Nanostructured metallic materials are known to exhibit unique plasmon resonance effects. In a paper just published by Advanced Materials, authored by the ANU Nanotechnology Research Laboratory team led by A/Prof. Antonio Tricoli in collaboration with the QUT Surface Science research group, fractal nanoparticles are shown to enhance plasmonic resonance. This observation allows the studied materials to be integrated into devices capable of room-temperature selective detection of gaseous volatile organic compounds, at low concentration levels. These contactless optically-based gas sensors have a wide range of potential uses in medicine and industry, including personal preventative healthcare.
Z. Fusco, M. Rahmani, R. Bo, R. Verre, N. Motta, M. Kall, D. Neshev, A. Tricoli (2018) Nanostructured Dielectric Fractals on Resonant Plasmonic Metasurfaces for Selective and Sensitive Optical Sensing of Volatile Compounds. Advanced Materials. 2018, 1800931.