Concept

Alumine

Publications associées (279)

Mechanisms of the Antibacterial Effects of TiO2-FeOx under Solar or Visible Light: Schottky Barriers versus Surface Plasmon Resonance

This study reports the significant mechanistic difference between binary-oxide antibacterial films with the same composition but different microstructures. Binary TiO2-FeOx films were found to present a faster bacterial inactivation kinetics under visible ...

MDPI2018

The key impact of incorporated Al2O3 barrier layer on W-based ReRAM switching performance

Elmira Shahrabi, Yusuf Leblebici, Jury Sandrini, Cecilia Giovinazzo

In this article, we inspected the bipolar resistive switching behavior of W-based ReRAMs, using HfO2 as switching layer. We have shown that the switching properties can be significantly enhanced by incorporating an Al2O3 layer as a barrier layer. It stabil ...

IEEE2018

3D printed microwave cavity for atomic clock applications: proof of concept

Anja Skrivervik, Emile Jacques de Rijk

The authors present the realisation and characterisation of an additively manufactured (AM) microwave resonator cavity for double-resonance (DR) vapour-cell atomic clocks. The design of the compact microwave cavity is based on the loop-gap resonator approa ...

2018

Simulation of Gas- and Liquid-Phase Layer-By-Layer Deposition of Metal Oxides by Coarse-Grained Modeling

Jeremy Luterbacher, Florent Emmanuel Héroguel, Benjamin Pierre Le Monnier, Kristopher Brown, Chiara Saggese

Atomic layer deposition (ALD) and chemical layer deposition (CLD) are techniques to produce conformal, atomically precise overcoats for materials in gas and liquid phases, respectively. Although it is a challenge to explicitly model ALD/CLD dynamics becaus ...

2018

Determining the Surface Structure of Silicated Alumina Catalysts via Isotopic Enrichment and Dynamic Nuclear Polarization Surface-Enhanced NMR Spectroscopy

David Lyndon Emsley, Brennan James Walder, Jasmine Viger-Gravel

Isotopic enrichment of Si-29 and DNP-enhanced NMR spectroscopy are combined to determine the detailed surface structure of a silicated alumina catalyst. The significant sensitivity enhancement provided by DNP is vital to the acquisition of multinuclear and ...

American Chemical Society2017

Nature of electron trap states under inversion at In0.53Ga0.47As/Al2O3 interfaces

Alfredo Pasquarello, Davide Colleoni

In and Ga impurities substitutional to Al in the oxide layer resulting from diffusion out of the substrate are identified as candidates for electron traps under inversion at In0.53Ga0.47As/Al2O3 interfaces. Through density-functional calculations, these de ...

American Institute of Physics2017

Electronic and structural characterization of barrier-type amorphous aluminium oxide

Alfredo Pasquarello, Patrik Schmutz, Francesco Ambrosio, Claudia Cancellieri, Raheleh Partovi Nia, Roland Hauert, Fabio Evangelisti

The structural, electronic, and dielectric properties of barrier -type anodic Al oxides prepared with various thicknesses have been investigated. The planar and cross morphologies as well as the surface charge distribution were investigated as a function o ...

Elsevier2017

Thick GaN growth via GaN nanodot formation by HVPE

Dmitry Mikulik

We demonstrate a 400 mu m-thick GaN layer on 4 inch (0001) Al2O3 substrates through GaN nanodot formation as a seed for stress relaxation layers, which were formed by an in situ special surface treatment using HVPE. The size and density of the GaN nanodots ...

Royal Soc Chemistry2017

Parametric Experimental Study and Design of Experiment Modelling of Sapphire Grinding

Daniel Sage

This study investigates and models the grinding process of single crystal sapphire. Five parameters: the wheel speed, the feed speed, the vertical feed, the ultrasonic assistance and the crystallographic direction were considered via a design of experiment ...

Elsevier2017

Recent Advances in the Synthesis and Applications of Multimodal Gold-Iron Nanoparticles

Francesco Stellacci

Bimetallic particles based on gold and iron have been gathering increasing interest in biomedical applications because of the synergic combination of the plasmonic features of the inert gold component with the magnetic properties of the iron or iron oxide ...

Bentham Science Publishers2017

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