Figure 7.

a AFM topographical image from Cu nanoparticles deposited on sapphire and filtered in 1 nm, b Particle size histogram obtained from the height of the NPs, cZ-Height profile along the line indicated in (d), d Larger magnification from (a). Experimental conditions: Ar (10 sccm), He (25 sccm), Agg. Length (30 mm), Power (62 W)

Gracia-Pinilla et al. Nanoscale Research Letters 2009 5:180-188   doi:10.1007/s11671-009-9462-z