UItra-low friction and edge-pinning effect in large-lattice-mismatch van der Waals heterostructures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00350894" target="_blank" >RIV/68407700:21230/22:00350894 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1038/s41563-021-01058-4" target="_blank" >https://doi.org/10.1038/s41563-021-01058-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41563-021-01058-4" target="_blank" >10.1038/s41563-021-01058-4</a>
Alternative languages
Result language
angličtina
Original language name
UItra-low friction and edge-pinning effect in large-lattice-mismatch van der Waals heterostructures
Original language description
MoS2/graphite and MoS2/h-BN interfaces are shown to have ultra-low friction coefficients, whereas edges and interface steps mainly contribute to the friction force. Two-dimensional heterostructures are excellent platforms to realize twist-angle-independent ultra-low friction due to their weak interlayer van der Waals interactions and natural lattice mismatch. However, for finite-size interfaces, the effect of domain edges on the friction process remains unclear. Here we report the superlubricity phenomenon and the edge-pinning effect at MoS2/graphite and MoS2/hexagonal boron nitride van der Waals heterostructure interfaces. We found that the friction coefficients of these heterostructures are below 10(-6). Molecular dynamics simulations corroborate the experiments, which highlights the contribution of edges and interface steps to friction forces. Our experiments and simulations provide more information on the sliding mechanism of finite low-dimensional structures, which is vital to understand the friction process of laminar solid lubricants.
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
20501 - Materials engineering
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
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
NATURE MATERIALS
ISSN
1476-1122
e-ISSN
1476-4660
Volume of the periodical
21
Issue of the periodical within the volume
1
Country of publishing house
DE - GERMANY
Number of pages
7
Pages from-to
47-53
UT code for WoS article
000681535900002
EID of the result in the Scopus database
2-s2.0-85111926883