Table 2. Effect of the Different Reaction Variables on the Properties of the AIS-PEI/2MPA QDs.
| sample | AIS-PEI/2MPA-1 | AIS-PEI/2MPA-2 | AIS-PEI/2MPA-3 | AIS-PEI/2MPA-4 | AIS-PEI/2MPA-5 | AIS-PEI/2MPA-6 | AIS-PEI/2MPA-7 |
|---|---|---|---|---|---|---|---|
| Ag/S ratio | 1/10 | 1/10 | 1/2.5 | 1/10 | 1/5.5 | 1/1.25 | 1/10 |
| Ag/In ratio | 1/10 | 1/4 | 1/4 | 1/0.25 | 1/10 | 1/4 | 1/2 |
| cations/S ratio | 1.1 | 0.5 | 2 | 0.5 | 2 | 4 | 0.3 |
| λemia (nm) | 617 | 640 | 618 | 774 | 618 | 655 | 638 |
| bandgap (eV) | 2.74 | 2.4 | 2.57 | 2.02 | 2.15 | 2.12 | 2.24 |
| Eub (meV) | 138 | 149 | 144 | 167 | 168 | 151 | 150 |
| FWHMc (nm) | 147 | 177 | 147 | 105 | 139 | 240 | 189 |
| Dh-numberd (nm) | 7.7 ± 0.9 | 12.7 ± 0.4 | 10.5 ± 0.6 | 11.9 ± 0.4 | 8.2 ± 1.3 | 57.9 ± 3.7 | |
| Dh-intensitye (nm) | 27.9 ± 4.1 | 26.3 ± 2.2 | 37.9 ± 10.3 | 60.4 ± 6.8 | 17.6 ± 8.7 | 99.1 ± 10.3 | |
| zeta potential (mV) | 10.7 ± 2.1 | 8.1 ± 1 | 9.8 ± 0.3 | 16.4 ± 0.9 | 20.9 ± 3.2 | –4.9 ± 1.7 | |
| QY (%) | 20.3 ± 1.4 | 15.6 ± 0.9 | 7.9 ± 0.4 |
Emission maxima.
Urbach energy.
Full-width at half-maximum of the emission peak.
Hydrodynamic diameter measured by DLS and reported as the number average.
Hydrodynamic diameter measured by DLS and reported as the intensity average.