Publication

Positive exchange bias in thin film multilayers produced with nano-oxide layer

Publications associées (29)

Sputter Deposition Technology For Al((1-X))Sc(X)N Films With High Sc Concentration

Paul Muralt, Sylvain Nicolay, Gabriel Christmann, Stefan Mertin

Aluminium scandium nitride (Al1-xScxN) with its strongly enhanced piezoelectric response is the upcoming piezoelectric material of choice in next generation RF filters, sensors, actuators and energy harvesting devices. This paper will concentrate on the de ...

IEEE2017

Nanoionics Phenomena and Devices with Oxide Thin Films

Mahmoud Hadad

The number of studies on solid state ionic thin films (Nanoionics) has increased dramatically over last decades due to their high potential in micro and nanoscale technologies. Micro solid oxide fuel cells (micro-SOFC), and resistive switching memories (Re ...

EPFL2017

Surface Reaction Kinetics of Titanium Isopropoxide and Water in Atomic Layer Deposition

Patrik Willi Hoffmann, Yury Kuzminykh, Michael Oliver Reinke

In atomic layer deposition processes (ALD), surface reactions of adsorbed precursor species lead to the formation of thin films. In order to achieve a well-controlled, self-limiting process, the substrate is sequentially exposed to different precursor mole ...

American Chemical Society2016

Key-features in processing and microstructure for achieving giant electrostriction in gadolinium doped ceria thin films

Paul Muralt, Silviu Cosmin Sandu, Mahmoud Hadad, Husnain Ashraf

Gadolinium doped ceria is a well-known oxygen ion conduction material for solid fuel cell electrolytes. With its centrosymmetric average lattice and relatively low bulk dielectric constant it does not look interesting for electromechanical applications. Ho ...

Elsevier2016

Morphological Characterization of ALD and Doping Effects on Mesoporous SnO2 Aerogels by XPS and Quantitative SEM Image Analysis

Juan-Pablo Correa-Baena

Atomic layer deposition (ALD) is unsurpassed in its ability to create thin conformal coatings over very rough and/or porous materials. Yet although the coating thickness on flat surfaces can be measured by ellipsometry, characterization of these coatings o ...

Amer Chemical Soc2016

Single-domain (110) PbTiO3 thin films: Thermodynamic theory and experiments

Nava Setter, Alexander Tagantsev, Brahim Dkhil, Mahamudu Mtebwa

We report the thermodynamic potential for single-domain (110) thin films epitaxially grown on dissimilar cubic substrates. Using different sets of paraelectric phase elastic compliance coefficients of PbTiO3 single crystal, calculated from the experimental ...

Amer Physical Soc2016

Explaining Morphological and Electrical Features of Boron-doped Zinc Oxide to Tailor New Electrodes for Photovoltaics

Lorenzo Fanni

TCOs are a class of metal oxides that combine transparency to visible light with electrical conductivity. Each TCO is characterized by the trade-off of these two properties which can be tuned for a particular application. This thesis is dedicated to the in ...

EPFL2016

A combinatorial chemical beam vapour deposition approach to tune the electrical conductivity of Nb:TiO2 films via Si co-doping

Paul Muralt, Estelle Wagner, Giacomo Benvenuti, Silviu Cosmin Sandu, Scott Harada, Marc Jobin

Chemical beam vapour deposition (CBVD) is a thin film deposition technique operated under high vacuum conditions in which film growth occurs through the thermally activated chemical decomposition of precursor molecules at the substrate surface. This techni ...

Elsevier Science Sa2016

Reactively Sputtered Nano-Structured Multilayer Coatings on Architectural Glazing for Active Solar Energy Façades

Stefan Mertin

Improving the aesthetic of solar thermal collectors would grant architects a huge potential for a perfect integration of solar panels into building façades: this can be achieved by coloured interference coatings on the cover glass. These coatings also open ...

EPFL2015