Ion tracks in silica for engineering the embedded nanoparticles
Swift heavy ions have unique feature of creating ion tracks in insulators of dimension from a few nm to about 10 nm. This particular feature of the swift heavy ions is used to engineer the size and shape of the nanoparticles embedded in silica matrix. On the basis of several experiments, it is evide...
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| Veröffentlicht in: | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2010-10, Vol.268 (19), p.3027-3034 |
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| container_title | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms |
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| creator | Avasthi, D.K. Mishra, Y.K. Singh, F. Stoquert, J.P. |
| description | Swift heavy ions have unique feature of creating ion tracks in insulators of dimension from a few nm to about 10
nm. This particular feature of the swift heavy ions is used to engineer the size and shape of the nanoparticles embedded in silica matrix. On the basis of several experiments, it is evidenced that the embedded nanoparticles either grow in size or reduce in size, if they are smaller than or comparable to the ion track size. The shape transformation from spherical to elongated along the beam direction occurs, when the nanoparticle size is larger than the ion track diameter in silica. The reduction, growth and elongation of Au nanoparticles embedded in silica matrix under swift heavy ion irradiation have been discussed in the frame work of thermal spike model. |
| doi_str_mv | 10.1016/j.nimb.2010.05.033 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0168-583X |
| ispartof | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 2010-10, Vol.268 (19), p.3027-3034 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Elongation Engineering of size and shape Frames Heavy ions Insulators Ion irradiation Molten track Nanocomposites Nanoparticles Silicon dioxide Spikes (lattice defects) Surface plasmon resonance Swift heavy ions Transformations |
| title | Ion tracks in silica for engineering the embedded nanoparticles |
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