Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Fabrication of Au-Decorated Al Nanoconcavities Platform for Augmented SERS

  • Identification data

    Identifier: imarina:9330076
    Authors:
    Dar, Gohar IjazXifre-Perez, ElisabetMarsal, Lluis F
    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.
  • Others:

    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
    Link to the original source: https://onlinelibrary.wiley.com/doi/10.1002/admi.202300560
    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
    Article's DOI: 10.1002/admi.202300560
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2023
    Funding program action: Martí i Franquès COFUND Doctoral Programme
    Publication Type: Journal Publications
  • Keywords:

    Chemistry, Multidisciplinary,Materials Science, Multidisciplinary,Mechanical Engineering,Mechanics of Materials
    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
    Química
    Mechanics of materials
    Mechanical engineering
    Materials science, multidisciplinary
    Materiais
    Interdisciplinar
    Chemistry, multidisciplinary
    Astronomia / física
  • Documents:

  • Cerca a google

    Search to google scholar