Naslov
Evolution of Nanoparticles in Gold-Implanted Glass

Autori
Dubček, Pavo ; Pivac, Branko ; Capan, Ivana ; Bernstorff, S. ; Mu, R. ; Vlahovic, Branislav

Izvornik
Vacuum (0042-207X) 82 (2008), 2; 130-133

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Au nanostructures ; Ion implantation ; Small angle X-ray scattering

Sažetak
The interest in metal nanocrystals is focused on their nonlinear optical properties, as they are expected to have a large third-order nonlinear susceptibility. In order to explore the possibility of tuning the size and shape of metal nanocrystals, we implanted gold into fused silica substrate. The implantation energy was 1.1MeV and doses were of 1, 3, and 61016 ions/cm2. All samples were subsequently annealed in air at 1000 and 1100 1C. Grazing incidence small-angle X-ray scattering was used to study the morphology and the distribution of gold nanoparticles formed in the substrate. The clustering process is evident already during the implantation itself. Upon annealing, the number of clusters, as well as their size is increased. The clusters are smaller in the vicinity of the surface, where the effective implant concentration is lower, regardless of the annealing temperature. At the highest annealing temperature the clustering diverges into two distinct size distributions.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA