Tuning the physical properties of ultrathin transition-metal dichalcogenides via strain engineering

Y Yan, S Ding, X Wu, J Zhu, D Feng, X Yang, F Li - RSC advances, 2020 - pubs.rsc.org
Transition-metal dichalcogenides (TMDs) have become one of the recent frontiers and
focuses in two-dimensional (2D) materials fields thanks to their superior electronic, optical …

Strain-induced half-valley metals and topological phase transitions in monolayers

H Huan, Y Xue, B Zhao, G Gao, H Bao, Z Yang - Physical Review B, 2021 - APS
The target of valleytronics developments is to manipulate the valley degree of freedom and
utilize it in microelectronics as charge and spin degrees of freedom. Based on first-principles …

Optical Inspection of 2D Materials: From Mechanical Exfoliation to Wafer‐Scale Growth and Beyond

YC Lee, SW Chang, SH Chen, SL Chen… - Advanced …, 2022 - Wiley Online Library
Optical inspection is a rapid and non‐destructive method for characterizing the properties of
two‐dimensional (2D) materials. With the aid of optical inspection, in situ and scalable …

Strain-tunable orbital, spin-orbit, and optical properties of monolayer transition-metal dichalcogenides

K Zollner, PEF Junior, J Fabian - Physical Review B, 2019 - APS
When considering transition-metal dichalcogenides (TMDCs) in van der Waals
heterostructures for periodic ab initio calculations, usually, lattice mismatch is present, and …

Spatiotemporally controlled room-temperature exciton transport under dynamic strain

K Datta, Z Lyu, Z Li, T Taniguchi, K Watanabe… - Nature …, 2022 - nature.com
Two-dimensional transition metal dichalcogenides provide an attractive platform for studying
strain-dependent exciton transport at room temperature due to large exciton binding energy …

Switchable, Tunable, and Directable Exciton Funneling in Periodically Wrinkled WS2

J Lee, SJ Yun, C Seo, K Cho, TS Kim, GH An… - Nano Letters, 2020 - ACS Publications
The extreme elastic strain of monolayer transition metal dichalcogenides provides an ideal
platform to achieve efficient exciton funneling via local strain modulation; however, studies …

Piezoelectric Modulation of Excitonic Properties in Monolayer WSe2 under Strong Dielectric Screening

K Datta, Z Li, Z Lyu, PB Deotare - ACS nano, 2021 - ACS Publications
We investigate the interaction of excitons in monolayer WSe2 with the piezoelectric field of
surface acoustic wave (SAW) at room temperature using photoluminescence (PL) …

Nonvolatile Control of Valley Polarized Emission in 2D WSe2-AlScN Heterostructures

S Singh, KH Kim, K Jo, P Musavigharavi, B Kim… - ACS …, 2024 - ACS Publications
Achieving robust and electrically controlled valley polarization in monolayer transition metal
dichalcogenides (ML-TMDs) is a frontier challenge for realistic valleytronic applications …

Strain control of exciton and trion spin-valley dynamics in monolayer transition metal dichalcogenides

Z An, P Soubelet, Y Zhumagulov, M Zopf, A Delhomme… - Physical Review B, 2023 - APS
The electron-hole exchange interaction is a fundamental mechanism that drives valley
depolarization via intervalley exciton hopping in semiconductor multivalley systems. Here …

Strain-dependent exciton diffusion in transition metal dichalcogenides

R Rosati, S Brem, R Perea-Causín, R Schmidt… - 2D …, 2020 - iopscience.iop.org
Monolayers of transition metal dichalcogenides have a remarkable excitonic landscape with
deeply bound bright and dark exciton states. Their properties are strongly affected by lattice …