This paper presents a mass-producible, potentially low-cost, fully screen-printed flexible origami thermoelectric generator (TEG). The device, created using a two-step folding technique, achieves a high thermocouple density (190 per cm²) and a power output of 47.8 µWcm² from a 30 K temperature difference. Its properties are adjustable via the print layout, enabling thermal impedance matching to various heat sources. The researchers demonstrate its application by powering a wireless weather sensor.

Andres Georg Rösch, André Gall, Silas Aslan, Matthias Hecht, Leonard Franke, Md. Mofasser Mallick, Lara Penth, Daniel Bahro, Daniel Friderich, Uli Lemmer