InP Ring-Shaped Quantum Dot Molecules by Droplet Epitaxy - Quantum Dot Molecules - page 40

Fig. 2.9 When deposition temperature is varied from 120 to 290 ◦ C (crystallization temperature
200 ◦ C, In deposition rate 0.8 ML/s, In thickness 3.6 ML), InP ring-shaped QDMs become bigger
in ring diameter, dot size, and number of dot on the ring with less QDM density due to merging of
small droplets to larger droplet size leading to less droplet density at high deposition temperature