Soon, wearable devices can be charged with body heat

We wanted to design a flexible thermoelectric harvester that does not compromise on the material quality of rigid devices yet provides similar or better efficiency, said Mehmet Ozturk, a professor at North Carolina State University in the US. Using rigid devices is not the best option when you consider a number of different factors. Superior contact resistance – or skin contact – with flexible devices, as well as the ergonomic and comfort considerations to the device wearer, researchers said.