Thermoelectric Properties of Lead Chalcogenide Core–Shell Nanostructures
ACS Nano2011Vol. 5(11), pp. 8541–8551
Citations Over TimeTop 10% of 2011 papers
Marcus Scheele, N. Oeschler, Igor Veremchuk, Sven-Ole Peters, Alexander Littig, Andreas Kornowski, Christian Klinke, Horst Weller
Abstract
We present the full thermoelectric characterization of nanostructured bulk PbTe and PbTe-PbSe samples fabricated from colloidal core-shell nanoparticles followed by spark plasma sintering. An unusually large thermopower is found in both materials, and the possibility of energy filtering as opposed to grain boundary scattering as an explanation is discussed. A decreased Debye temperature and an increased molar specific heat are in accordance with recent predictions for nanostructured materials. On the basis of these results we propose suitable core-shell material combinations for future thermoelectric materials of large electric conductivities in combination with an increased thermopower by energy filtering.
Related Papers
- → High-performance SnSe thermoelectric materials: Progress and future challenge(2018)568 cited
- → Optimized Strategies for Advancing n-Type PbTe Thermoelectrics: A Review(2020)95 cited
- → Strategies and challenges of high-pressure methods applied to thermoelectric materials(2019)64 cited
- → Comparison of the electronic and thermoelectric properties of three layered phases Bi2Te3, PbBi2Te4 and PbBi4Te7: LEGO thermoelectrics(2018)20 cited
- → Single‐Molecule Thermoelectric Devices(2022)