Abstract: |
Gold nanodisks are highly effective plasmonic sensors. This is especially true when gas molecules adsorb onto them or interact with them. This interaction changes the local dielectric properties and induces a wavelength shift in the gold localized surface plasmon resonance (LSPR). We have used nanoplasmonic sensing (NPS) to investigate the interactions of different gas molecules with both bare and coated gold disks (Demirdjian, 2018), as well as with nanoparticles (Demirdjian, 2015; Demirdjian, 2021) or small atomic clusters supported on them (Demirdjian, 2024b). NPS is highly sensitive, quantitative and non-destructive, making it suitable for studying a wide range of gas pressures and temperatures. FDTD calculations have also been performed to interpret LSPR results (Demirdjian, 2024a).
REFERENCES
Demirdjian, B., Bedu, F., Ranguis, A., Ozerov, I., Karapetyan, A., Henry, C.R. (2015). JPCL 6, 4148-4152.
Demirdjian, B., Bedu, F., Ranguis, A., Ozerov, I., Henry, C.R. (2018). Langmuir 34, 5381-5385.
Demirdjian, B., Ozerov, I., Bedu, F., Ranguis, A., Henry, C.R. (2021). ACS Omega 6, 13398-13405.
Demirdjian, B., Ozerov, I., Bedu, F., Ranguis, A., Henry, C.R. (2024a). CPL 837, 141063.
Demirdjian, B., Vaidulych, M., Ozerov, I., Bedu, F., Vajda, S., Henry, C.R. (2024b). Nanoscale, Advance Article. |