Highlights / Magnetism and Physics of spin / Transversal Topics
by Cécile Duflot · Published 26 November 2020 · Last modified 23 July 2021
The development of new materials systems exhibiting remarkable quantum properties at the nanometric scale – nanoparticles, ultrathin films – is a major objective for the creation of new devices for such quantum technologies as...
A crack tip is a stress concentrator. Once initiated, it keeps on growing until it has released the whole available energy. A crack in a windshield is and example of a fracture that hardly...
Nitride-based devices are common in common electronic or opto-electronic devices (white LED, blue laser diodes…). The developpement of new materials based on Alx Ga1-xN allow, by varying x, to span a large ultra-violet spectrum...
Growth - Organization - Interfaces / Highlights
by Cécile Duflot · Published 20 July 2020 · Last modified 23 July 2021
Thanks to large progresses relative to their synthesis, nanocrystal now appaer as possible alternative to epitaxially grown semiconductors. However the doping of such nanoparticle remains chalenging and thus method to tune their carrier density...
Highlights / Quantum Technology
by Cécile Duflot · Published 9 February 2020 · Last modified 30 July 2021
Many quantum information protocols rely on photons manipulation. Besides, quantum technologies require device miniaturization. Therefore, it is crucial to develop light nanosources which can be included within a quantum circuit. The Nanostructures and Optics...
Following a pathology or a trauma, the regeneration of the central and peripheral nervous system is today a major societal issue in the context of an aging population. This plasticity, driven by the growth...
Highlights / Magnetism and Physics of spin
by Cécile Duflot · Published 31 December 2019 · Last modified 23 July 2021
Among the II-VI semiconductor heterostructures at the heart of optoelectronic and spintronic applications, one finds the colloidal core-crown nanoplatelets whose thickness is controlled at the level of the atomic monolayer. Synthesized for the first...
Dipolar excitons of GaAs coupled quantum wells provide a model system to study collective phenomena that can emerge in two-dimensional semiconductors. Indeed, these are characterised by a large electric dipole moment and a...
In a metal, the direct repulsive interaction between two electrons (Coulombic interaction) is shielded by the presence of many other electrons. When the density of electrons decreases, this repulsive interaction between electrons increases. If...
Since their first synthesis in 2015 by Kovalenko’s group at ETH Zürich, the all-inorganic lead halide perovskite nanocrystals CsPbX3 (X = Br, Cl, I) have attracted great attention due to their outstanding electronic...
