Author, as appears in the article.: Dar, Gohar Ijaz; Xifre-Perez, Elisabet; Marsal, Lluis F
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Dar, Gohar Ijaz / Marsal Garví, Luis Francisco / Xifré Pérez, Elisabet
Project code: Grant agreement No. 945413
Keywords: Surface enhanced raman spectroscopy Nanoporous anodic alumina Magnetron sputtering Aluminum nanoconcavities 4-mercaptopyridine surface enhanced raman spectroscopy rugate filters real-time performance magnetron sputtering lspr gold nanoparticles enhanced raman-scattering aluminum nanoconcavities
Abstract: A robust and competitive technology to synthesize arranged high-density gold nanoparticles on highly uniform Al nanoconcavities substrates is presented. The nanoparticles are formed through sputtering and thermal annealing treatment on Al templates, which are synthesized through particular removal of nanoporous anodic alumina structure with controlled anodization conditions and with phosphoric acid as electrolyte. This scalable fabrication mechanism regulates the particle size, arrangement, shape and interparticle separation across large surface areas, which empowers the optimization of their surface enhanced Raman scattering (SERS) activities. 4-mercaptopyridine is selected as a probe molecule. Analysis reveals that Au-decorated Al nanoconcavities substrates are highly competitive for the enhancement of Raman signals and could be employed as self-sustaining nanosensors. By using these templates, a concentration as low as 10−7 M of 4-mercaptopyridine is easily detected. Finally, the calculated EF factor of 1.1 × 107 confirms the suitability for effective and sensitive SERS detection of the developed substrates.
Thematic Areas: Química Mechanics of materials Mechanical engineering Materials science, multidisciplinary Materiais Interdisciplinar Chemistry, multidisciplinary Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: goharijaz.dar@urv.cat goharijaz.dar@urv.cat elisabet.xifre@urv.cat lluis.marsal@urv.cat
Author identifier: 0000-0001-6072-9889 0000-0002-5976-1408
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/publishedVersion
Funding program: Marie Sklodowska-Curie Actions – European Union’s Horizon 2020 research and innovation programme
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Advanced Materials Interfaces. 10 (35):
APA: Dar, Gohar Ijaz; Xifre-Perez, Elisabet; Marsal, Lluis F (2023). Fabrication of Au-Decorated Al Nanoconcavities Platform for Augmented SERS. Advanced Materials Interfaces, 10(35), -. DOI: 10.1002/admi.202300560
Acronym: MFP-Plus
Entity: Universitat Rovira i Virgili
Journal publication year: 2023
Funding program action: Martí i Franquès COFUND Doctoral Programme
Publication Type: Journal Publications
Repositori URV