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Synthèse et propriétés de monocristaux, de poudres, films minces ou hétérostructures

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Soutenance HDR - Monica BURRIEL - 13/04/2021

Publié le 12 mars 2021
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Soutenance 13 avril 2021
Grenoble INP - Phelma
3 parvis Louis Néel - 38000 Grenoble
Accès : TRAM B arrêt Cité internationale
Free entrance - No registration
10H00 - Salle des Conseils Z 704 - Bâtiment Z (Phelma Minatec), Grenoble

Nanoionique : des études fondamentales aux (micro)dispositifs fonctionnels

Monica BURRIEL

Monica BURRIEL


Mónica BURRIEL
CNRS Research Scientist, LMGP


 

Mots-clés:
Pérovskite, film mince, dépôt chimique en phase vapeur d'organométalliques, nanoionique, piles à combustible à oxydes solides, commutation résistive, Valence change memories, La2NiO4+δ, diffusion de l'oxygène


Abstract

In this HDR defence I will summarise my research experience in a global way. I aim to give a flavour of the main topics I have worked in during this broad scientific journey, which has taken place in 7 different research laboratories in 4 different counties, with short visits to others.
The common keyword that encompasses most of my work is “nanoionics”, term which has been rapidly recognized as an emerging new scientific area, being widely accepted to cover nanoscale phenomena caused by the migration of ions in solids. Nanoscale phenomena are of major importance when dealing with the migration of ions in thin films, which are of the order of tens to hundreds of nanometers, with grain dimensions of tens of nanometers, and a large presence of defects, such as grain boundaries and dislocations. The surfaces and interfaces become the protagonists in nanoionic materials, films and heterostructures; and the electrochemical processes occurring can be dominated by them. With the scaling down of electrochemical devices and the appearance of new applications, such as Redox-based Resistive Random Access Memories (ReRAM) and neuromorphic computation, nanoionic thin films, mainly used in the past for fundamental studies, have now become key elements in the construction of nanoionic devices, such as micro solid oxide fuel cells and electrolysers, and memristive devices.
During my talk I will briefly present the main results of selected topics in which I have been a main driving force of the work, either as the experimentalist working in the lab or as the main supervisor, and mainly focused on the study of mixed ionic electronic conducting oxides of three families of materials: a) ABO3-δ perovskites; b) layered A2BO4+δ oxides; and c) A-site-ordered double perovskites. Yet, luckily this exciting scientific journey will not finish after my HDR defence. So to wrap up I will present the prospects of my work for the next years moving from fundamental studies to applications in functional (micro)devices.

Membres du jury/jury members :
 

Prof.

Marian CHATENET

Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces, Grenoble

Président

Directrice de Recherche

Marie-Paule BESLAND

Institut des matériaux Jean Rouxel, Nantes

Rapportrice

Directeur de Recherche

Mario MAGLIONE

Institut de Chimie de la matière condensée de Bordeaux

Rapporteur

Professeur

Christophe VALLEE

SUNY Polytechnic Institute, États-Unis

Rapporteur

Directrice de Recherche

Florence LEFEBVRE-JAUD

CEA, LITEN / CEA - Grenoble

Membre

Professeur

Vincenzo ESPOSITO

Technical University of Denmark (DTU)

Membre



 
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mise à jour le 13 avril 2021

  • Tutelle CNRS
  • Tutelle Grenoble INP
Université Grenoble Alpes