Mapping the conductivity of graphene with Electrical Resistance Tomography.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
23 Jul 2019
23 Jul 2019
Historique:
received:
11
01
2019
accepted:
03
07
2019
entrez:
25
7
2019
pubmed:
25
7
2019
medline:
25
7
2019
Statut:
epublish
Résumé
Electronic applications of large-area graphene films require rapid and accurate methods to map their electrical properties. Here we present the first electrical resistance tomography (ERT) measurements on large-area graphene samples, obtained with a dedicated measurement setup and reconstruction software. The outcome of an ERT measurement is a map of the graphene electrical conductivity. The same setup allows to perform van der Pauw (vdP) measurements of the average conductivity. We characterised the electrical conductivity of chemical-vapour deposited graphene samples by performing ERT, vdP and scanning terahertz time-domain spectroscopy (TDS), the last one by means of a commercial instrument. The measurement results are compared and discussed, showing the potential of ERT as an accurate and reliable technique for the electrical characterization of graphene samples.
Identifiants
pubmed: 31337774
doi: 10.1038/s41598-019-46713-8
pii: 10.1038/s41598-019-46713-8
pmc: PMC6650424
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
10655Subventions
Organisme : European Association of National Metrology Institutes (EURAMET)
ID : 16NRM01 GRACE
Organisme : European Association of National Metrology Institutes (EURAMET)
ID : 16NRM01 GRACE
Organisme : European Association of National Metrology Institutes (EURAMET)
ID : 16NRM01
Organisme : European Association of National Metrology Institutes (EURAMET)
ID : 16NRM01
Organisme : European Association of National Metrology Institutes (EURAMET)
ID : 16NRM01
Organisme : European Association of National Metrology Institutes (EURAMET)
ID : 16NRM01
Organisme : European Association of National Metrology Institutes (EURAMET)
ID : 16NRM01
Organisme : European Association of National Metrology Institutes (EURAMET)
ID : 16NRM01
Organisme : European Association of National Metrology Institutes (EURAMET)
ID : 16NRM01
Organisme : European Association of National Metrology Institutes (EURAMET)
ID : 16NRM01
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