Figure 3
From: Real-time detection of chlorine gas using Ni/Si shell/core nanowires
Selective adsorption of Ni-Si NWs into diverse patterns. (a) Optical image (left) and magnified SEM image (right) showing the selective adsorption of Ni-Si NWs into line patterns on molecularly patterned SiO2 substrates. The NWs were assembled on the polar SiO2 regions avoiding the nonpolar OTS regions. (b) Optical image (left) and magnified SEM image (right) showing the selective adsorption of Ni-Si NWs into star patterns. (c) Optical image showing the selective adsorption of Ni-Si NWs into circle patterns.