Graphene addition improved figure of merit in SnTe prepared by the rapid hybrid microwave solid-state method

Graphene-derived composites: a new Frontier in thermoelectric energy conversion

“…At 475 K, the maximum value of ZT was 0.21, achieved with a graphene content of 0.2 vol%, which is 31% higher than pure Bi 2 Te 3 material. Gobpant et al 157 developed SnTe-based powders using a hybrid microwave solid-state process, including SnTe, Sn 0.95 Bi 0.05 Te, and SnTe, with graphene addition. At 325 K, the SnTe with five wt% graphene demonstrated a reasonable PF, and the thermal conductivity decreased from 10 mW m À1 K À2 for SnTe to 2 mW m À1 K À2 .…”