posted on 2024-02-02, 13:10authored byLesly
V. Melendez, Chung Kim Nguyen, Michael Wilms, Nitu Syed, Torben Daeneke, Noel W. Duffy, Andreas Fery, Enrico Della Gaspera, Daniel E. Gómez
Metal nanoparticles can photosensitize
two-dimensional metal oxides,
facilitating their electrical connection to devices and enhancing
their abilities in catalysis and sensing. In this study, we investigated
how individual silver nanoparticles interact with two-dimensional
tin oxide and antimony-doped indium oxide using electron energy loss
spectroscopy (EELS). The measurement of the spectral line width of
the longitudinal plasmon resonance of the nanoparticles in absence
and presence of 2D materials allowed us to quantify the contribution
of chemical interface damping to the line width. Our analysis reveals
that a stronger interaction (damping) occurs with 2D antimony-doped
indium oxide due to its highly homogeneous surface. The results of
this study offer new insight into the interaction between metal nanoparticles
and 2D materials.