Tuning the Surface Plasmon Resonance of Gold Dumbbell Nanorods.
Journal
ACS omega
ISSN: 2470-1343
Titre abrégé: ACS Omega
Pays: United States
ID NLM: 101691658
Informations de publication
Date de publication:
16 Mar 2021
16 Mar 2021
Historique:
received:
12
12
2020
accepted:
17
02
2021
entrez:
22
3
2021
pubmed:
23
3
2021
medline:
23
3
2021
Statut:
epublish
Résumé
Gold has always fascinated humans, occupying an important functional and symbolic role in civilization. In earlier times, gold was predominantly used in jewelry; today, this noble metal's surface properties are taken advantage of in catalysis and plasmonics. In this article, the plasmon resonance of gold dumbbell nanorods is investigated. This unusual morphology was obtained by a seed-mediated growth method. The concentration of chemical precursors such as cetyltrimethylammonium bromide and silver nitrate plays a significant role in controlling the shape of the nanorods. Indeed, the aspect ratio of dumbbell nanostructures was varied from 2.6 to 4. UV-visible absorption spectra revealed a shift of the longitudinal surface plasmon resonance peak from 669 to 789 nm. Having the plasmon resonance in the near infrared region helps to use those nanostructures as photothermal agents.
Identifiants
pubmed: 33748601
doi: 10.1021/acsomega.0c06062
pmc: PMC7970564
doi:
Types de publication
Journal Article
Langues
eng
Pagination
6871-6880Informations de copyright
© 2021 The Authors. Published by American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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