Figure 2From: Photoluminescence Study of Low Thermal Budget III–V Nanostructures on Silicon by Droplet EpitaxyPL spectrum of the CRD sample at low temperature (T = 14 K). Upper right corner AFM image of a single CRD. The emission at 1.55 eV is attributed to carriers confined in the ring protrusion of the CRD, while the shoulder at 160 eV to states belonging to the diskBack to article page