Cover Image

Disordered plasmonic system with dense copper nano-island morphology

Dry synthesis is a highly versatile method for the fabrication of nanoporous metal films, since it enables easy and reproducible deposition of single or multi-layers of nanostructured materials that can find intriguing applications in plasmonics, photochemistry and photocatalysis, to name a few. Her...

Full description

Saved in:
Bibliographic Details
Main Authors: Tapani, Tlek (Author) , Caligiuri, Vincenzo (Author) , Zou, Yanqiu (Author) , Griesi, Andrea (Author) , Ivanov, Yurii P. (Author) , Cuscunà, Massimo (Author) , Balestra, Gianluca (Author) , Lin, Haifeng (Author) , Sapunova, Anastasiia (Author) , Franceschini, Paolo (Author) , Tognazzi, Andrea (Author) , Angelis, Costantino de (Author) , Divitini, Giorgio (Author) , Carzino, Riccardo (Author) , Kwon, Hyunah (Author) , Fischer, Peer (Author) , Krahne, Roman (Author) , Maccaferri, Nicolò (Author) , Garoli, Denis (Author)
Format: Article (Journal)
Language:English
Published: 25. April 2025
In: Nanophotonics
Year: 2025, Volume: 14, Issue: 12, Pages: 2151-2160
ISSN:2192-8614
DOI:10.1515/nanoph-2024-0743
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1515/nanoph-2024-0743
Verlag, kostenfrei, Volltext: https://www.degruyterbrill.com/document/doi/10.1515/nanoph-2024-0743/html
Get full text
Author Notes:Tlek Tapani, Vincenzo Caligiuri, Yanqiu Zou, Andrea Griesi, Yurii P. Ivanov, Massimo Cuscunà, Gianluca Balestra, Haifeng Lin, Anastasiia Sapunova, Paolo Franceschini, Andrea Tognazzi, Costantino De Angelis, Giorgio Divitini, Riccardo Carzino, Hyunah Kwon, Peer Fischer, Roman Krahne, Nicolò Maccaferri and Denis Garoli
Description
Summary:Dry synthesis is a highly versatile method for the fabrication of nanoporous metal films, since it enables easy and reproducible deposition of single or multi-layers of nanostructured materials that can find intriguing applications in plasmonics, photochemistry and photocatalysis, to name a few. Here, we extend the use of this methodology to the preparation of copper nano-islands that represent an affordable and versatile example of disordered plasmonic substrates. Although the island morphology is disordered, the high density of these nanostructures with large surface area results in a good homogeneity on a macroscale, which is beneficial for plasmonic applications such as bio-sensing and photo-catalysis. With cathodoluminescence and electron-energy-loss spectroscopies we confirm the nano-islands as sources of the local field enhancement and identify the plasmonic resonance bands in the visible and near-infrared spectral range. The decay dynamics of the plasmonic signal are slower in the nano-island as compared to bulk copper films, which can be rationalized by a reduced energy dissipation in the nano-island films. Our study demonstrates a robust and lithography-free fabrication pathway to obtain nanostructured plasmonic copper substrates that represent a highly versatile low-cost alternative for future applications ranging from sensing to photochemistry and photocatalysis.
Item Description:Gesehen am 09.12.2025
Physical Description:Online Resource
ISSN:2192-8614
DOI:10.1515/nanoph-2024-0743

Similar Items