Plasmonic high-entropy carbides.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
11 Oct 2022
11 Oct 2022
Historique:
received:
29
03
2022
accepted:
21
09
2022
entrez:
11
10
2022
pubmed:
12
10
2022
medline:
12
10
2022
Statut:
epublish
Résumé
Discovering multifunctional materials with tunable plasmonic properties, capable of surviving harsh environments is critical for advanced optical and telecommunication applications. We chose high-entropy transition-metal carbides because of their exceptional thermal, chemical stability, and mechanical properties. By integrating computational thermodynamic disorder modeling and time-dependent density functional theory characterization, we discovered a crossover energy in the infrared and visible range, corresponding to a metal-to-dielectric transition, exploitable for plasmonics. It was also found that the optical response of high-entropy carbides can be largely tuned from the near-IR to visible when changing the transition metal components and their concentration. By monitoring the electronic structures, we suggest rules for optimizing optical properties and designing tailored high-entropy ceramics. Experiments performed on the archetype carbide HfTa
Identifiants
pubmed: 36220810
doi: 10.1038/s41467-022-33497-1
pii: 10.1038/s41467-022-33497-1
pmc: PMC9553889
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
5993Informations de copyright
© 2022. The Author(s).
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