Biomolecule-Assisted Hydrothermal Synthesis of Hierarchical Nanostructured Sb2Te3
A simple biomolecule-assisted hydrothermal approach has been developed for the fabrication of Sb2Te3 thermoelectric nanomaterial. The product has a hierarchical structure which is composed of ordered and aligned plate-like crystals. The nanoplates are about 500 nm in diameter and 50 nm of thickness. The Sb2Te3 powders with no residual organics were hot pressing sintered (HPS) to a p-type nanostructured bulk material, and the thermoelectric (TE) properties were measured. High electrical conductivity (1.52×104 Ω1m–1 at 334 K), high Seebeck coefficient S (168 μV K–1 at 544 K) and low thermal conductivity (0.37 W m–1 K–1 at 319 K) were achieved.
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Document Type: Research Article
Publication date: September 1, 2013
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