Figure 4

Annealing effect on QW PL. The 20-K PL spectra of the as-grown and annealed QW samples (a); room temperature time-resolved PL carrier decay time for the as-grown QW and those annealed at 650°C and 700°C (b).
Annealing effect on QW PL. The 20-K PL spectra of the as-grown and annealed QW samples (a); room temperature time-resolved PL carrier decay time for the as-grown QW and those annealed at 650°C and 700°C (b).