of Zr–Si–N nanocomposite thin films. The films were deposited by reactive magnetron sputtering from individual Zr and Si targets. The Si cont ...

2009

Control of morphology (ZrN crystallite size and SiNx layer thickness) in Zr-Si-N nanocomposite thin films

Rosendo Sanjines, Silviu Cosmin Sandu

DC reactive magnetron sputtering was used for the deposition of Zr–Si–N thin films. Four series of samples have been deposited at various substrate temperatures TS: 300 K, 510 K, 710 K and 910 K. Depending on TS, different N2 partial pressures pN2 were req ...

2008

Preparation and characterization of antimony-doped SnO2 thin films on gold and silver substrates for electrochemical and surface plasmon resonance studies

Rosendo Sanjines

The paper reports on the deposition of thin antimony (Sb)-doped SnO2 films onto gold and silver substrates using magnetron sputtering. The influence of the SnO2:Sb film on the electrochemical and surface plasmon resonance properties is investigated. The be ...

Elsevier2008

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