Triboelectrification of Two-Dimensional Chemical Vapor Deposited WS2 at Nanoscale

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00333163" target="_blank" >RIV/68407700:21230/19:00333163 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1038/s41598-019-49107-y" target="_blank" >https://doi.org/10.1038/s41598-019-49107-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41598-019-49107-y" target="_blank" >10.1038/s41598-019-49107-y</a>

Result language
angličtina
Original language name
Triboelectrification of Two-Dimensional Chemical Vapor Deposited WS2 at Nanoscale
Original language description
Triboelectric properties of chemical vapor deposited WS2 nanoflakes have been characterized in nano-range by atomic force microscopy (AFM) and Kelvin force microscopy (KFM). The triboelectric process is dependent on the thickness of WS2 nanoflakes, and it is sensitive to the adsorbates like water molecules, as well as transferred Pt from the tip on the sample. The density of tribo-charge can be modified by applying various biases to the conductive Pt-coated tip during the frictional process. Tunneling of the tribo-charge into the gap between WS2 and the underlying substrate results in a long lifetime, which is about 100 times longer than conventional triboelectric charges. Moreover, we observe a positive correlation between the layer number and resistance to charge dissipation. Our finding can become the driving force for a new category of two-dimensional (2D) WS2 triboelectrically controllable nanodevices.
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
—
OECD FORD branch
20506 - Coating and films

Project
<a href="/en/project/EF15_003%2F0000464" target="_blank" >EF15_003/0000464: Centre of Advanced Photovoltaics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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