Copper-based disordered plasmonic system with dense nanoisland morphology
Abstract
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-layer(s) 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 nanoislands that represent an affordable and versatile example of disordered plasmonic substrate. We perform detailed characterizations of the system using several techniques such as spectroscopic ellipsometry, cathodoluminescence, electron energy loss spectroscopy, ultrafast pump-probe spectroscopy and second-harmonic generation with the aim to investigate the optical properties of these systems in an unprecedented systematic way. Our study represents the starting point for future applications of this new disordered plasmonic system ranging from sensing to photochemistry and photocatalysis.
Cite
@article{arxiv.2411.01206,
title = {Copper-based disordered plasmonic system with dense nanoisland morphology},
author = {Tlek Tapani and Roman Krahne and Vincenzo Caligiuri and Andrea Griesi and Yurii P. Ivanov and Massimo Cuscuna and Gianluca Balestra and Haifeng Lin and Anastasiia Sapunova and Paolo Franceschini and Andrea Tognazzi and Costantino De Angelis and Giorgio Divitini and Hyunah Kwon and Peer Fischer and Nicolo Maccaferri and Denis Garoli},
journal= {arXiv preprint arXiv:2411.01206},
year = {2025}
}