Figure 1.

a Conceptual diagram of the chemical vapor deposition process in which Zn is placed on a Ti grid. The ZnONW fabrication process: b, c Zn powder on the Ti-grid; d the formation of a Zn film on a Ti-grid; and f fully grown ZnONWs

Gandhi et al. Nanoscale Research Letters 2009 5:581-586   doi:10.1007/s11671-009-9509-1