Supersonically Sprayed Flexible ZnO/PVDF Composite Films with Enhanced Piezoelectricity for Energy Harvesting and Storage

Figure 3

(a) SEM image of the ZP5 composite film, including the SEM image of a single ZnO microrod in the inset. (b) TEM image of the ZP5 composite film, exhibiting the enlarged portion of the ZP5 composite film. (c) High-angle annular dark-field image. (d–g) Elemental mapping of the ZP5 composite film, exhibiting Zn, O, C, and F. (h) HRTEM image with lattice fringes, exhibiting the (101) and (100) planes of ZnO microrods. (i) SAED pattern of ZnO microrods with lattice planes.

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