Enhanced and Spectrally Selective Near Infrared Photothermal Conversion in Plasmonic Nanohelices

Abstract: The photothermal conversion in plasmonic nanohelices is studied, unveiling how helical nanostructures made from metals with a notable interband activity ‐such as cobalt (Co) and nickel (Ni)‐ exhibit a remarkable temperature rise ΔT up to ≈1000 K under illumination. Such outstanding ΔT values exclusively occur at wavelengths close to their localized plasmon resonances (ΔT is significantly lower off resonance), and therefore the photothermal conversion of these nanoparticles is spectrally selective. The exceptional and spectrally selective temperature rise is demonstrated at near infrared (NIR) wavelengths, which prompts the use of Co and Ni helical nanoparticles in a wide range of photothermal applications including solar energy conversion, seawater desalination, catalysis, or nanomedicine.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Enhanced and Spectrally Selective Near Infrared Photothermal Conversion in Plasmonic Nanohelices ; day:12 ; month:04 ; year:2024 ; extent:5 ; Advanced functional materials ; (12.04.2024) (gesamt 5)

Contributors, Places and Time

• Creator: Delgado‐Notario, Juan A. ; López‐Díaz, David ; McCloskey, David ; Caridad, José M.

Further information

• DOI: 10.1002/adfm.202401599
• URN: urn:nbn:de:101:1-2024041314330388638821
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:53 AM CEST