201 citations · 1.6k across the 27 of their papers we have counts for
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Energy shifts and broadening of excitonic resonances in electrostatically-doped semiconductors
Hanan Dery, Cedric Robert, Scott A. Crooker +2
Tuning the density of resident electrons or holes in semiconductors provides crucial insight into the composition of excitonic complexes that are observed as absorption or photolum…
Component exchange theory of trions
Dinh Van Tuan, Hanan Dery
Treating the trion problem as an effective two-body system with exciton and electron components, we identify component exchange as the reason leading to trion formation. This mecha…
Effects of dynamical dielectric screening on the excitonic spectrum of monolayer semiconductors
Dinh Van Tuan, Hanan Dery
We present a new method to solve the dynamical Bethe-Salpeter Equation numerically. The method allows one to investigate the effects of dynamical dielectric screening on the spectr…
Excitons in periodic potentials
Dinh Van Tuan, Hanan Dery
The energy band structure of excitons is studied in periodic potentials produced by the short-range interaction between the exciton and electrons of Wigner or Moiré lattices. Treat…
Hexcitons and oxcitons in monolayer WSe
Dinh Van Tuan, Su-Fei Shi, Xiaodong Xu +2
In the archetypal monolayer semiconductor WSe, the distinct ordering of spin-polarized valleys (low-energy pockets) in the conduction band allows for studies of not only simple…
Composite excitonic states in doped semiconductors
Dinh Van Tuan, Hanan Dery
We present a theoretical model of composite excitonic states in doped semiconductors. Many-body interactions between a photoexcited electron-hole pair and the electron gas are inte…
Relaxation and darkening of excitonic complexes in electrostatically-doped monolayer semiconductors: Roles of exciton-electron and trion-electron interactions
Min Yang, Lei Ren, Cedric Robert +5
We present photoluminescence measurements in monolayer WSe, which point to the importance of the interaction between charged particles and excitonic complexes. The theoretical…
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.…
Virtual trions in the photoluminescence of monolayer transition-metal dichalcogenides
Dinh Van Tuan, Aaron M. Jones, Min Yang +2
Photoluminescence experiments from monolayer transition-metal dichalcogenides often show that the binding energy of trions is conspicuously similar to the energy of optical phonons…
Dynamical screening in monolayer transition-metal dichalcogenides and its manifestations in the exciton spectrum
Benedikt Scharf, Dinh Van Tuan, Igor Žutić +1
Monolayer transition-metal dichalcogenides (ML-TMDs) offer exciting opportunities to test the manifestations of many-body interactions through changes in the charge density. Tuning…
The Coulomb interaction in monolayer transition-metal dichalcogenides
Dinh Van Tuan, Min Yang, Hanan Dery
Recently, the celebrated Keldysh potential has been widely used to describe the Coulomb interaction of few-body complexes in monolayer transition-metal dichalcogenides. Using this…
Marrying excitons and plasmons in monolayer transition-metal dichalcogenides
Dinh Van Tuan, Benedikt Scharf, Igor Žutić +1
Just as photons are the quanta of light, plasmons are the quanta of orchestrated charge-density oscillations in conducting media. Plasmon phenomena in normal metals, superconductor…
Probing Many-Body Interactions in Monolayer Transition-Metal Dichalcogenides
Dinh Van Tuan, Benedikt Scharf, Zefang Wang +4
Many-body interactions in monolayer transition-metal dichalcogenides are strongly affected by their unique band structure. We study these interactions by measuring the energy shift…
Charge Transport in Polycrystalline Graphene: Challenges and Opportunities
Aron W. Cummings, Dinh Loc Duong, Van Luan Nguyen +5
Graphene has attracted significant interest both for exploring fundamental science and for a wide range of technological applications. Chemical vapor deposition (CVD) is currently…