PL spectra of the as-grown (a) and annealed (b) SQWs. The excitation power was .
PL spectra of the as-grown (a) and annealed (b) SQWs measured at for various excitation power. The diameter of the excitation beam was .
Comparison of PL and PR spectra in the vicinity of the ground-state transition for the as-grown SQW at (a) and at room temperature (b).
PL spectra of the as-grown (left panel), and annealed (right panel) SQWs at selected temperatures. The solid lines represent fit by the theoretical curve related to the free-carrier recombination.
Temperature dependence of the peak energy of the band-gap-related PL emission.
Temperature dependence of the FWHM of the band-gap-related PL peak.
Arrhenius plot of the integrated PL intensity for the annealed sample. The inset shows the Arrhenius plot in the range of together with the fitting curve.
Article metrics loading...
Full text loading...