Changes in the Raman Spectrum of Monolayer Graphene under Compression/Stretching Strain in Graphene/Piezoelectric Crystal Structures.
LiNbO3 domain structure
PCA
Raman spectroscopy
graphene
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
14 Jan 2023
14 Jan 2023
Historique:
received:
24
11
2022
revised:
09
01
2023
accepted:
12
01
2023
entrez:
21
1
2023
pubmed:
22
1
2023
medline:
22
1
2023
Statut:
epublish
Résumé
Results from studying the effect of an applied electric voltage on the Raman spectrum of graphene deposited on a lithium niobate crystal substrate with a ferroelectric domain structure are presented. The use of the principal component method for data processing in combination with correlation analysis made it possible to reveal the contribution to the change in the spectra associated with the linear deformation of the substrate due to the inverse piezoelectric effect. An effect of the graphene coating peeling was found. Furthermore, bending deformations of the graphene coating associated with the presence of a relief on the substrate were found. An analysis of the change in the spectra of graphene under the application of an electric voltage made it possible to determine the height of this relief.
Identifiants
pubmed: 36678103
pii: nano13020350
doi: 10.3390/nano13020350
pmc: PMC9866261
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Russian Ministry of Science and Higher Education
ID : Grant No. 075-15-2020-791
Références
Nature. 2005 Nov 10;438(7065):197-200
pubmed: 16281030
Nano Lett. 2010 Sep 8;10(9):3453-8
pubmed: 20695450
Sci Rep. 2017 May 11;7(1):1767
pubmed: 28496129
RSC Adv. 2019 Jan 8;9(2):863-877
pubmed: 35517633