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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F22%3A00558476" target="_blank" >RIV/61388955:_____/22:00558476 - isvavai.cz</a>

Result on the web

<a href="http://hdl.handle.net/11104/0332122" target="_blank" >http://hdl.handle.net/11104/0332122</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jpclett.2c01250" target="_blank" >10.1021/acs.jpclett.2c01250</a>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Physical Chemistry Letters

ISSN

1948-7185

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

25

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

5854-5859

UT code for WoS article

000819525700001

EID of the result in the Scopus database

2-s2.0-85133214312