Fig. 1
From: Photoluminescence Enhancement of Adsorbed Species on Si Nanoparticles
XRD patterns of Si nanoparticles fabricated from Si swarf before and after one-step and two-step beads milling (a), and volume distribution of Si nanoparticle diameter fabricated by one-step milling and that of Si nanoparticles fabricated by two-step milling (b). TEM micrograph of Si nanoparticles fabricated by one-step (c) and two-step milling (d)