The Electrical and Morphological Characteristics of Networks of Mechanically Exfoliated Nanosheets
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43933866" target="_blank" >RIV/60461373:22310/25:43933866 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/smsc.202500417" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/smsc.202500417</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/smsc.202500417" target="_blank" >10.1002/smsc.202500417</a>
Alternative languages
Result language
angličtina
Original language name
The Electrical and Morphological Characteristics of Networks of Mechanically Exfoliated Nanosheets
Original language description
Solution-processed nanosheet networks show great promise for the field of printed electronics due to their inherent scalability and competitive electrical properties. However, recent progress has allowed for the production of nanosheet networks by a dry, roll-to-roll mechanical exfoliation process. While this method is promising for producing low-cost devices, the electrical properties of such networks are poorly understood and will require elucidation to enable optimization. Herein, the morphological and electrical properties of mechanically exfoliated networks of MoS2 are investigated. 3D images reveal that the networks show low porosity (11 +/- 2%) and a high degree of in-plane alignment. The network conductivity is dependent on annealing temperature and reaches a maximum of 11 +/- 0.6 S m-1, when annealed at 300 degrees C. The networks show n-type behavior with a mobility of 0.8 +/- 0.1 cm2 V-1 s-1. Electrical impedance spectroscopy measurements reveal that this relatively low network mobility is caused by a combination of high inter-nanosheet resistance (890 +/- 150 k Omega) and low intrinsic mobility of the nanosheets (7 +/- 2 cm2 V-1 s-1). Temperature-dependent conductivity measurements show activated hopping as the internanosheet conduction mechanism near room temperature, with an activation energy of 61.9 +/- 0.2 meV.
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
20500 - Materials engineering
Result continuities
Project
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Continuities
R - Projekt Ramcoveho programu EK
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
Small Science
ISSN
2688-4046
e-ISSN
2688-4046
Volume of the periodical
5
Issue of the periodical within the volume
12
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
"e202500417"
UT code for WoS article
001596637900001
EID of the result in the Scopus database
2-s2.0-105019255356