Figure 3From: Energy state of InGaAs quantum dots on SiO2-patterned vicinal substrate(a) The μ-PL spectrum of In 0.8 Ga 0.2 As SAQDs grown on unpatterned 5°-off (001) GaAs substrates and μ-PL spectra at 4.0 K of the In 0.8 Ga 0.2 As SAQDs ensemble grown on SiO 2 -patterned 5°-off (001) GaAs substrates with W (001) of (b) 0, (c) 60, (d) 110, and (e) 150 nm, respectively.Back to article page