Figure 3.

Representative TEM images and size distributions of silver nanoparticles prepared by 532 nm LASiS (60 mJ/pulse; 10 ns) in an aqueous starch solution (1% wt) with the indicated repetition rates (standard deviations in the normal distribution in parenthesis).

Notes: At 40 Hz, essentially two populations exist (black Gaussian curves) and occasionally (<3%) larger particles of ~50 nm (circle).

Abbreviations: LASiS, laser ablation synthesis in solution; TEM, transmission electron microscope.