Size saturation in low energy ion beam synthesized nanoparticles in silica glass: 50 keV Ag{sup -} ions implantation, a case study

Journal Article · Wed Sep 15 04:00:00 EDT 2010 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3480809· OSTI ID:21476449

Kuiri, P K ^[1]

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1. Department of Physics, Achhruram Memorial College, P.O. Jhalda, Purulia 723202 (India)

Fluence-dependent formation of Ag nanoparticles (NPs) in silica glass by 50 keV Ag{sup -} ions implantation has been studied. Samples implanted with fluences of 2x10{sup 16} ions cm{sup -2} and above are found to show an absorption band at around 410 nm, corresponding to the surface plasmon resonance (SPR) of the Ag NPs in silica glass. An increase in SPR peak intensity with increase in fluence has been observed up to a fluence of 7x10{sup 16} ions cm{sup -2} (F7), after which the absorption intensity shows a saturation. Simulations of the optical absorption spectra also indicated an increase in the absorption intensity and hence the size of the NPs with increase in fluence up to F7, beyond which NP size is seen to saturate. The saturation of fluence and the SPR intensity (or NP size) have been explained as coming due to a break up of larger Ag NPs formed near the surface by displacement spikes induced by subsequently incident Ag ions against their regrowth from the movement of Ag atoms toward the surface and their sputtering loss. Further, we have compared our observations with the earlier data on saturation of fluence and size of NPs in cases of Au and Zn, and concluded that the saturation of both fluence and NP size are general phenomena for low energy high fluence metal ion implantation.

• OSTI ID: 21476449
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 5 Vol. 108; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION SPECTRA
BEAMS
CHARGED PARTICLES
ELEMENTS
ENERGY RANGE
GLASS
GOLD
ION BEAMS
ION IMPLANTATION
IONS
KEV RANGE
METALS
MINERALS
NANOSTRUCTURES
OXIDE MINERALS
PARTICLES
PHYSICAL RADIATION EFFECTS
PLASMONS
QUASI PARTICLES
RADIATION EFFECTS
SILICA
SILVER
SILVER IONS
SIMULATION
SPECTRA
SPUTTERING
SURFACES
TRANSITION ELEMENTS
ZINC