Screened excitons and trions by free carriers in the two-dimensional perovskite structure
Sign Up to like & getrecommendations! Published in 2019 at "Physica E: Low-dimensional Systems and Nanostructures"
DOI: 10.1016/j.physe.2019.05.010
Abstract: Abstract We studied theoretically the screening of the Coulomb interaction in the 2D layered halide organic-inorganic perovskite PEPI. We show that the screening reduces considerably the exciton binding energy at high temperature, acting on the… read more here.
Keywords: free carriers; trions free; screened excitons; excitons trions ... See more keywords
Engineering the Dynamics and Transport of Excitons, Trions, and Biexcitons in Monolayer WS2.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c08199
Abstract: The study of transport and diffusion dynamics of quasi-particles such as excitons, trions, and biexcitons in two-dimensional (2D) semiconductors has opened avenues for their application in high-speed excitonic and optoelectronic devices. However, long-range transport and… read more here.
Keywords: excitons trions; diffusion; monolayer ws2; dynamics transport ... See more keywords
Neutral Exciton Diffusion in Monolayer MoS2.
Sign Up to like & getrecommendations! Published in 2020 at "ACS nano"
DOI: 10.1021/acsnano.0c05305
Abstract: Monolayer transition metal dichalcogenides (TMDCs) are promising materials for next generation optoelectronic devices. The exciton diffusion length is a critical parameter that reflects the quality of exciton transport in monolayer TMDCs and limits the performance… read more here.
Keywords: exciton diffusion; diffusion; monolayer; diffusion lengths ... See more keywords
Electrically Tunable Localized versus Delocalized Intralayer Moiré Excitons and Trions in a Twisted MoS2 Bilayer.
Sign Up to like & getrecommendations! Published in 2022 at "ACS nano"
DOI: 10.1021/acsnano.2c00145
Abstract: Moiré superlattice (mSL)-induced sub-bands in twisted van der Waals homo- and heterostructures govern their optical and electrical properties, rendering additional degrees of freedom such as twist angle. Here, we demonstrate the moiré superlattice effects on… read more here.
Keywords: trions twisted; excitons trions; moir excitons; bilayer ... See more keywords
Rydberg Excitons and Trions in Monolayer MoTe2.
Sign Up to like & getrecommendations! Published in 2023 at "ACS nano"
DOI: 10.1021/acsnano.3c00145
Abstract: Monolayer transition metal dichalcogenide (TMDC) semiconductors exhibit strong excitonic optical resonances, which serve as a microscopic, noninvasive probe into their fundamental properties. Like the hydrogen atom, such excitons can exhibit an entire Rydberg series of… read more here.
Keywords: excitons trions; rydberg; rydberg excitons; trions monolayer ... See more keywords
Excitons and Trions in MoS2 Quantum Dots: The Influence of the Dispersing Medium
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.1c05432
Abstract: Single-layer MoS2 has been reported to exhibit strong excitonic and trionic signatures in its photoluminescence (PL) spectra. Here, we report that the emission spectra of MoS2 QDs strongly depend on the dielectric constant of the… read more here.
Keywords: excitons trions; trions mos2; mos2; medium ... See more keywords
Excitons and trions in monolayer transition metal dichalcogenides: A comparative study between the multiband model and the quadratic single-band model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.035131
Abstract: The electronic and structural properties of excitons and trions in monolayer transition metal dichalcogenides are investigated using both a multiband and a single-band model. In the multiband model we construct the excitonic Hamiltonian in the… read more here.
Keywords: band model; single band; excitons trions; band ... See more keywords
Excitons, trions, and biexcitons in transition-metal dichalcogenides : magnetic-field dependence
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.195408
Abstract: The influence of a perpendicular magnetic field on the binding energy and structural properties of excitons, trions, and biexcitons in monolayers of semiconducting transition metal dichalcogenides (TMDs) is investigated. The stochastic variational method (SVM) with… read more here.
Keywords: transition metal; trions biexcitons; excitons trions; magnetic field ... See more keywords
Multipath Optical Recombination of Intervalley Dark Excitons and Trions in Monolayer WSe_{2}.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.124.196802
Abstract: Excitons and trions (or exciton polarons) in transition metal dichalcogenides (TMDs) are known to decay predominantly through intravalley transitions. Electron-hole recombination across different valleys can also play a significant role in the excitonic dynamics, but… read more here.
Keywords: dark excitons; excitons trions; recombination; multipath optical ... See more keywords