Monolayer black phosphorus by sequential wet-chemical surface oxidation.
Journal
RSC advances
ISSN: 2046-2069
Titre abrégé: RSC Adv
Pays: England
ID NLM: 101581657
Informations de publication
Date de publication:
25 Jan 2019
25 Jan 2019
Historique:
received:
01
11
2018
accepted:
17
01
2019
entrez:
12
3
2019
pubmed:
12
3
2019
medline:
12
3
2019
Statut:
epublish
Résumé
We report a straightforward chemical methodology for controlling the thickness of black phosphorus flakes down to the monolayer limit by layer-by-layer oxidation and thinning, using water as solubilizing agent. Moreover, the oxidation process can be stopped at will by two different passivation procedures, namely the non-covalent functionalization with perylene diimide chromophores, which prevents the photooxidation, or by using a protective ionic liquid layer. The obtained flakes preserve their electronic properties as demonstrated by fabricating a BP field-effect transistor (FET). This work paves the way for the preparation of BP devices with controlled thickness.
Identifiants
pubmed: 30854196
doi: 10.1039/c8ra09069f
pii: c8ra09069f
pmc: PMC6369675
doi:
Types de publication
Journal Article
Langues
eng
Pagination
3570-3576Références
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