Table 1 Preparation conditions and properties of CdTe 0.5 Se 0.5 cores and CdTe 0.5 Se 0.5 /Cd 0.5 Zn 0.5 S core/shell QDs
From: Near-infrared emitting CdTe0.5Se0.5/Cd0.5Zn0.5S quantum dots: synthesis and bright luminescence
Sample | Reaction time (min) | Reaction temperature (°C) | Composition | PL peak wavelength (nm) | PL efficiency (%) | FWHM (nm) |
|---|---|---|---|---|---|---|
1 | 2.5 | 280 | CdTe0.5Se0.5 | 573.4 | 0.9 | 23.6 |
2a | 6 | 220 | CdTe0.5Se0.5/Cd0.5Zn0.5S | 700.4 | 48.3 | 65.2 |
3 | 2.5 | 280 | CdTe0.5Se0.5 | 576.4 | 1.1 | 38.4 |
4a | 11 | 200 | CdTe0.5Se0.5/Cd0.5Zn0.5S | 656.2 | 52.2 | 64.4 |