Figure 6.

PENGs with thin film structure. A) A schematic illustration of the fabrication process of the flexible and large‐area PZT thin‐film PENG using the ILLO process. Reproduced with permission.14 B) Thin‐film PENG based on laterally‐aligned PZT nanofibers. Reproduced with permission.41 Copyright 2010, American Chemical Society. C) Flexible BaTiO₃ thin film PENG. Reproduced with permission.[[qv: 44b]] Copyright 2010, American Chemical Society. D) Thin film (P(VDF‐TrFE)) based PENG on flexible substrates. Reproduced with permission.51 Copyright 2011, Elsevier. E) Porous PENG based on PVDF film. Reproduced with permission.[[qv: 49b]]