Satpati, B. ; Ghatak, J. ; Joseph, B. ; Som, T. ; Kabiraj, D. ; Dev, B. N. ; Satyam, P. V. (2006) Energy dependent sputtering of nanoclusters from a nanodisperse target Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 244 (1). pp. 278-282. ISSN 0168-583X
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S01685...
Related URL: http://dx.doi.org/10.1016/j.nimb.2005.11.043
Abstract
Au nanoparticles, prepared by thermal evaporation under high vacuum condition on Si substrate, are irradiated with Au ions at different ion energies. During ion irradiation, embedding of nanoparticles as well as ejection of nanoclusters is observed. Ejected particles due to sputtering are collected on carbon-coated grids. Both the grids and the ion-irradiated samples are analyzed with transmission electron microscopy (TEM) and Rutherford backscattering spectrometry (RBS). Size distribution of the sputtered Au clusters on the TEM grids for different ion energy regimes are presented. In the case of low energy (32 keV) ions, where the nuclear energy loss is dominant, sputtering is less as compared to medium energy (1.5 MeV). In the high-energy regime (100 MeV), where the electronic energy loss is dominant, sputtering is found to be maximum.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Sputtering; Self-ion Irradiation; Gold Nanoislands |
| ID Code: | 10065 |
| Deposited On: | 02 Nov 2010 09:55 |
| Last Modified: | 30 May 2011 05:43 |
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