Figure 5.

Schematic illustration of the formation of hierarchical Cd4SiS6/SiO2 nanowires via a secondary growth process.I formation of Au–Si alloy droplets,II simultaneous growth of Cd4SiS6 core and SiO2 shell,III formation of Cd4SiS6/SiO2 sub-microcables,IV,V growth of hierarchical Cd4SiS6/SiO2 nanowires

Liu et al. Nanoscale Research Letters 2009 5:231-236   doi:10.1007/s11671-009-9470-z