Table 1. Elemental analysis, quantum yields, emission maxima, and FWHM of ZnxHg1-xSe QDs synthesized at different Hg/Zn precursor molar ratios.
Hg/Zn precursor molar ratio | Hg/Zn molar ratio in QD | Zn/Hg/Se molar ratio in QD | QY | λmax (nm) | FWHM (nm) | |
---|---|---|---|---|---|---|
1 | 1% | 4.2% | 0.96:0.04:0.51 | 13.1% | 672 | 166 |
2 | 2% | 4.7% | 0.95:0.05:0.50 | 16.4% | 673 | 142 |
3 | 5% | 8.5% | 0.92:0.08:0.47 | 20.9% | 684 | 126 |
4 | 10% | 9.7% | 0.91:0.09:0.38 | 25.6% | 704 | 112 |
5 | 20% | 18.0% | 0.85:0.15:0.39 | 13.8% | 736 | 141 |
6 | 25% | 20.1% | 0.83:0.17:0.35 | 4.3% | 801 | 122 |
7 | 40% | 26.9% | 0.79:0.21:0.32 | 1.0% | 907 | 151 |