fig11

Figure 11. (A) Schematic diagram of the synthesis of PVDF/Ag₂Se composite film; (B) partially enlarged SEM image of thin-film with 1:9.5 mass ratio of PVDF/Ag₂Se; (C) schematic diagram of the relationship between ZT and material mass ratio, the insets show the photos of the as-fabricated flexible films; (D) specific bending test of the film; (E) the as-fabricated device composed of 5 groups of PVDF/Ag₂Se composite films; (F) corresponding device performance. Reproduced with permission^[212]. Copyright 2020 ACS Publications. PVDF: Polyvinylidene fluoride.