Full text loading...
AFM topographies for 1.7 ML QDs interface immediately quenched (a) and with a postgrowth annealing at (b), (c), and (d).
(a) QD aspect ratio histograms after 1.7 ML of : interface immediately quenched (higher panel) after postgrowth annealing at (medium panel) and (lower panel). On the right of image, the schematic structure of QDs is shown. In the insets RHEED chevrons and facets determined by RHEED and AFM analyses are reported. (b) Scheme of a chevron structure. Chevron angle is the measured by intensity profiles. (c) Distance between chevrons as a function of (arbitrary origin). The measured angles for the sample immediately quenched and annealed at are reported.
Left panel: QD aspect ratio vs volume for the interface immediately quenched (circles) with postgrowth annealing at (diamonds) and (crosses). Right panel: QD aspect ratio vs Volume at as a function of annealing time [ (squares), (triangles), and (circles)].
Article metrics loading...