Exploring morphological diversity of Q-carbon structures through laser energy density variation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927987" target="_blank" >RIV/60461373:22310/23:43927987 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22320/23:43927987 RIV/60461373:22810/23:43927987
Result on the web
<a href="https://doi.org/10.1016/j.diamond.2023.110511" target="_blank" >https://doi.org/10.1016/j.diamond.2023.110511</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.diamond.2023.110511" target="_blank" >10.1016/j.diamond.2023.110511</a>
Alternative languages
Result language
angličtina
Original language name
Exploring morphological diversity of Q-carbon structures through laser energy density variation
Original language description
This article presents a study on preparing and characterising Q-carbon structures through ultrafast cooling of annealed amorphous carbon using a nanosecond KrF excimer laser. The experiments were conducted under high vacuum conditions. Different Q-carbon structures resembling fibers, clusters, microdots, and combinations of clusters with nanodots were successfully prepared by varying the beam energy density (ranging from 0.6 to 1.8 J cm−2) during the pulsed laser annealing process. The resulting changes in surface morphology were analysed using atomic force microscopy (AFM) and scanning electron microscopy (SEM). Additionally, the modified forms of carbon were investigated through energy-dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. The findings reveal that increasing the beam energy density during the pulsed laser annealing process led to a corresponding increase in the percentage of sp3 hybridisation in the samples. The highest sp3 content, reaching 83 %, was observed in the sample with the highest energy value of 1.8 J cm−2, where the fastest undercooling occurred. In addition, we evaluated the antibacterial potential of the prepared sample (1.0 J) using two bacterial strains, one gram-positive of S. aureus and one gram-negative of E. coli. © 2023 Elsevier B.V.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA20-02120S" target="_blank" >GA20-02120S: Q-carbon, preparation of unique forms of carbon nanostructures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
DIAMOND AND RELATED MATERIALS
ISSN
0925-9635
e-ISSN
1879-0062
Volume of the periodical
140
Issue of the periodical within the volume
DEC 2023
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
"110511/1"-10
UT code for WoS article
001096634900001
EID of the result in the Scopus database
2-s2.0-85174451286