Fig. 3: Single-exciton gain mechanisms. | NPG Asia Materials

Fig. 3: Single-exciton gain mechanisms.

From: A bright future for colloidal quantum dot lasers

Fig. 3

a Defect assisted low threshold gain using HgTe QDs, taken from Geiregat et al.18; b Doped Cd-based QDs enable low-threshold amplified spontaneous emission (ASE), taken from Wu et al.19; c Type II QDs showing thresholds close to 2/3 and prolonged inversion lifetimes, taken from Klimov et al.20

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