Laser Ablated Silver Nanoparticles with Nearly the Same Size in Different Carrier Media

Figure 4

Absorption spectra of PVP and sodium citrate-protected silver nanoparticles in water as a function of the laser irradiation time; (a) PVP-stabilized samples: a→g were laser irradiated for 0, 1.0, 2.0, 4.5, 8.5, 11.5, and 14.5 minutes; (b) sodium citrate-stabilized samples: a→g samples were laser irradiated for 0, 1.0, 2.0, 3.5, 5.5, 7.5, and 11.5 minutes.

(a)

(b)