Table 1 Optical parameters of the samples formed by alloyed QDs together with their size and morphology.
From: Porous flower-like superstructures based on self-assembled colloidal quantum dots for sensing
Sample | Superstructure morphology | Size, μm | Estimated average pore size, μm | PL peak position, nm | FWHM, nm | Average PL lifetime, ns |
|---|---|---|---|---|---|---|
Alloyed QD solution | — | — | — | 535 | 30 | 30.9 |
QD1 | Spiky flowers | 40–100 | — | 529 | 37 | 21.7 |
spikes or needles | 20–40 | |||||
QD2 | Spiky flowers | 150–550 | 26.5 | 534 | 49 | 35.7 |
spikes or needles | 25–140 | |||||
QD3 | Spiky flowers | 21 | 0.3–0.7 | 534 | 30 | 17.8 |
Globular flowers | 3–12 | |||||
Smooth spheres | 0.5–2.8 | |||||
QD4 | Porous structure | >100 | — | 531 | 33 | 29.6 |
QD5 | Porous structure | >100 | 1.9 | 532 | 32 | 55.7 |
