Wrinkle development in graphene sheets with patterned nano-protrusions: A molecular dynamics study

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F21%3A00535018" target="_blank" >RIV/61388955:_____/21:00535018 - isvavai.cz</a>
Alternative codes found
RIV/61388998:_____/21:00535018
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S000862232031071X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S000862232031071X?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.carbon.2020.11.003" target="_blank" >10.1016/j.carbon.2020.11.003</a>

Result language
angličtina
Original language name
Wrinkle development in graphene sheets with patterned nano-protrusions: A molecular dynamics study
Original language description
We perform large-scale molecular dynamics simulations to investigate wrinkling phenomena in uncompressed and pre-compressed graphene sheets with protrusions introduced by a hexagonal array ofnnanoparticles with varying spacing. The analysis includes the additional role of the nanoparticle size in conjunction with the cohesive energy between graphene and the particles in the formation of prominent adhesive profiles, or protrusions, in the sheets. The results throw new light on the underlying nucleation and propagation mechanisms of graphene wrinkles that emanate from equidistant, patterned protrusions. We find in the simulations that wrinkle morphology and the onset of wrinkling patterning are governed by a limited number of predominant factors that also determine the prominence of the protrusion profiles. The discussion provides a rationale to the development of wrinkle patterns with predictable geometry. We ascertain that the wrinkle topographies detected in our sheets are in good agreement with self-supported graphene experiments. The observed wrinkling mechanisms and the resulting patterning in our graphene simulations can pave the way to designing new tailor-made metamaterials based on suspended 2D materials.
Czech name
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Czech description
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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
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

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
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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