Strong phonon scattering by layer structured PbSnS(2) in PbTe based thermoelectric materials.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22807269.
- Also identified by DOI 10.1002/adma.201201565.
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Abstract
The incorporation of PbSnS(2) in PbTe results in a tremendous reduction of the lattice thermal conductivity to 0.8 W/mK at room temperature, a reduction of almost 60% over bulk PbTe. Transmission electron microscopy reveals very high density displacement layers, misfit dislocations, and phase boundaries. Our thermal transport calculations based on modified Debye-Callaway model, well in agreement with the experimental measurements, reveal that the layer structured PbSnS(2) plays an important role in reducing the lattice thermal conductivity.
Medical subject headings
- Lead
- Sulfides
- Tellurium
- Thermal Conductivity
- Tin Compounds