Our research
The STEM group at the Laboratoire de Physique des Solides explores nano to atomic scale physics with ultra-high energy resolution electron spectroscopy
Our equipment
We are equiped with state of the art. We are equiped with state of the art electron spectro microscopes fitted with various home-made cutting edge developments permitting original EELS, cathodoluminescence, PINEM or 4D microscopy modes.
Our networks
We are part of several french and european networks and projects.
Latest news and research highlights
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Cathodoluminescence excitation spectroscopy: Nanoscale imaging of excitation pathways
Following optical excitations’ life span from creation to decay into photons is crucial in understanding materials photophysics. Macroscopically, this is studied using optical techniques, such as photoluminescence excitation spectroscopy. However, …
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Substrate influence on transition metal dichalcogenide monolayer exciton absorption linewidth broadening
The excitonic states of transition metal dichalcogenide (TMD) monolayers are heavily influenced by their external dielectric environment and depend on the substrate used. In this work, various wide band gap …
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The abalone reveals its secrets about the origin of its shell
Many multicellular animals secrete a mineralized skeleton, a composite material in which the mineral phase, carbonated, phosphated or siliceous, is predominant. It is generally accepted that carbonates, which are abundant …
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Liquid-phase sintering of lead halide perovskites and metal-organic framework glasses
Lead halide perovskite (LHP) semiconductors show exceptional optoelectronic properties. Barriers for their applications, however, lie in their polymorphism, instability to polar solvents, phase segregation, and susceptibility to the leaching of …
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Nanoscale Modification of WS2 Trion Emission by Its Local Electromagnetic Environment
Structural, electronic, and chemical nanoscale modifications of transition metal dichalcogenide monolayers alter their optical properties. A key missing element for complete control is a direct spatial correlation of optical response …
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eBEAM school: electron spectroscopies for nano-optics, September 11th-16th 2021, Porquerolles France
The STEM group is organizing the first school on electron spectroscopies for nano-optics, September 11th-16th 2021, Porquerolles France. Electron optics and spectroscopy instrumentation developments in the last 20 years have …
Open positions
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Ph D and post-doc positions: Exploring the physics of 2D materials excitations using relativistic electrons
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Post-doc position: Fast electron and photon interaction with single molecules
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Ph D and post-doc Positions in quantum optics with fast electrons
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Post-doc and PhD positions – Alloyed materials for photonics: exploring dielectric response in group IV nanowires
Latest publications
Folds and wrinkles in boron nitride (BN) sheets can locally reduce the band gap and may trap charge carriers, find researchers from @STEM_LPS and @chrisewels group
https://go.acs.org/2Mf
Interested in working on the best monochromated #ElectronMicroscopy and challenging it with #Synchrotron based spectroscopy? Check out our #PhD scholarship where such outstanding tools will be combined to investigate 2D electron gases at oxide interfaces! https://www.stem.lps.u-psud.fr/2d-gases-oxide-nanostructures-revealed-high-space-energy-and-momentum-resolved-spectroscopy
We search a post-doc, specialist on time-resolved spectroscopy (including optics), to work on time-resolved experiments in an electron microscope @LPS_Orsay @UnivParisSaclay, in collaboration with @attolight. For more info, DM @ltizei or @MathieuKociak https://www.stem.lps.u-psud.fr/cathodoluminescence-light-excitation-spectroscopy-0