Structural, Optical, Electrical, and Photoresponse Properties of Postannealed Sn-Doped ZnO Nanorods

Figure 2

SEM images of Sn-doped ZnO nanorods at different postannealing temperatures (a) 150°C, (b) 300°C, and (c) 500°C.

(a)

(b)

(c)