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Continuous-wave PL spectra at different excitation powers. The maximum PL intensity is normalized for comparison. The inset shows the PLE spectrum.
(a) PL spectra at different temperatures; (b) PL peak intensity vs temperature.
Time decay of PL detected at the peak energies at different temperatures.
The PL decay times of InGaAs/GaAs QDs vs temperature (closed squares). Open symbols represent data from the literature. The solid lines show the fitting results. The fitting parameters are given in the figure.
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