Search results for "Thermoelectric properties"

showing 3 items of 3 documents

Synthesis and thermoelectric characterisation of bismuth nanoparticles

2009

An effective method of preparation of bismuth nanopowders by thermal decomposition of bismuth dodecyl-mercaptide Bi(SC12H25)3 and preliminary results on their thermoelectric properties are reported. The thermolysis process leads to Bi nanoparticles due to the efficient capping agent effect of the dodecyl-disulfide by-product, which strongly bonds the surface of the Bi clusters, preventing their aggregation and significantly reducing their growth rate. The structure and morphology of the thermolysis products were investigated by differential scanning calorimetry, thermogravimetry, X-ray diffractometry, 1H nuclear magnetic resonance spectroscopy, scanning electron microscopy, and energy dispe…

Materials scienceSettore AGR/13 - Chimica AgrariaNanopowderAnalytical chemistryEnergy-dispersive X-ray spectroscopyNanoparticlechemistry.chemical_elementBioengineeringSemimetal–semiconductor transitionBismuthDifferential scanning calorimetrySeebeck coefficientbismuthThermoelectric effectSettore CHIM/01 - Chimica AnaliticaGeneral Materials SciencenanotechnologyBismuth nanoparticleThermoelectric characteristicThermal decompositionSettore CHIM/05 - Scienza E Tecnologia Dei Materiali PolimericiGeneral ChemistryCondensed Matter Physicsthermoelectric propertiesAtomic and Molecular Physics and OpticsThermogravimetrychemistryModeling and SimulationMercaptide thermolysinanoparticlesJournal of Nanoparticle Research
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Thickness-dependent properties of ultrathin bismuth and antimony chalcogenide films formed by physical vapor deposition and their application in ther…

2021

This work was supported by the European Regional Development Fund (ERDF) project No 1.1.1.1/16/A/257. J. A. acknowledges the ERDF project No. 1.1.1.2/1/16/037. Institute of Solid State Physics, University of Latvia, Latvia as the Center of Excellence has received funding from the European Union's Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017 TeamingPhase2 under grant agreement No. 739508, project CAMART2 . The raw/processed data required to reproduce these findings cannot be shared at this time as the data also form a part of an ongoing study.

Materials scienceThickness-dependent thermoelectric propertiesChalcogenideMaterials Science (miscellaneous)Energy Engineering and Power Technologychemistry.chemical_element02 engineering and technology010402 general chemistry7. Clean energy01 natural sciencesBismuthlaw.inventionchemistry.chemical_compoundUltrathin filmlawSeebeck coefficientBismuth chalcogenide:NATURAL SCIENCES:Physics [Research Subject Categories]Thin filmFused quartzAntimony tellurideRenewable Energy Sustainability and the Environmentbusiness.industryAntimony telluride021001 nanoscience & nanotechnology0104 chemical sciencesFuel TechnologyNuclear Energy and EngineeringchemistryPhysical vapor depositionOptoelectronics0210 nano-technologybusinessMolecular beam epitaxyNarrow band gap layered semiconductor
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Enhanced thermoelectric properties of lightly Nb doped SrTiO3 thin films

2021

Novel thermoelectric materials developed for operation at room temperature must have similar or better performance along with being as ecofriendly as those commercially used, e.g., BiTe, in terms of their toxicity and cost. In this work, we present an in-depth study of the thermoelectric properties of epitaxial Nb-doped strontium titanate (SrTiNbO) thin films as a function of (i) doping concentration, (ii) film thickness and (iii) substrate type. The excellent crystal quality was confirmed by high resolution transmission electron microscopy and X-ray diffraction analysis. The thermoelectric properties were measured by the three-omega method (thermal conductivity) and van der Pauw method (el…

Materials scienceBioengineering02 engineering and technology010402 general chemistryMaximum power factor01 natural scienceschemistry.chemical_compoundVan der Pauw methodSeebeck coefficientThermoelectric effectFigure of meritGeneral Materials ScienceHigh-resolution transmission electron microscopyDoping concentrationLanthanum Strontium AluminateThermo-Electric materialsbusiness.industryDopingGeneral EngineeringThermoelectric figure of meritGeneral Chemistry021001 nanoscience & nanotechnologyThermoelectric materialsAtomic and Molecular Physics and Optics0104 chemical scienceschemistryThermoelectric propertiesStrontium titanateOptoelectronicsDifferent substratesSeebeck coefficient measurement0210 nano-technologybusiness
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