Figure 9From: Ge/Si(001) heterostructures with dense arrays of Ge quantum dots: morphology, defects, photo-emf spectra and terahertz conductivitySTM images of Ge/Si(001), h Ge = 9 Å, T gr = 360℃. (a) to (d) array top views with different magnifications; (e) a large cluster in the array, ∼ 2,5 nm high; (f) a huge cluster (> 3,5 nm high) interpreted as an array defect.Back to article page