Figure 1.

a AFM image of the uncapped (In,Ga)As/GaAs QD structure. b Fourier-transformed AFM image of an area with sizes 4 × 4 μm2. The arrows pointed out the maxima along the directions of the QD alignment, [0-11] and [011]; c Histogram of QD distribution by the aspect ratio

Mazur et al. Nanoscale Research Letters 2010 5:991-1001   doi:10.1007/s11671-010-9590-5