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Publications associées (20)

Piezoelectric and elastic properties of Al0.60Sc0.40N thin films deposited on patterned metal electrodes

Luis Guillermo Villanueva Torrijo, Silvan Stettler, Marco Liffredo, Nan Xu, Federico Peretti

Sc-doped aluminum nitride (AlScN) allows for piezoelectric devices with large electromechanical coupling and the benefits increase with larger Sc doping in the film. However, with a larger Sc concentration, the process window narrows, and it is necessary t ...

2024

Drops on the Underside of a Slightly Inclined Wet Substrate Move Too Fast to Grow

François Gallaire, Pierre-Thomas Paul Brun, Pier Giuseppe Ledda

Pendant drops suspended on the underside of a wet substrate are known to accumulate fluid from the surrounding thin liquid film, a process that often results in dripping. The growth of such drops is hastened by their ability to translate over an otherwise ...

AMER PHYSICAL SOC2021

Bretherton's buoyant bubble

Wassim Dhaouadi, John Martin Kolinski

When a buoyant bubble is inserted into a closed capillary that is slightly smaller than the capillary length, it appears stuck; exactly why this is so is a puzzle that has remained unanswered over the past 50 years. Recent calculations suggest that the bub ...

2019

Covalent polymer network semiconducting thin-films and method for producing thereof

Kevin Sivula, Liang Yao

A method for manufacturing a semiconducting, organic, covalent polymer network thin film is disclosed, said method comprising the steps of deposing a solution comprising azide- containing monomers and electron-deficient alkyne-containing monomers onto a re ...

2019

Digital transformation and open innovation ecosystems in the tilm industry: the case of the Movieday platform

Christopher Tucci, Gianluigi Viscusi

Digital technologies are transforming the film industry. Up until roughly a decade ago, the business model for film exhibition was based on theatrical release in combination with television sales and home cinema releases (video and DVD). Recently, many que ...

2017

Engineering reversible elasticity in ductile and brittle thin films supported by a plastic foil

Nicolas Vachicouras, Stéphanie Lacour, Christina Myra Tringides

Reversible deformation is a unique property of elastic materials. Here, we design and fabricate highly stretchable multilayered films by patterning Y-shaped motifs through films of non- elastic materials, e.g. plastics, metals, ceramics. By adjusting the g ...

Elsevier Science Bv2017

Three-dimensional Rayleigh–Taylor instability under a unidirectional curved substrate

Gioele Mariano Nicolò Balestra, François Gallaire, Pierre-Thomas Paul Brun, Nicolas Igor Jacques Kofman

We investigate the Rayleigh–Taylor instability of a thin liquid film coated on the inside of a cylinder whose axis is orthogonal to gravity. We are interested in the effects of geometry on the instability, and contrast our results with the classical case o ...

Cambridge University Press2017

An updated three-zone heat transfer model for slug flow boiling in microchannels

John Richard Thome, Mirco Magnini

This work proposes a novel physics-based model for the fluid mechanics and heat transfer associated with slug flow boiling in horizontal circular microchannels to update the widely used three-zone model of Thome et al. (2004). The heat transfer model has a ...

Pergamon-Elsevier Science Ltd2017

Self-Sterilizing Sputtered Films for Applications in Hospital Facilities

César Pulgarin, Sami Rtimi, Stefanos Giannakis

This review addresses the preparation of antibacterial 2D textile and thin polymer films and 3D surfaces like catheters for applications in hospital and health care facilities. The sputtering of films applying different levels of energy led to the depositi ...

Molecular Diversity Preservation International2017

Zinc blende-wurtzite polytypism in nanocrystalline ZnO films

Christophe Ballif, Aïcha Hessler-Wyser, Sylvain Nicolay, Arthur Brian Aebersold, Cécile Hébert, Duncan Thomas Lindsay Alexander, Lorenzo Fanni

ZnO is commonly observed and assumed to crystallize fully in a wurtzite structure. Indeed, While polytypism between a wurtzite and a zinc blende phase is often seen in some II-VI compounds, it has only rarely been observed in ZnO. Here, by means of automat ...

Elsevier2017

Method for the preparation of a coating

Yves Leterrier, Holger Frauenrath, Stephen Schrettl, Bjoern Schulte

The invention relates to a method for the preparation of a coating comprising at least one coating layer on a solid substrate, said method comprising the steps of a, providing monomers of the type R-(N)x-(L)m-(C≡C)n-(L']o(N')y-R', wherein R is a head moiet ...

2016

Evaluation of audio source separation in the context of 3D audio

Lukas Rohr

The emergence and broader availability of 3D audio systems allows for new possibilities in mixing, post-production and playback of audio content. Used in movie post-production for cinemas, as special effect by disk jockeys for example and even for live con ...

EPFL2015

Permanence and Persistence Conception, Construction and Conversion of Modern Cinema Theatres [1910-1939]

Joana de Almeida Gouveia Oliveira Alves

This work is based on the assumption that it is possible to achieve sustainable development by preserving the twentieth century heritage. Modern European cinemas were especially vulnerable to the passing of time: in a few decades buildings with tremendous ...

EPFL2015

Automatic Detection of Dust and Scratches in Silver Halide Film using Polarized Dark-Field Illumination

Sabine Süsstrunk, Dominic Rüfenacht

We present a method to automatically detect dust and scratches on photographic material, in particular silver halide film, where traditional methods for detecting and removing defects fail. The film is digitized using a novel setup involving crosspolarizat ...

2013

Formation of (113) texture in fcc nitride thin films and its influence on the film properties

Ayat Karimi, Alireza Karimi, Akshath Raghu Shetty

This work presents a study of XRD measurements on the development of the (113) preferential orientation with film thickness for Ti0.67Al0.33N films grown on Si(100) substrates by pulsed DC magnetron sputtering. The buildup of (113) texture was observed usi ...

Elsevier Science Sa2013

Light trapping in solar cells at the extreme coupling limit

Christophe Ballif, Hans Peter Herzig, Franz-Josef Haug, Ali Naqavi, Corsin Battaglia

We calculate the maximal absorption enhancement obtainable by guided mode excitation in a weakly absorbing dielectric slab over wide wavelength ranges. The slab mimics thin film silicon solar cells in the low absorption regime. We consider simultaneously w ...

Optical Soc Amer2013

Study of Amyloid beta-Peptide (A beta 12-28-Cys) Interactions with Congo Red and beta-Sheet Breaker Peptides Using Electrochemical Impedance Spectroscopy

Hubert Girault, Raheleh Partovi Nia

A surface-based approach is presented to study the interactions of A beta 12-28-Cys assembled on gold surfaces with Congo red (CR) and a beta-sheet breaker (BSB) peptide. The various aspects of the peptide film have been examined using different electroche ...

American Chemical Society2012

Microchannel plate and its manufacturing method

The present invention relates to a microchannel plate (1) having an array of channels (5), wherein said microchannel plate comprises a substrate (2) and, deposited on said substrate, a hydrogenated amorphous silicon film (3) having a thickness comprised be ...

2011

Fast and robust hydrogen sensors based on discontinuous palladium films on polyimide, fabricated on a wafer scale

Jürgen Brugger, Thomas Kiefer, Luis Guillermo Villanueva Torrijo

Fast hydrogen sensors based on discontinuous palladium (Pd) ﬁlms on supporting polyimide layers, fabricated by a cost-efﬁcient and full-wafer compatible process, are presented. The ﬁlms, deposited by electron-beam evaporation with a nominal thickness of 1. ...

Institute of Physics2010

Organic Thin Film Transistors on Flexible Polyimide Substrates Fabricated by Full Wafer Stencil Lithography

Mihai Adrian Ionescu, Jürgen Brugger, Dimitrios Tsamados, Katrin Sidler Arnet, Andreea Veronica Savu, Nenad Cvetkovic

This paper presents new results on miniaturized organic thin film transistors (TFT) fabricated on a spin coated polyimide (PI) film. Patterning steps, that are vital for the integrity and electrical performances of the organic TFT, were performed using res ...

Elsevier2010

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