Strong enhancement of phonon scattering through nanoscale grains in lead sulfide thermoelectrics
نویسندگان
چکیده
منابع مشابه
Phonon self-energy and origin of anomalous neutron scattering spectra in SnTe and PbTe thermoelectrics.
The anharmonic lattice dynamics of rock-salt thermoelectric compounds SnTe and PbTe are investigated with inelastic neutron scattering (INS) and first-principles calculations. The experiments show that, surprisingly, although SnTe is closer to the ferroelectric instability, phonon spectra in PbTe exhibit a more anharmonic character. This behavior is reproduced in first-principles calculations o...
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ژورنال
عنوان ژورنال: NPG Asia Materials
سال: 2014
ISSN: 1884-4049,1884-4057
DOI: 10.1038/am.2014.39