Inorganic 2D luminescent materials: structure, luminescence modulation, and applications

L Su, X Fan, T Yin, H Wang, Y Li, F Liu… - Advanced Optical …, 2020 - Wiley Online Library
Inorganic luminescent semiconductors have triggered burgeoning research interest in all‐
solid‐state light‐emitting devices over the past decades owing to their band‐to‐band …

Time-domain investigations of coherent phonons in van der waals thin films

F Vialla, N Del Fatti - Nanomaterials, 2020 - mdpi.com
Coherent phonons can be launched in materials upon localized pulsed optical excitation,
and be subsequently followed in time-domain, with a sub-picosecond resolution, using a …

Strain control of exciton–phonon coupling in atomically thin semiconductors

I Niehues, R Schmidt, M Druppel, P Marauhn… - Nano …, 2018 - ACS Publications
Semiconducting transition metal dichalcogenide (TMDC) monolayers have exceptional
physical properties. They show bright photoluminescence due to their unique band structure …

Dynamics and efficient conversion of excitons to trions in non-uniformly strained monolayer WS2

MG Harats, JN Kirchhof, M Qiao, K Greben… - Nature Photonics, 2020 - nature.com
In recent years, there has been ongoing effort in achieving efficient transport of excitons in
monolayer transition metal dichalcogenides subjected to highly non-uniform strain. Here we …

Dark excitons in transition metal dichalcogenides

E Malic, M Selig, M Feierabend, S Brem… - Physical Review …, 2018 - APS
Monolayer transition metal dichalcogenides (TMDs) exhibit a remarkably strong Coulomb
interaction that manifests in tightly bound excitons. Due to the complex electronic band …

Nonclassical Exciton Diffusion in Monolayer

K Wagner, J Zipfel, R Rosati, E Wietek, JD Ziegler… - Physical Review Letters, 2021 - APS
We experimentally demonstrate time-resolved exciton propagation in a monolayer
semiconductor at cryogenic temperatures. Monitoring phonon-assisted recombination of …

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 …

Phonon-assisted photoluminescence from indirect excitons in monolayers of transition-metal dichalcogenides

S Brem, A Ekman, D Christiansen, F Katsch, M Selig… - Nano …, 2020 - ACS Publications
The photoluminescence (PL) spectrum of transition-metal dichalcogenides (TMDs) shows a
multitude of emission peaks below the bright exciton line, and not all of them have been …

Tip‐Induced Nano‐Engineering of Strain, Bandgap, and Exciton Funneling in 2D Semiconductors

Y Koo, Y Kim, SH Choi, H Lee, J Choi… - Advanced …, 2021 - Wiley Online Library
The tunability of the bandgap, absorption and emission energies, photoluminescence (PL)
quantum yield, exciton transport, and energy transfer in transition metal dichalcogenide …

Disentangling many-body effects in the coherent optical response of 2D semiconductors

C Trovatello, F Katsch, Q Li, X Zhu, A Knorr… - Nano Letters, 2022 - ACS Publications
In single-layer (1L) transition metal dichalcogenides, the reduced Coulomb screening
results in strongly bound excitons which dominate the linear and the nonlinear optical …