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Thermal assisted transport of biexcitons in monolayer WSe2
Dorian Béret, Louka Hemmen, Vishwas Jindal +9
Studies of excitonic transport in transition metal dichalcogenide monolayers have attracted increasing interest in recent years in order to develop nano-optoelectronic devices made…
Exciton Formation in Two-Dimensional Semiconductors
K. Mourzidis, V. Jindal, M. Glazov +10
The optical properties of atomically thin semiconductors are dominated by excitons, tightly bound electron-hole pairs, which give rise to particularly rich and remarkable physics.…
Using Light to Polarize and Detect Electron Spins in Silicon
Xavier Marie, Delphine Lagarde, Andrea Balocchi +5
Despite decades of research, demonstration of all-optical detection and control of free electron spins in silicon remains elusive. Here, we directly probe the electron spin propert…
Ab initio quantum approach to electron-hole exchange for semiconductors hosting Wannier excitons
Monique Combescot, Thierry Amand, Shiue-Yuan Shiau
We propose a quantum approach to "electron-hole exchange", better named electron-hole pair exchange, that makes use of the second quantization formalism to describe the problem in…
Non-linear diffusion of negatively charged excitons in WSe2 monolayer
D. Beret, L. Ren, C. Robert +10
We investigate the diffusion process of negatively charged excitons (trions) in WSe2 transition metal dichalcogenide monolayer. We measure time-resolved photoluminescence spatial p…
Measurement of Conduction and Valence Bands g-factors in a Transition Metal Dichalcogenide Monolayer
Cedric Robert, Hanan Dery, Lei Ren +9
The electron valley and spin degree of freedom in monolayer transition-metal dichalcogenides can be manipulated in optical and transport measurements performed in magnetic fields.…