Revolutionizing thermoelectric technology: hourglass-shaped materials achieve a 360% efficiency boost

https://www.postech.ac.kr/eng/revolutionizing-thermoelectric-technology-hourglass-shaped-materials-achieve-a-360-efficiency-boost/?pageds=1&k=&c=

"3D printed high-density micro-layered defects minimizing thermal conductivity and increase the thermoelectric performance index (ZT) to 2.0. This is the highest value achieved for thermoelectric materials produced via 3D printing... controls thermal and electrical transport, instead of conventional microstructure-focused research on thermoelectric materials. It is expected that this approach can be universally applied to all thermoelectric materials and can also be utilized in thermoelectric cooling technologies"