162 citations · 602 across the 34 of their papers we have counts for
9 papers · 1 filter
Evidence for Highly p-type doping and type II band alignment in large scale monolayer WSe2 /Se-terminated GaAs heterojunction grown by Molecular beam epitaxy
Debora Pierucci, Aymen Mahmoudi, Mathieu Silly +10
Two-dimensional materials (2D) arranged in hybrid van der Waals (vdW) heterostructures provide a route toward the assembly of 2D and conventional III-V semiconductors. Here, we rep…
Indirect to direct band gap crossover in two-dimensional WS2(1-x)Se2x alloys
Cyrine Ernandes, Lama Khalil, Hela Almabrouk +12
In atomically thin transition metal dichalcogenide semiconductors, there is a crossover from indirect to direct bandgap as the thickness drops to one monolayer, which comes with a…
Transport in a Single Self-Doped Nanocrystal
Hongyue Wang, Emmanuel Lhuillier, Qian Yu +4
Addressing the optical properties of a single nanoparticle in the infrared is particularly challenging, thus alternative methods for characterizing the conductance spectrum of nano…
Effects of electron-phonon interactions on the electron tunneling spectrum of PbS quantum dots
H. Wang, E. Lhuillier, Q. Yu +6
We present a tunnel spectroscopy study of single PbS Quantum Dots (QDs) as function of temperature and gate voltage. Three distinct signatures of strong electron-phonon coupling ar…
Transport properties of mid-infrared colloidal quantum dot films
Emmanuel Lhuillier, Sean Keuleyan, Philippe Guyot-Sionnest
The transport and thermal properties of HgTe colloidal quantum dot films with cut-off wavelengths in the mid-IR are investigated. The cut-off wavelength of this material can be tun…
Quantum well infrared photodetectors hardiness to the non ideality of the energy band profile
Emmanuel Lhuillier, Nicolas Pere-Laperne, Isabelle Ribet-Mohamed +6
We report results on the effect of a non-sharp and disordered potential in Quantum Well Infrared Photodetectors (QWIP). Scanning electronic transmission microscopy is used to measu…
Interface roughness transport in THz quantum cascade detectors
Emmanuel Lhuillier, Isabelle Ribet-Mohamed, Emmanuel Rosencher +4
Infrared Detectors based on a Quantum Cascade have been proposed to suppress the dark current which is identified as a limiting factor in Quantum Well Infrared Photodetectors. Thos…
Quantum transport in weakly coupled superlattices at low temperature
E. Lhuillier, I. Ribet-Mohamed, A. Nedelcu +2
We report on the study of the electrical current flowing in weakly coupled superlattice (SL) structures under an applied electric field at very low temperature, i.e. in the tunneli…
Ultimate performance of Quantum Well Infrared Photodetectors in the tunneling regime
E. Lhuillier, I. Ribet-Mohamed, M. Tauvy +3
Thanks to their wavelength diversity and to their excellent uniformity, Quantum Well Infrared Photodetectors (QWIP) emerge as potential candidates for astronomical or defense appli…