fig5

Figure 5. (A) 3D printing process; (B) An infrared thermal image that illustrates the thermal gradient within the 3D-printed TEG sample; (C) Performance evaluation of TEGs. The current and voltage were measured using a variable load resistor; (D) Measured current-dependent voltage and power with ΔT of 32 K; (E) Normalized output power in the cases of different number of cuts^[89]. TEG: Thermoelectric generator.