Unknown

Dataset Information

0

Nano-optical Visualization of Interlayer Interactions in WSe2/WS2 Heterostructures.

ABSTRACT: The interplay between excitons and phonons governs the optical and electronic properties of transition metal dichalcogenides (TMDs). Even though a number of linear and nonlinear optical-, electron-, and photoelectron-based approaches have been developed and/or adopted to characterize excitons and phonons in single/few-layer TMDs and their heterostructures, no existing method is capable of directly probing ultralow-frequency and interlayer phonons on the nanoscale. To this end, we developed ultralow-frequency tip-enhanced Raman spectroscopy, which allows spectrally and spatially resolved chemical and structural nanoimaging of WSe2/WS2 heterostructures. In this work, we apply this method to analyze phonons in nanobubbles that are sustained in these heterobilayers. Our method is capable of directly probing interlayer (de)coupling using our novel structurally sensitive nano-optical probe and the interplay between excitons and interlayer/intralayer phonons through correlation analysis of the recorded spectral images.

SUBMITTER: Rodriguez A 

PROVIDER: S-EPMC9335877 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

Nano-optical Visualization of Interlayer Interactions in WSe<sub>2</sub>/WS<sub>2</sub> Heterostructures.

Rodriguez Alvaro A   Krayev Andrey A   Velický Matěj M   Frank Otakar O   El-Khoury Patrick Z PZ  

The journal of physical chemistry letters 20220621 25

The interplay between excitons and phonons governs the optical and electronic properties of transition metal dichalcogenides (TMDs). Even though a number of linear and nonlinear optical-, electron-, and photoelectron-based approaches have been developed and/or adopted to characterize excitons and phonons in single/few-layer TMDs and their heterostructures, no existing method is capable of directly probing ultralow-frequency and interlayer phonons on the nanoscale. To this end, we developed ultra  ...[more]

Similar Datasets

Unknown Photocarrier generation from interlayer charge-transfer transitions in WS<sub>2</sub>-graphene heterostructures.
| S-EPMC5804583 | biostudies-literature
Unknown Localized interlayer excitons in MoSe<sub>2</sub>-WSe<sub>2</sub> heterostructures without a moire potential.
| S-EPMC9468147 | biostudies-literature
Unknown Strong interaction between interlayer excitons and correlated electrons in WSe<sub>2</sub>/WS<sub>2</sub> moire superlattice.
| S-EPMC8203657 | biostudies-literature
Unknown Radiative pattern of intralayer and interlayer excitons in two-dimensional WS<sub>2</sub>/WSe<sub>2</sub> heterostructure.
| S-EPMC9050751 | biostudies-literature
Unknown Observation of interlayer plasmon polaron in graphene/WS&lt;sub&gt;2&lt;/sub&gt; heterostructures.
| S-EPMC11519396 | biostudies-literature
Unknown Twist-angle-dependent momentum-space direct and indirect interlayer excitons in WSe<sub>2</sub>/WS<sub>2</sub> heterostructure.
| S-EPMC10267672 | biostudies-literature
Unknown Tuning Coupling Behavior of Stacked Heterostructures Based on MoS<sub>2</sub>, WS<sub>2</sub>, and WSe<sub>2</sub>.
| S-EPMC5356184 | biostudies-literature
Unknown Interlayer Exciton-Phonon Coupling in MoSe&lt;sub&gt;2&lt;/sub&gt;/WSe&lt;sub&gt;2&lt;/sub&gt; Heterostructures.
| S-EPMC11440638 | biostudies-literature
Unknown Tunable Control of Interlayer Excitons in WS<sub>2</sub>/MoS<sub>2</sub> Heterostructures via Strong Coupling with Enhanced Mie Resonances.
| S-EPMC6548949 | biostudies-literature
Unknown Enhancing and controlling valley magnetic response in MoS<sub>2</sub>/WS<sub>2</sub> heterostructures by all-optical route.
| S-EPMC6748949 | biostudies-literature