Grazing-incidence small-angle scattering measurement of Ge islands capped with a Si layer

Abstract
Grazing-incidence small-angle scattering (GI-SAXS) technique was applied to self-organized Ge islands capped with Si. The average size and height as well as the average distance between Ge islands were obtained. The present results demonstrate that GI-SAXS is a useful tool to examine the structure of self-organized semiconducting nanodots even if they are covered with a cap layer, and a simple kinematical approach can be safely used under some conditions.