CBED electron beam drilling and closing of holes in decahedral silver nanoparticles

Tehuacanero-Cuapa, Samuel; Palomino-Merino, R.; Reyes‐Gasga, J.

doi:10.1016/j.radphyschem.2013.02.023

Cited by 6 publications

(9 citation statements)

References 33 publications

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“…In the case of silver particles, Tehuacanero-Cuapa et al (1) suggested that the viability of the material observed around the hole. The driving force would be based on relaxation of mechanical distortions created by the defects induced by the electron beam during drilling the hole.…”

Section: Recovery and Recrystallizationmentioning

confidence: 99%

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

Tehuacanero-Cuapa

Reyes‐Gasga

Brès

et al. 2014

Radiation Effects and Defects in Solids

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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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Section: Recovery and Recrystallizationmentioning

confidence: 99%

“…However, recently Tehuacanero-Cuapa et al (1) have shown that holes are produced at the site of incidence when silver decahedral particles are irradiated with the electron beam in the CBED condition. Returning to observe the hole in the high-resolution image HRTEM mode, it is closed.…”

Section: Introductionmentioning

confidence: 99%

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

Tehuacanero-Cuapa

Reyes‐Gasga

Brès

et al. 2014

Radiation Effects and Defects in Solids

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“…Normal CBED patterns of volumetric materials show dynamic contrast within the bright discs, as well as diffuse Kikuchi bands and sharp HOLZ lines, but the CBED patterns of nanoparticles only show bright kinematical discs [8]. In addition to this, Tehuacanero-Cuapa et al [14], trying to obtain CBED patterns in Au decahedral nanoparticles of less than 30 nm in size, found that the electron beam perforated the Au nanoparticles, thus concluding that the CBED analysis should be performed with particles larger than 30-nm-in-size to avoid the perforation [14,15].…”

Section: Introductionmentioning

confidence: 92%

Particle size and convergent electron diffraction patterns of triangular prismatic gold nanoparticles

et al. 2021

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Convergent beam diffraction (CBED) patterns of nanoparticles are possible. CBED of triangular prismatic shaped Au nanoparticle with focus on diffraction pattern symmetry and forbidden reflections observed along [111] and [112] zone axes are reported in this work. It is well known that the CBED patterns of nanoparticles of 30 nm or less in size only show bright kinematical discs. The dynamic contrast with Kikuchi and sharp HOLZ lines within the bright discs, as observed in CBED of volumetric materials, is well observed in particles larger of 500 nm in size. In addition, it is shown that the 1/3[422] and 1/2[311] weak forbidden reflections observed in the [111] and [112] electron diffraction patterns of these particles do not modify the symmetry of the CBED patterns, but they disappear as the size of the particle increases. The symmetry of the CBED patterns are always observed in concordance with the space group Fm3m (No. 225) of the Au unit cell. The possible explanations for observing forbidden reflections are the incomplete ABC stacking due to surface termination and the stacking faults in the fcc structure.

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“…It is worth mentioning that hollows in MTPs can also be produced by different strategies using chemical etching [135] and surfactants [136], galvanic [137][138][139] and Kirkendall [140][141][142] replacement of components, and electron beam irradiation [143][144][145].…”

Section: The Intrinsic Structure Of Multiply Twinned Particlesmentioning

confidence: 99%

Review on Theoretical Models of Void Evolution in Crystalline Particles

Krasnitckii,

Gutkin

2021

Rev Adv Mater Tech

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In the review, the up-to-date theoretical research of various aspects of void evolution problem in hollow crystalline micro- and nanostructures is summarized. A classification of hollow architectures of micro- and nanostructures distinguishing the main procedures of void (pore) production as well as the influence of the voids on functional properties of the devices based on hollow structures, is suggested. The factors responsible for the void evolution process are discussed. Finally, theoretical models of the void evolution describing shrinkage and growth processes in particles of various structures are considered in terms of kinetics and thermodynamics concepts.

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CBED electron beam drilling and closing of holes in decahedral silver nanoparticles

Cited by 6 publications

References 33 publications

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

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

Particle size and convergent electron diffraction patterns of triangular prismatic gold nanoparticles

Review on Theoretical Models of Void Evolution in Crystalline Particles

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