Annealing, design and long-term operation of graphite crucibles for the growth of epitaxial graphene on SiC

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0198685" target="_blank" >RIV/00216305:26620/26:0198685 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/25:10502955

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0022024824004263?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0022024824004263?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jcrysgro.2024.127988" target="_blank" >10.1016/j.jcrysgro.2024.127988</a>

Result language

angličtina

Original language name

Annealing, design and long-term operation of graphite crucibles for the growth of epitaxial graphene on SiC

Original language description

We describe the annealing, geometry, storage, and lifespan of graphite crucibles for the growth of epitaxial graphene on SiC. We monitor residual gas content during the annealing of the as-manufactured graphite crucible before the growth of the first graphene samples. The high-temperature evolution of carbon monoxide points towards the reaction of solid carbon and residual water. Therefore, we propose a procedure consisting of four annealing cycles to eliminate this reaction. The residual gas evolution after long-term storage of well- baked crucibles in the air shows a similar increase in water and carbon monoxide as that in unbaked crucibles. Hence, we propose the crucible storage in argon ambient. Further, we discuss the role of the crucible shape on graphene quality. Namely, we compare the cylindrical semi-closed crucible to the flat opened crucibles. The flow-aided gas exchange in the opened crucible is more beneficial for graphene growth than the diffusion- driven gas exchange in the semi-closed cylindrical crucibles. The flow-aided gas exchange leads to more efficient removal of outgassed residual contaminants, thus outperforming the advantage of increased silicon vapor pressure in the semi-closed cylindrical crucible. We also study the graphite crucible lifespan, showing that the aged crucible leads to the enhanced inhomogeneous strain in graphene.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10401 - Organic chemistry

Project

<a href="/en/project/GA22-04551S" target="_blank" >GA22-04551S: Growth of organic semiconductors on graphene: from the first monolayer formation to molecular multilayers</a><br>

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

Name of the periodical

Journal of crystal growth

ISSN

0022-0248

e-ISSN

1873-5002

Volume of the periodical

651

Issue of the periodical within the volume

127988

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

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UT code for WoS article

001453165800001

EID of the result in the Scopus database

2-s2.0-85209590707