High-κ Wide-Gap Layered Dielectric for Two-Dimensional van der Waals Heterostructures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929680" target="_blank" >RIV/60461373:22310/24:43929680 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsnano.3c10411" target="_blank" >https://pubs.acs.org/doi/10.1021/acsnano.3c10411</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsnano.3c10411" target="_blank" >10.1021/acsnano.3c10411</a>
Alternative languages
Result language
angličtina
Original language name
High-κ Wide-Gap Layered Dielectric for Two-Dimensional van der Waals Heterostructures
Original language description
van der Waals heterostructures of two-dimensional materials have unveiled frontiers in condensed matter physics, unlocking unexplored possibilities in electronic and photonic device applications. However, the investigation of wide-gap, high-kappa layered dielectrics for devices based on van der Waals structures has been relatively limited. In this work, we demonstrate an easily reproducible synthesis method for the rare-earth oxyhalide LaOBr, and we exfoliate it as a 2D layered material with a measured static dielectric constant of 9 and a wide bandgap of 5.3 eV. Furthermore, our research demonstrates that LaOBr can be used as a high-kappa dielectric in van der Waals field-effect transistors with high performance and low interface defect concentrations. Additionally, it proves to be an attractive choice for electrical gating in excitonic devices based on 2D materials. Our work demonstrates the versatile realization and functionality of 2D systems with wide-gap and high-kappa van der Waals dielectric environments.
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
21001 - Nano-materials (production and properties)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
ACS Nano
ISSN
1936-0851
e-ISSN
1936-086X
Volume of the periodical
2024
Issue of the periodical within the volume
18, 15
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
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UT code for WoS article
001195019600001
EID of the result in the Scopus database
2-s2.0-85189524343