AIP conference proceedings · 2019 · 11 citations · 6 references
Natural SciencesMaterials EngineeringMaterials ScienceEnergy MaterialsMaterials ChemistryNanomaterialsNanoenergy MaterialsNanomaterial CharacterizationNanoparticle CharacterizationNanostructured Energy MaterialsThermal Properties Of MaterialsThermoelectric MaterialsElectrical Conductivity EnhancementNanoparticlesPolyol SynthesisRietveld AnalysisRietveld RefinementThermoelectric Energy ConversionThermoelectric NanomaterialsThermoelectric Properties
We report here the thermoelectric (TE) properties of CuS nanoparticles (NPs), synthesized by a facile polyol method using CTAB and PVP as surfactants. Systematic characterizations using powder XRD, Rietveld refinement of XRD and Raman spectroscopy confirm their single phase, hexagonal-closed structure with space group P63/mmc and stoichiometric composition, respectively. The presence of surfactants during synthesis of CuS NPs seemingly prevents the volatility of S, making the capped samples a little S-rich and hence enhanced electrical conductivity and thermopower. Consequently, a significant improvement of more than 50% in thermoelectric power factor at 300 K is observed for CTAB and PVP capped CuS NPs as compared to pure one.
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New Directions for Low‐Dimensional Thermoelectric Materials
M. S. Dresselhaus, Gang Chen, Ming Tang et al. · Advanced Materials · 2007 · 4K citations