ZnO Nanowire Formation by Two-Step Deposition Method Using Energy-Controlled Hollow-Type Magnetron RF Plasma

Figure 4

SEM images with deposition time 𝑇_ZnO as a parameter in case of 𝑇_Zn = 60 s: 𝑇_ZnO = (a) 0 s, (b) 60 s, (c) 300 s, and (d) 600 s.

(a)

(b)

(c)

(d)