Addressing Individual Layers and Their Optical Properties in Artificial MoS<sub>2</sub> Bilayers via Sulfur Isotope Labeling
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F24%3A00588384" target="_blank" >RIV/61388955:_____/24:00588384 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0355285" target="_blank" >https://hdl.handle.net/11104/0355285</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpcc.4c03132" target="_blank" >10.1021/acs.jpcc.4c03132</a>
Alternative languages
Result language
angličtina
Original language name
Addressing Individual Layers and Their Optical Properties in Artificial MoS<sub>2</sub> Bilayers via Sulfur Isotope Labeling
Original language description
The physicochemical properties of van der Waals (vdW) heterostructures are driven by the delicate interactions between the individual layers in a multilayer stack. While addressing the monolayers of different compositions in the multilayer is feasible, exploring the intrinsic properties of the monolayers of the same composition within a multilayer is extremely challenging. This becomes of utmost importance in energy conversion and storage concepts based on layered vdW materials. For example, the charge distribution on the individual layers can be determined, and the behavior can be disentangled. We introduce sulfur isotope labeling as a powerful tool for separately addressing monolayers in vdW heterostructures composed of transition metal disulfides. Using chemical vapor deposition (CVD), we prepared monolayers of MoS2 using natural sulfur (S-Nat) and (34)sulfur (S-34) as precursors. Artificial bilayers were then prepared by transferring (MoS2)-S-34 onto (MoS2)-S-Nat. Thanks to the different masses of S-Nat and S-34, we were able to disentangle the spectral fingerprints of phonons and excitons in the two layers using Raman and photoluminescence microspectroscopy. Also, the charge distribution on the individual layers was revealed through Raman spectra analysis. Our work thus provides a different perspective for understanding the functionalities and optical properties of smart architecture based on transition metal chalcogenides.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
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
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physical Chemistry C
ISSN
1932-7447
e-ISSN
1932-7455
Volume of the periodical
128
Issue of the periodical within the volume
30
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
12575-12581
UT code for WoS article
001275507600001
EID of the result in the Scopus database
2-s2.0-85200393120