The use of sample positioning to control defect creation by oxygen plasma in isotopically labelled bilayer graphene membranes
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F21%3A00541683" target="_blank" >RIV/61388955:_____/21:00541683 - isvavai.cz</a>
Výsledek na webu
<a href="http://hdl.handle.net/11104/0319213" target="_blank" >http://hdl.handle.net/11104/0319213</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d1ra01249e" target="_blank" >10.1039/d1ra01249e</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The use of sample positioning to control defect creation by oxygen plasma in isotopically labelled bilayer graphene membranes
Popis výsledku v původním jazyce
Monolayer and isotopically labelled bilayer graphene membranes were prepared on grids for transmission electron microscopy (TEM). In order to create defects in the graphene layers in a controlled way, we studied the sensitivity of the individual graphene layers to the oxygen plasma treatment. We tested samples with different configurations by varying the order of the transfer of layers and changing the orientation of the samples with respect to the plasma chamber. Using Raman spectroscopy, HRTEM and X-ray photoelectron spectroscopy, we demonstrated defect formation and determined the quantity and chemical composition of the defects. By keeping the sample structure and the setup of the experiment unchanged, the significant role of the sample orientation with respect to the chamber was demonstrated. The effect was accounted for by the variation of the accessibility of the sample surface for the reactive species. Therefore, this effect can be used to control the degree of damage in each layer, resulting in differing numbers of defects present on each side of the sample.
Název v anglickém jazyce
The use of sample positioning to control defect creation by oxygen plasma in isotopically labelled bilayer graphene membranes
Popis výsledku anglicky
Monolayer and isotopically labelled bilayer graphene membranes were prepared on grids for transmission electron microscopy (TEM). In order to create defects in the graphene layers in a controlled way, we studied the sensitivity of the individual graphene layers to the oxygen plasma treatment. We tested samples with different configurations by varying the order of the transfer of layers and changing the orientation of the samples with respect to the plasma chamber. Using Raman spectroscopy, HRTEM and X-ray photoelectron spectroscopy, we demonstrated defect formation and determined the quantity and chemical composition of the defects. By keeping the sample structure and the setup of the experiment unchanged, the significant role of the sample orientation with respect to the chamber was demonstrated. The effect was accounted for by the variation of the accessibility of the sample surface for the reactive species. Therefore, this effect can be used to control the degree of damage in each layer, resulting in differing numbers of defects present on each side of the sample.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10403 - Physical chemistry
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
RSC Advances
ISSN
2046-2069
e-ISSN
2046-2069
Svazek periodika
11
Číslo periodika v rámci svazku
17
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
7
Strana od-do
10316-10322
Kód UT WoS článku
000629707400056
EID výsledku v databázi Scopus
2-s2.0-85102727646