Tuning the Plasmonic Response up: Hollow Cuboid Metal Nanostructures

Genç, A. ; Patarroyo, J. ; Sancho-Parramon, J. ; Arenal, R. (Universidad de Zaragoza) ; Duchamp, M. ; Gonzalez, E.E. ; Henrard, L. ; Bastús, N.G. ; Dunin-Borkowski, R. ; Puntes, V.F. ; Arbiol, J.

Resumen: We report the fine-tuning of the localized surface plasmon resonances (LSPRs) from ultraviolet to near-infrared by nanoengineering the metal nanoparticle morphologies from solid Ag nanocubes to hollow AuAg nanoboxes and AuAg nanoframes. Spatially resolved mapping of plasmon resonances by electron energy loss spectroscopy (EELS) revealed a homogeneous distribution of highly intense plasmon resonances around the hollow nanostructures and the interaction, that is, hybridization, of inner and outer plasmon fields for the nanoframe. Experimental findings are accurately correlated with the boundary element method (BEM) simulations demonstrating that the homogeneous distribution of the plasmon resonances is the key factor for their improved plasmonic properties. As a proof of concept for these enhanced plasmonic properties, we show the effective label free sensing of bovine serum albumin (BSA) of single-walled AuAg nanoboxes in comparison with solid Au nanoparticles, demonstrating their excellent performance for future biomedical applications.

Idioma: Inglés

DOI: 10.1021/acsphotonics.5b00667

Año: 2016

Publicado en: ACS photonics 3, 5 (2016), 770-779
ISSN: 2330-4022

Factor impacto JCR: 6.756 (2016)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 28 / 275 = 0.102 (2016) - Q1 - T1
Categ. JCR: OPTICS rank: 7 / 92 = 0.076 (2016) - Q1 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 15 / 87 = 0.172 (2016) - Q1 - T1
Categ. JCR: PHYSICS, CONDENSED MATTER rank: 14 / 67 = 0.209 (2016) - Q1 - T1
Categ. JCR: PHYSICS, APPLIED rank: 16 / 147 = 0.109 (2016) - Q1 - T1

Factor impacto SCIMAGO: 3.471 - Atomic and Molecular Physics, and Optics (Q1) - Electronic, Optical and Magnetic Materials (Q1) - Electrical and Electronic Engineering (Q1) - Biotechnology (Q1)

Financiación: info:eu-repo/grantAgreement/EC/FP7/312483/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM 2

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)