Scientists find novel way to optimize thermoelectric properties of bismuth telluride alloys

https://phys.org/news/2022-10-scientists-optimize-thermoelectric-properties-bismuth.html

"thermoelectric properties BTS-xvol % Ag9AlSe6 (x= 0, 0.15, 0.25, 0.35, 0.50 and 0.70)... introducing N-type nanoparticles Ag9AlSe6 into BTS.... Ag9AlSe6 nanoparticles added to BTS, the phonon scattering and phase boundary were enhanced, the Seebeck coefficient was enhanced and the thermal conductivity was reduced... thermoelectric performance... improved by 40% compared with the original BTS, and the ZTmax value reaches 1.2 (423K).... ZTave of BTS-0.50vol% Ag9AlSe6 was 1.1 (300K-473K)"