We report on the successful hydrothermal synthesis of Bi 0.5Sb 1.5Te 3, using water as the solvent. The products of the hydrothermally prepared Bi 0.5 Sb 1.5Te 3 were hexagonal platelets with edges of 200-1500 nm and thicknesses of 30-50 nm. Both the Seebeck coefficient and electrical conductivity of the hydrothermally prepared Bi 0.5Sb 1.5Te 3 were larger than those of the solvothermally prepared counterpart. Hall measurements of Bi 0.5Sb 1.5Te 3 at room temperature indicated that the charge carrier was p-type, with a carrier concentration of 9.47 × 10 18 cm -3 and 1.42 × 10 19 cm -3 for the hydrothermally prepared Bi 0.5Sb 1.5Te 3 and solvothermally prepared sample, respectively. The thermoelectric power factor at 290 K was 10.4 μW/cm K 2 and 2.9 μW/cm K 2 for the hydrothermally prepared Bi 0.5Sb 1.5Te 3 and solvothermally prepared sample, respectively.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry