Recent progress of exciton transport in two-dimensional semiconductors

H Lee, YB Kim, JW Ryu, S Kim, J Bae, Y Koo, D Jang… - Nano …, 2023 - Springer
Spatial manipulation of excitonic quasiparticles, such as neutral excitons, charged excitons,
and interlayer excitons, in two-dimensional semiconductors offers unique capabilities for a …

Exciton optics, dynamics, and transport in atomically thin semiconductors

R Perea-Causin, D Erkensten, JM Fitzgerald… - APL Materials, 2022 - pubs.aip.org
Atomically thin semiconductors such as transition metal dichalcogenide (TMD) monolayers
exhibit a very strong Coulomb interaction, giving rise to a rich exciton landscape. This makes …

Diffusion of excitons in a two-dimensional fermi sea of free charges

K Wagner, ZA Iakovlev, JD Ziegler, M Cuccu… - Nano Letters, 2023 - ACS Publications
Propagation of light-emitting quasiparticles is of central importance across the fields of
condensed matter physics and nanomaterials science. We experimentally demonstrate …

Trion Binding Energy Variation on Photoluminescence Excitation Energy and Power during Direct to Indirect Bandgap Crossover in Monolayer and Few-Layer MoS2

S Golovynskyi, OI Datsenko, D Dong… - The Journal of …, 2021 - ACS Publications
The behavior of the trion and exciton photoluminescence (PL) under various laser excitation
conditions, that is, energy and power, is studied in monolayer and few-layer (FL) chemical …

Room-temperature high-speed electrical modulation of excitonic distribution in a monolayer semiconductor

G Zhu, L Zhang, W Li, X Shi, Z Zou, Q Guo, X Li… - Nature …, 2023 - nature.com
Excitons in monolayer semiconductors, benefitting from their large binding energies, hold
great potential towards excitonic circuits bridging nano-electronics and photonics. However …

Nanoscale Manipulation of Exciton–Trion Interconversion in a MoSe2 Monolayer via Tip-Enhanced Cavity-Spectroscopy

M Kang, SJ Kim, H Joo, Y Koo, H Lee, HS Lee… - Nano Letters, 2023 - ACS Publications
Emerging light–matter interactions in metal–semiconductor hybrid platforms have attracted
considerable attention due to their potential applications in optoelectronic devices. Here, we …

Ultrafast switching of trions in 2D materials by terahertz photons

T Venanzi, M Cuccu, R Perea-Causin, X Sun… - Nature …, 2024 - nature.com
External control of optical excitations is key for manipulating light–matter coupling and is
highly desirable for photonic technologies. Excitons in monolayer semiconductors emerged …

Quantum tunneling high-speed nano-excitonic modulator

H Lee, S Kim, S Eom, G Ji, SH Choi, H Joo… - Nature …, 2024 - nature.com
High-speed electrical control of nano-optoelectronic properties in two-dimensional
semiconductors is a building block for the development of excitonic devices, allowing the …

Electronic Structure of Trions in Layered Hybrid Lead Halide Perovskites

JI Climente, JL Movilla, J Planelles - The Journal of Physical …, 2024 - ACS Publications
A theoretical description of trions in layered hybrid organic–inorganic lead halide
perovskites is presented. The description is based on a variational effective mass model …

Free exciton and bound excitons on Pb and I vacancies and O and I substituting defects in PbI2: Photoluminescence and DFT calculations

S Golovynskyi, OI Datsenko, M Usman… - Applied Surface …, 2023 - Elsevier
A complete study of structure, chemical composition, morphology and photoluminescence
(PL) is performed for multilayer PbI 2 flakes. The reduction of thickness results in uneven …