Sulfur isotope engineering in heterostructures of transition metal dichalcogenides
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F25%3A00605502" target="_blank" >RIV/61388955:_____/25:00605502 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/25:10503830
Result on the web
<a href="https://hdl.handle.net/11104/0363224" target="_blank" >https://hdl.handle.net/11104/0363224</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d4na00897a" target="_blank" >10.1039/d4na00897a</a>
Alternative languages
Result language
angličtina
Original language name
Sulfur isotope engineering in heterostructures of transition metal dichalcogenides
Original language description
Heterostructuring of two-dimensional materials offers a robust platform to precisely tune optoelectronic properties through interlayer interactions. Here we achieved a strong interlayer coupling in a double-layered heterostructure of sulfur isotope-modified adjacent MoS2 monolayers via two-step chemical vapor deposition growth. The strong interlayer coupling in the MoS2(34S)/MoS2(32S) was affirmed by low-frequency shear and breathing modes in the Raman spectra. The photoluminescence emission spectra showed that isotope-induced changes in the electronic structure and strong interlayer coupling led to the suppression of intralayer excitons, resulting in dominant emission from the MoS2(32S) layer. Time-resolved photoluminescence experiments indicated faster lifetimes in the MoS2(34S)/MoS2(32S) heterostructure compared to the conventional bilayers with the natural isotopic abundance, highlighting nuanced interlayer exciton dynamics due to the isotopic modification. This study underscores the great potential of isotope engineering in van der Waals heterostructures, as it enables tailoring the band structure and exciton dynamics at the nuclear level without the need of chemical modification.
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
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/GA22-17517S" target="_blank" >GA22-17517S: Mesoscopic origami from van der Waals heterostructures</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nanoscale Advances
ISSN
2516-0230
e-ISSN
2516-0230
Volume of the periodical
7
Issue of the periodical within the volume
5
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
1276-1286
UT code for WoS article
001400651200001
EID of the result in the Scopus database
2-s2.0-85215686590