Transparent Conductive Films of Copper Nanofiber Network Fabricated by Electrospinning

Figure 4

SEM image of Cu nanofibers formed via reduction of CuO nanofibers in hydrogen environment at different annealing temperatures of (a) 300°C, (b) 400°C, (c) 500°C, and (d) 600°C.

(a)

(b)

(c)

(d)