Directed Deposition of Nickel Nanoparticles Using Self-Assembled Organic Template

Figure 4

High-resolution (20 nm × 20 nm) STM images of octadecanoic acid layers taken on the same place of solid/liquid interface by different/ (a) V_bias = −800 mV, (b) = −500 mV, (c) = 500 mV, and (d) = 800 mV/bias-potentials, tunneling current by all measurement: = 1 nA.