fig4

Figure 4. (A) Schematic illustration of the preparation process for synthesizing free-standing 1D PEDOT nanofiber films by a simple self-assembled micellar soft-template approach combined with a vacuum-assisted filtration method; (B) Photographs of free-standing and flexible PEDOT nanofiber films; (C) SEM and (D) TEM images of PEDOT nanofibers. Reproduced with permission from Ref^[37]. Copyright^© 2021. Elsevier; (E) A schematic plot of the prototype power generator; (F) TE voltage generated by the prepared generator versus ΔT. Reproduced with permission from Ref^[38]. Copyright^© 2019. Elsevier. PEDOT: Poly(3,4-ethylenedioxythiophene); SEM: scanning electron microscope; TEM: transmission electron microscopes.