Wearable thermoelectric energy harvester by using waste heat from human body. we report a stretchable TEG (S-TEG) (over 50% stretchability of the entire device) that is geometrically suitable for various complex and dynamic surfaces of heat sources. The S-TEG consists of hot-pressed nanolayered p-(Sb2Te3) and n-(Bi2Te3)-type thermoelectric couple arrays and exploits the wavy serpentine interconnects to integrate all units. (https://pubs.acs.org/doi/full/10.1021/acs.nanolett.0c01225)
