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Thermoelectric Characterization (thermoelectric + characterization)
Selected AbstractsSynthesis and Thermoelectric Characterization of Bi2Te3 NanoparticlesADVANCED FUNCTIONAL MATERIALS, Issue 21 2009Marcus Scheele Abstract Here, a novel synthesis for near monodisperse, sub-10,nm Bi2Te3 nanoparticles is reported. A new reduction route to bismuth nanoparticles is described, which are then applied as starting materials in the formation of rhombohedral Bi2Te3 nanoparticles. After ligand removal by a novel hydrazine hydrate etching procedure, the nanoparticle powder is spark plasma sintered to a pellet with preserved crystal grain sizes. Unlike previous works on the properties of Bi2Te3 nanoparticles, the full thermoelectric characterization of such sintered pellets shows a highly reduced thermal conductivity and the same electric conductivity as bulk n-type Bi2Te3. [source] Structure and Thermoelectric Characterization of Ba8Al14Si31.CHEMINFORM, Issue 4 2007Cathie L. Condron Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Synthesis and Thermoelectric Characterization of Bi2Te3 NanoparticlesADVANCED FUNCTIONAL MATERIALS, Issue 21 2009Marcus Scheele Abstract Here, a novel synthesis for near monodisperse, sub-10,nm Bi2Te3 nanoparticles is reported. A new reduction route to bismuth nanoparticles is described, which are then applied as starting materials in the formation of rhombohedral Bi2Te3 nanoparticles. After ligand removal by a novel hydrazine hydrate etching procedure, the nanoparticle powder is spark plasma sintered to a pellet with preserved crystal grain sizes. Unlike previous works on the properties of Bi2Te3 nanoparticles, the full thermoelectric characterization of such sintered pellets shows a highly reduced thermal conductivity and the same electric conductivity as bulk n-type Bi2Te3. [source] Complete Characterization of Thermoelectric Materials by a Combined van der Pauw ApproachADVANCED MATERIALS, Issue 38 2010Johannes de Boor Thermoelectric materials can convert waste heat directly into electrical power and represent an important contribution to lessen energy scarcity. Here we present a novel, simple and inexpensive approach for a complete thermoelectric characterization, by which all relevant quantities, like the electrical conductivity, the thermal conductivity, the Seebeck coefficient, and the figure of merit, can be determined directly. [source] | ||||||||||