Complex characterisation of Cr-doped α-Al2O3 for DBD applications
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU151208" target="_blank" >RIV/00216305:26620/24:PU151208 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/24:00135491
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1361-6463/ad1f30" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6463/ad1f30</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6463/ad1f30" target="_blank" >10.1088/1361-6463/ad1f30</a>
Alternative languages
Result language
angličtina
Original language name
Complex characterisation of Cr-doped α-Al2O3 for DBD applications
Original language description
Al(2)O(3 )samples doped with Cr2O3 up to 10vol.%(12.7wt%) were investigated with respect to their electrical, structural and morphological properties relevant to their use as a dielectric barrier in dielectric barrier discharges (DBDs). The surface properties were analysed using atomic force microscopy and a scanning electron microscope. The structural properties were investigated using x-ray diffraction (XRD) analysis. Regarding electrical properties, we measured the dielectric constant of the material, the discharge ignition voltage in a coplanar configuration in the air as well as in nitrogen, and the working domains (WDs) of atmospheric pressure Townsend discharge (APTD). The charge-trapping properties of the studied samples were measured by an electrostatic voltmeter. There was observed a significant ignition voltage decrease with maximal decrease for sample doped with 1vol.%Cr2O3 . For the samples doped with 10vol.% of Cr(2)O(3 )a rapid surface potential decay was observed that is important from the viewpoint of DBDs plasma filamentation due to the so-called surface memory effect. The WDs of the APTD showed variations, and it has been significantly extended for the 5Cr sample up to at least 24 kHz compared to other samples. Thus, the results presented in this paper show the potential of Cr-doped dielectric barriers and point towards future research directions.
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
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/LM2023039" target="_blank" >LM2023039: R&D centre for plasma and nanotechnology surface modifications</a><br>
Continuities
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Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physics D - Applied Physics
ISSN
0022-3727
e-ISSN
1361-6463
Volume of the periodical
57
Issue of the periodical within the volume
17
Country of publishing house
GB - UNITED KINGDOM
Number of pages
16
Pages from-to
„“-„“
UT code for WoS article
001154272800001
EID of the result in the Scopus database
2-s2.0-85184000639