fig2

Figure 2. (A) Fabrication process of inkjet printing to produce TEGs^[83]; (B) Photograph of an inkjet-printed thermoelectric device consisting of 20 silver and graphene legs^[84]; (C) SEM images of Ag₂Te films sintered at 673 K; Temperature-dependent (D) σ and (E) S of printed Ag_xTe films with different Ag ratios sintered at 673 K^[83]; (F) Measured power and voltage as a function of the current at different T; (G) Photograph of a wearable flexible TEG fabricated by inkjet printing; (H) Measured temperature and voltage when wearing on the wrist^[83]. SEM: Scanning electron microscope; TEG: thermoelectric generator.