[Retracted] Structural and Electrical Properties of Graphene Oxide-Doped PVA/PVP Blend Nanocomposite Polymer Films

Figure 4

SEM images of polymer electrolyte films for different PVP/PVA  :  GO wt.% ratios of (a) (0.20  :  0.1), (b) (0.25  :  0.2), and (c) (0.30  :  0.3).

(a)

(b)

(c)