Numerical investigation on the influence of the Soret effect on graphene growth in chemical vapor deposition

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F23%3A10252889" target="_blank" >RIV/61989100:27710/23:10252889 - isvavai.cz</a>
Result on the web
<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:000999040800001" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:000999040800001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jcrysgro.2023.127253" target="_blank" >10.1016/j.jcrysgro.2023.127253</a>

Result language
angličtina
Original language name
Numerical investigation on the influence of the Soret effect on graphene growth in chemical vapor deposition
Original language description
The chemical vapor deposition (CVD) is highly feasible, controllable and has great potential in the production of large-area and high-quality graphene. Previous studies have focused on surface reaction mechanisms, but it is equally important to understand how reactants are transported to the substrate. Due to the commonly large temperature gradient in the CVD reactor, the impact of Soret effect on the species transportation is nonnegligible. In this article, the influences of the Soret effect under low pressure and atmospheric pressure conditions are systematically studied using computational fluid dynamics. Due to the difference in the composition of the mixture under these two conditions, the impact of Soret effect on diffusion of the methane molecule is opposite. The diffusion behavior caused by the Soret effect will influence the methane distribution and hence the graphene growth rate. At low pressure, the growth rate will decrease gradually when the substrate position moves along the flow direction. At atmospheric pressure, the Soret effect will increase the carbon deposition rate when the Cu substrate is arranged at the front half of the furnace.
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
20500 - Materials engineering

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)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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