Electronic properties and circuit applications of networks of electrochemically exfoliated 2D nanosheets

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43933827" target="_blank" >RIV/60461373:22310/25:43933827 - isvavai.cz</a>
Result on the web
<a href="https://www.nature.com/articles/s41467-025-64100-y" target="_blank" >https://www.nature.com/articles/s41467-025-64100-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41467-025-64100-y" target="_blank" >10.1038/s41467-025-64100-y</a>

Result language
angličtina
Original language name
Electronic properties and circuit applications of networks of electrochemically exfoliated 2D nanosheets
Original language description
High aspect-ratio 2D materials are promising for solution-processed electronics, yet the factors controlling exfoliation remain unclear and relatively few solution-processed networks have been electrically characterized. Here we combine theory and experiment to show that electrochemical exfoliation of layered crystals with sufficient stiffness-anisotropy (in-plane/out-of-plane Young's modulus ratio >1.7) yields high aspect-ratio nanosheets with intrinsic mobilities mu(NS) = 20-75 cm(2)V(-1)s(-1) across transition metal dichalcogenides and related alloys. Impedance spectroscopy indicates that solution-deposited networks can achieve junction-to-nanosheet resistance ratios (R-J/R-NS) as low as similar to 3, supporting theoretical predictions that mu(NS)/mu(Net) = R-J/R-NS + 1 and suggesting that further reductions in R-J will increase mu(Net) toward the nanosheet limit (mu(NS)). These networks display n-type, p-type, and ambipolar behaviour, with on/off ratios up to 10(5) and mobilities mu(Net) = 13 cm(2)V(-1)s(-1). Here, we show that such high-performing 2D materials enable functional solution-processed circuits, including inverters, buffers, a 4-bit digital-to-analog converter, and a circuit capable of encoding and decoding 7-bit ASCII messages.
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
10700 - Other natural sciences

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)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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