Figure 9
From: Laser-induced growth of nanocrystals embedded in porous materials
Absorption spectra of PbS nanoparticles created by fs laser at different times after irradiation. Left, sample irradiated with 40 mW, mean NP size 8 nm. Right, sample irradiated with 10 mW, mean NP size 4 nm. (Curve a) Just after irradiation, (curve b) 50 days after irradiation, and (curve c) 100 days after the initial irradiation. Adapted from [40].