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Wilms, Michael
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article
Probing the interaction between individual metal nanocrystals and two-dimensional metal oxides via electron energy loss spectroscopy
Abstract
Metal nanoparticles can photosensitise two-dimensional metal oxides, facilitating their electrical connection to devices and enhancing their abilities in catalysis and sensing. In this study, we have investigated how individual silver nanoparticles inter- act with two-dimensional tin oxide and antimony-doped indium oxide using electron energy loss spectroscopy (EELS). The measurement of the spectral linewidth 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 linewidth. Our analysis reveals that a stronger interaction (damping) occurs with 2D antimony-doped indium oxide thanks to its highly homogeneous surface. The results of this study offer new insight on the interaction between metal nanoparticles and 2D materials.