Figure 2From: Nanocomposite ZnO–SnO2 Nanofibers Synthesized by Electrospinning MethodFE-SEM images of as-spun nanofibers: a x = 0.08 and b 0.45. FE-SEM images of (1 − x)ZnO-(x)SnO2 nanofibers calcined at 600°C in O2 ambient for 6 h: c x = 0.08, d 0.20 e 0.29, f 0.36, g 0.45, and h 0.6. The nanofibers are formed up to the composition of x = 0.45, and above this critical level, they become Sn-rich clusters and no longer nanofibersBack to article page