Holes drilling in gold and silver decahedral nanoparticles by the convergent beam electron diffraction electron beam |
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| Authors: | Samuel Tehuacanero-Cuapa Etienne F Brès Rodolfo Palomino-Merino Ramiro García-García |
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| Institution: | 1. Instituto de Física, UNAM, Circuito de la investigación s/n, Cd. Universitaria, Coyoacán 04510, Mexico;2. Facultad de Ciencias Físico-Matemáticas BUAP, Avenida San Claudio y 18 Sur, Colonia San Manuel, Puebla C.P. 72570, Mexico;3. Sciences et Technologies, UMET, Université de Lille 1, Batiment C6, 59650 Villeneuve d'Ascq, France;4. Facultad de Ciencias Físico-Matemáticas BUAP, Avenida San Claudio y 18 Sur, Colonia San Manuel, Puebla C.P. 72570, Mexico |
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| Abstract: | 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. |
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| Keywords: | nanoparticles electron beam irradiation convergent beam electron diffraction high-resolution electron microscopy |
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