Figure 1From: InAs/GaAs quantum dots with wide-range tunable densities by simply varying V/III ratio using metal-organic chemical vapor depositionAFM images of InAs quantum dots with different V/III ratios. (a-o) AFM images of InAs quantum dots in a scan area of 5 μm × 5 μm with varied V/III ratios from 0 to 1,000. The inset figures in (a) and (d) are the corresponding AFM images of InAs QDs in a larger scan area of 20 μm × 20 μm.Back to article page