Holes drilling in gold and silver decahedral nanoparticles by the convergent beam electron diffraction electron beam

The 200 kV focused electron beam in the convergent beam electron diffraction patterns mode in a transmission electron microscope (TEM) with field emission gun is able to drill holes in gold and silver decahedral nanoparticles. However, although they are done under the same circumstances, the holes a...

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Bibliographic Details
Published in:Radiation effects and defects in solids 2014-10, Vol.169 (10), p.838-844
Main Authors: Tehuacanero-Cuapa, Samuel, Reyes-Gasga, José, Brès, Etienne F., Palomino-Merino, Rodolfo, García-García, Ramiro
Format: Article
Language:English
Subjects:
Beams (radiation)
convergent beam electron diffraction
Diffraction
Displacement
electron beam irradiation
Electron beams
Electron diffraction
Electrons
Gold
high-resolution electron microscopy
Nanoparticles
Silver
Transmission electron microscopy
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Summary:The 200 kV focused electron beam in the convergent beam electron diffraction patterns mode in a transmission electron microscope (TEM) with field emission gun is able to drill holes in gold and silver decahedral nanoparticles. However, although they are done under the same circumstances, the holes are shapeless in the silver and faceted in gold nanoparticles. In addition to this, the holes are closed during their high-resolution TEM observation in both materials. To comment their differences, displacement energy considerations are taken into account as function of the sputtering energy in order to modify the displacement cross-section of the processes.
ISSN:1042-0150
1029-4953
DOI:10.1080/10420150.2014.958747