Artículos de revistas
Structure determination of superatom metallic clusters using rapid scanning electron diffraction
Fecha
2016-01-07Registro en:
Bruma, Alina; Santiago, Ulises; Alducin, Diego; Plascencia Villa, German; Whetten, Robert L.; et al.; Structure determination of superatom metallic clusters using rapid scanning electron diffraction; American Chemical Society; Journal of Physical Chemistry C; 120; 3; 7-1-2016; 1902-1908
1932-7447
1932-7455
CONICET Digital
CONICET
Autor
Bruma, Alina
Santiago, Ulises
Alducin, Diego
Plascencia Villa, German
Whetten, Robert L.
Mariscal, Marcelo
José Yacamán, Miguel
Resumen
Experimental analysis of electron diffraction patterns for ligand-stabilized gold clusters in transmission electron microscopy is a cumbersome procedure, due to electron beam–induced irradiation damage. We propose herein a method for instantaneous data collection using scanning nanobeam electron diffraction and the subsequent determination of the crystal metallic clusters. The procedure has been tested on a known structure, namely Au102(p-MBA)44 nanoclusters and has been compared with their structure theoretically determined by ones previously obtained from X-ray diffraction analysis. The method can be unambiguously applied for the case of any nanoscale system susceptible to electron beam damage and it is capable to register the rotation effect on the metallic clusters caused due to the electron beam interaction during the raster scanning on the sample.