"Significant Enhancement of Thermoelectric Figure of Merit in BiSbTe-Ba" by Guangsai Yang, Lina Sang et al.
Abstract Bismuth telluride-based materials are already being commercially developed for thermoelectric (TE) cooling devices and power generators. However, the relatively low efficiency, which is characterized by a TE figure of merit, zT, is the main obstacle to more widespread application. Significant advances in the TE performance have been made through boundary engineering via embedding nanoinclusions or nanoscale grains. Herein, an effective approach to greatly enhance the TE performance of p-type BiSbTe material by incorporating carbon microfibers is reported. A high zT of 1.4 at 375 K an...