Naslov
GISAXS studies of structural modifications in ion-beam amorphized Ge

Autori
Desnica-Franković, Ida Dunja ; Dubček, Pavo ; Desnica, Uroš ; Bernstorff, Sigird ; Ridgway, Marc ; Glover, C. J.

Izvornik
Nuclear Instruments and Methods in Physics Research. B (0168-583X) 249 (2006); 114-117

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

Ključne riječi
amorphous Ge; ion implantation; GISAXS; nano-voids; porosity

Sažetak
Grazing incidence small angle scattering of X-rays (GISAXS) was used to analyze structural modifications in implantation-damaged Ge. Samples were implanted by different doses of 74Ge, from 3 × 1012 cm− 2 to 3 × 1016 cm− 2 ; at room- or liquid nitrogen-temperature, respectively. We have found that the micro-structure in amorphous Ge, continuously and consistently evolves as a function of ion dose but differs according to the implantation temperature. In RT-samples small vacancy nanoclusters agglomerate in the end-of-range region of implanted layer even before complete amorphization. With higher doses nanoclusters increase and coalesce into nano-voids. For the highest dose, the onset of porosity is confirmed. On the other hand, in LN-implanted samples, the clustering-related signal is much weaker and evolves more slowly

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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