Počet záznamů: 1

The use of sample positioning to control defect creation by oxygen plasma in isotopically labelled bilayer graphene membranes

SYSNO ASEP	0541683
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	The use of sample positioning to control defect creation by oxygen plasma in isotopically labelled bilayer graphene membranes
Tvůrce(i)	Guerra, Valentino Libero Pio (UFCH-W)_{ORCID, RID, SAI} Valeš, Václav (UFCH-W)_{RID, ORCID} Mikšátko, Jiří (UFCH-W) Plšek, Jan (UFCH-W)_{RID, ORCID} Drogowska-Horna, Karolina A. (UFCH-W) Volochanskyi, Oleksandr (UFCH-W)_{ORCID, SAI} Kalbáč, Martin (UFCH-W)_{RID, ORCID}
Zdroj.dok.	RSC Advances. - : Royal Society of Chemistry Roč. 11, č. 17 (2021), s. 10316-10322
Poč.str.	7 s.
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	graphene membranes ; oxygen plasma ; Raman spectroscopy
Vědní obor RIV	CF - Fyzikální chemie a teoretická chemie
Obor OECD	Physical chemistry
CEP	GX20-08633X GA ČR - Grantová agentura ČR
	EF16_026/0008382 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
Způsob publikování	Open access
Institucionální podpora	UFCH-W - RVO:61388955
UT WOS	000629707400056
EID SCOPUS	85102727646
DOI	10.1039/d1ra01249e
Anotace	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.
Pracoviště	Ústav fyzikální chemie J.Heyrovského
Kontakt	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Rok sběru	2022
Elektronická adresa	http://hdl.handle.net/11104/0319213

Počet záznamů: 1