Peña Rodríguez, OvidioDíaz Núñez, PabloGonzález Rubio, GuillermoManzaneda González, VanesaRivera, AntonioPerlado, José ManuelJunquera González, María ElenaGuerrero Martínez, Andrés2024-11-082024-11-082020Peña-Rodríguez O, Díaz-Núñez P, González-Rubio G, Manzaneda-González V, Rivera A, Perlado JM, et al. Au@Ag Core–Shell Nanorods Support Plasmonic Fano Resonances. Sci Rep 2020;10:5921. https://doi.org/10.1038/s41598-020-62852-92332-267510.1038/s41598-020-62852-9https://hdl.handle.net/20.500.14352/110285In this work, we investigated experimentally and theoretically the plasmonic Fano resonances (FRs) exhibited by core–shell nanorods composed of a gold core and a silver shell (Au@Ag NRs). The colloidal synthesis of these Au@Ag NRs produces nanostructures with rich plasmonic features, of which two different FRs are particularly interesting. The FR with spectral location at higher energies (3.7 eV) originates from the interaction between a plasmonic mode of the nanoparticle and the interband transitions of Au. In contrast, the tunable FR at lower energies (2.92–2.75 eV) is ascribed to the interaction between the dominant transversal LSPR mode of the Ag shell and the transversal plasmon mode of the Au@Ag nanostructure. The unique symmetrical morphology and FRs of these Au@Ag NRs make them promising candidates for plasmonic sensors and metamaterials components.engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Au@Ag core–shell nanorods support plasmonic fano resonancesjournal articlehttps://doi.org/10.1038/s41598-020-62852-9https://www.nature.com/articles/s41598-020-62852-9open access544535Plasmonic Fano resonancesCore–shell nanorodsPlasmonic modeLSPRPlasmonic sensorsMetamaterials componentsQuímica física (Química)Óptica (Física)2307 Química Física2209 Óptica