Back to Search
Start Over
Optically Tunable Tin Oxide-Coated Hollow Gold-Silver Nanorattles for Use in Solar-Driven Applications.
- Source :
-
ACS omega [ACS Omega] 2020 Sep 11; Vol. 5 (37), pp. 23769-23777. Date of Electronic Publication: 2020 Sep 11 (Print Publication: 2020). - Publication Year :
- 2020
-
Abstract
- Core@shell metal nanoparticles have emerged as promising photocatalysts because of their strong and tunable plasmonic properties; however, marked improvements in photocatalytic efficiency are needed if these materials are to be widely used in practical applications. Accordingly, the design of new and functional light-responsive nanostructures remains a central focus of nanomaterial research. To this end, we report the synthesis of nanorattles comprising hollow gold-silver nanoshells encapsulated within vacuous tin oxide shells of adjustable thicknesses (∼10 and ∼30 nm for the two examples prepared in this initial report). These composite nanorattles exhibited broad tunable optical extinctions ranging from ultraviolet to near-infrared spectral regions (i.e., 300-745 nm). Zeta potential measurements showed a large negative surface charge of approximately -35 mV, which afforded colloidal stability to the nanorattles in aqueous solution. We also characterized the nanorattles structurally and compositionally using scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. Futhermore, finite-difference time-domain simulation and photoluminescence properties of the composited nanoparticles were investigated. Collectively, these studies indicate that our tin oxide-coated hollow gold-silver nanorattles are promising candidates for use in solar-driven applications.<br />Competing Interests: The authors declare no competing financial interest.<br /> (Copyright © 2020 American Chemical Society.)
Details
- Language :
- English
- ISSN :
- 2470-1343
- Volume :
- 5
- Issue :
- 37
- Database :
- MEDLINE
- Journal :
- ACS omega
- Publication Type :
- Academic Journal
- Accession number :
- 32984696
- Full Text :
- https://doi.org/10.1021/acsomega.0c02818