Thermoelectric properties of Sb-doped tin oxide by a one-step solid-state reaction

Recently, oxide-based materials have proven to be potential thermoelectric materials at high temperatures. In this work, the thermoelectric properties of one-step solid-state sintered Sn1-xSbxO2 (x = 0, 0.005, 0.01, 0.02, 0.03, 0.04) ceramic pellets were investigated in detail . It was confirmed that the addition of Sb significantly alters the thermoelectric properties of SnO2 due to the increase in the carrier concentration, which increases the electrical conductivity. The Seebeck coefficient values of a l l the solid solutions were negative, which indicates that these samples have n-type conduction. The thermoelectric performance of the material was evaluated by determining the zT value and the best composition was Sn0.98Sb0.02O2 with zT similar to 0.06 at 1073 K .

Automated summary

This study investigated the thermoelectric properties of Sn1-xSbxO2 ceramic pellets and found that the addition of Sb significantly altered the electrical conductivity and carrier concentration, leading to improved thermoelectric performance with the best composition being Sn0.98Sb0.02O2.