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Biomolecule-Assisted Hydrothermal Synthesis of Hierarchical Nanostructured Sb2Te3

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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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Keywords: ANTIMONY TELLURIDE; HIERARCHICAL NANOSTRUCTURE; HYDROTHERMAL SYNTHESIS; THERMOELECTRIC MATERIAL

Document Type: Research Article

Publication date: September 1, 2013

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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