biostudies-literatureUnknown13(7)Caligiuri VNanoporous metals are a class of nanostructured materials finding extensive applications in multiple fields thanks to their unique properties attributed to their high surface area and interconnected nanoscale ligaments. They can be prepared following different strategies, but the deposition of an arbitrary pure porous metal is still challenging. Recently, a dry synthesis of nanoporous films based on the plasma treatment of metal thin layers deposited by physical vapour deposition has been demonstrated, as a general route to form pure nanoporous films from a large set of metals. An interesting aspect related to this approach is the possibility to apply the same methodology to deposit the porous films as a multilayer. In this way, it is possible to explore the properties of different porous Nanophotonics (Berlin, Germany)1159-1167https://www.ebi.ac.uk/biostudies/studies/S-EPMC11501558biostudies-literatureDry synthesis of bi-layer nanoporous metal films as plasmonic metamaterial.PMC11501558Cuscuna MIvanov YPTapani TFischer PKrahne RBalestra GAlabastri AKwon HGriesi ADivitini GCaligiuri VSchirato ALin HDe Luca AMaccaferri NGaroli DfalseDry synthesis of bi-layer nanoporous metal films as plasmonic metamaterial.Nanoporous metals are a class of nanostructured materials finding extensive applications in multiple fields thanks to their unique properties attributed to their high surface area and interconnected nanoscale ligaments. They can be prepared following different strategies, but the deposition of an arbitrary pure porous metal is still challenging. Recently, a dry synthesis of nanoporous films based on the plasma treatment of metal thin layers deposited by physical vapour deposition has been demonstrated, as a general route to form pure nanoporous films from a large set of metals. An interesting aspect related to this approach is the possibility to apply the same methodology to deposit the porous films as a multilayer. In this way, it is possible to explore the properties of different porous 2024-01-01T00:00:00Z2024 Mar2025-04-27T02:21:20.38Z2025-04-06T18:30:56.987ZS-EPMC115015583963400110.1515/nanoph-2023-0942