Figure 6.

Electrodeposition of gold nanoparticles (D = 100 nm). (a) current monitoring versus deposition time for different electric fields, (b) nanoparticle density versus the integrated charge Q exchanged between the electrolyte and the silicon surface. Points (1)-(4) match the corresponding curves of panel (a). A sharp increase in density is observed for Q ≈ 1 mC/cm².