Figure 3From: InAs/GaAs quantum dots with wide-range tunable densities by simply varying V/III ratio using metal-organic chemical vapor depositionResults of PL measurements of selected samples. (a) Room-temperature PL spectrum of GaAs/InAs QD (V/III ratio = 50)/60 nm GaAs cap measured at 300 K. (b) The μPL spectrum of GaAs/InAs QD (V/III ratio = 35)/60 nm GaAs cap measured at 77 K.Back to article page