RT Journal Article
T1 Three-dimensional elemental mapping at the atomic scale in bimetallic nanocrystals
A1 Goris, Bart
A1 De Backer, Annick
A1 Aert, Sandra Van
A1 Gómez Graña, Sergio
A1 Liz Marzán, Luis Manuel
A1 Van Tendeloo, Gustaaf
A1 Bals, Sara
K1 2307 Química Física
AB A thorough understanding of the three-dimensional (3D) atomic structure and composition of core-shell nanostructures is indispensable to obtain a deeper insight on their physical behavior. Such 3D information can be reconstructed from two-dimensional (2D) projection images using electron tomography. Recently, different electron tomography techniques have enabled the 3D characterization of a variety of nanostructures down to the atomic level. However, these methods have all focused on the investigation of nanomaterials containing only one type of chemical element. Here, we combine statistical parameter estimation theory with compressive sensing based tomography to determine the positions and atom type of each atom in heteronanostructures. The approach is applied here to investigate the interface in core-shell Au@Ag nanorods but it is of great interest in the investigation of a broad range of nanostructures.
PB Nano Letters
SN 15306984
YR 2013
FD 2013-08-20
LK http://hdl.handle.net/11093/6059
UL http://hdl.handle.net/11093/6059
LA eng
NO Nano Letters, 13(9): 4236-4241 (2013)
DS Investigo
RD 19-sep-2024