Ge Nanoislands Grown by Radio Frequency Magnetron Sputtering: Comprehensive Investigation of Surface Morphology and Optical Properties

Figure 10

3D AFM images of samples H (a), H₃₀₀ (b), H₄₅₀ (c), and H₆₅₀ (d). The inset shows high magnification size and shape of the selected dots. Transition stage from pyramidal for preannealed to dome-like structure for postannealed sample at 650°C is shown as inset (a) and (d).

(a)

(b)

(c)

(d)