Figure 2.

AFM images of InAs QDs grown at 420 °C on Ge substrate with InAs coverage of a 1.4 MLs, b 1.80 MLs, c 1.85 MLs, d 1.95 MLs, and e 2.35 MLs. The scan size for all the images is 2 μm × 2 μm

Dhawan et al. Nanoscale Research Letters 2009 5:31-37   doi:10.1007/s11671-009-9439-y