Fig. 5
Distribution of nanoparticles’ hydrodynamic radii as measured in water suspension (dots) and taken directly from TEM images along shorter and longer sides of the nanocrystals (see text). Nanoparticles were transferred to water suspension by high power ultrasonic horn. Concentration of dry material was 1 mg per 1 ml of water. After sedimentation has finished, ten measurements of mobility were performed to obtain credible mobility vs. nanoparticle diameter plot. TEM sizes were taken directly from images: along c axis (longer sides of ZnO crystals) and along m and a axes (shorter sides of crystals)