High-performance electronics and optoelectronics of monolayer tungsten diselenide full film from pre-seeding strategy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F21%3A10248251" target="_blank" >RIV/61989100:27710/21:10248251 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/inf2.12259" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/inf2.12259</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/inf2.12259" target="_blank" >10.1002/inf2.12259</a>
Alternative languages
Result language
angličtina
Original language name
High-performance electronics and optoelectronics of monolayer tungsten diselenide full film from pre-seeding strategy
Original language description
Tungsten diselenide (WSe2) possesses extraordinary electronic properties for applications in electronics, optoelectronics, and emerging exciton physics. The synthesis of monolayer WSe2 film is of topmost for device arrays and integrated circuits. The monolayer WSe2 film has yet been reported by thermal chemical vapor deposition (CVD) approach, and the nucleation mechanism remains unclear. Here, we report a pre-seeding strategy for finely regulating the nuclei density at an early stage and achieving a fully covered film after chemical vapor deposition growth. The underlying mechanism is heterogeneous nucleation from the pre-seeding tungsten oxide nanoparticles. At first, we optimized the precursor concentration for pre-seeding. Besides, we confirmed the superiority of the pre-seeding method, compared with three types of substrate pretreatments, including nontreatment, sonication in an organic solvent, and oxygen plasma. Eventually, the high-quality synthetic WSe2 monolayer film exhibits excellent device performance in field-effect transistors and photodetectors. We extracted thermodynamic activation energy from the nucleation and growth data. Our results may shed light on the wafer-scale production of homogeneous monolayer films of WSe2, other 2D materials, and their van der Waals heterostructures.
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
20400 - Chemical engineering
Result continuities
Project
<a href="/en/project/EF16_019%2F0000853" target="_blank" >EF16_019/0000853: Institute of Environmental Technology - Excellent Research</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Infomat
ISSN
2567-3165
e-ISSN
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Volume of the periodical
3
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
1455-1469
UT code for WoS article
000713758700001
EID of the result in the Scopus database
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