FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2788976780> ?p ?o ?g. }

• W2788976780 abstract "Lead telluride (PbTe) is a renowned thermoelectric material with high energy conversion efficiency in medium to high temperature range. However, the performance of PbTe at room temperature is poor due to its relatively high lattice thermal conductivity, which is difficult to be engineered due to its intrinsic very short phonon mean-free path. By performing systematic first-principles and molecular-dynamics simulations, we report that the room-temperature lattice thermal conductivity of PbTe can be reduced by almost one order of magnitude (86%) using the recent experimentally observed nanotwin structure. The mechanism responsible for the dramatic decrease of thermal conductivity strongly depends on the type and mass of atoms at the twin boundary. For PbTe nanotwinned structures with Te at the twin boundary, phonon transport is dominated by the phonon confinement effect and phonon-twin boundary scattering, and the thermal conductivity converges to the bulk value when half of the periodic length is larger than the dominant phonon mean-free path. The same phenomenon is found in another comparison system of KCl nanotwinned structures. However, when Pb is present at the twin boundary, a scattering mechanism occurs: anharmonicity induced by the twin boundary. Due to the mass difference between Pb and Te, the thermal resistance for Pb residing at the twin boundary is found to be one order of magnitude larger than the case with Te at the twin boundary, which results in much stronger phonon-twin boundary scattering. Consequently, the lowest thermal conductivity of such PbTe nanotwinned structure is only 0.4 W/mK, which is reduced by about sevenfold compared to the bulk value of 2.85 W/mK; finally, the converged thermal conductivity cannot restore the bulk value even when half of the periodic length is much larger than the dominant mean-free path. These results offer useful guidance for the development of PbTe-based thermoelectrics and also suggest that nanotwins are excellent building blocks for enhancing the performance of existing thermoelectrics." @default.
• W2788976780 created "2018-03-06" @default.
• W2788976780 creator A5016679443 @default.
• W2788976780 creator A5051032395 @default.
• W2788976780 creator A5079817603 @default.
• W2788976780 creator A5087733640 @default.
• W2788976780 date "2018-02-09" @default.
• W2788976780 modified "2023-10-17" @default.
• W2788976780 title "Strong anharmonic phonon scattering induced giant reduction of thermal conductivity in PbTe nanotwin boundary" @default.
• W2788976780 cites W1766163788 @default.
• W2788976780 cites W1965177521 @default.
• W2788976780 cites W1981167895 @default.
• W2788976780 cites W1986649227 @default.
• W2788976780 cites W1987636771 @default.
• W2788976780 cites W1990354412 @default.
• W2788976780 cites W2013073809 @default.
• W2788976780 cites W2017347525 @default.
• W2788976780 cites W2018470441 @default.
• W2788976780 cites W2019465613 @default.
• W2788976780 cites W2028285928 @default.
• W2788976780 cites W2029476663 @default.
• W2788976780 cites W2030579991 @default.
• W2788976780 cites W2030687437 @default.
• W2788976780 cites W2031056282 @default.
• W2788976780 cites W2036113194 @default.
• W2788976780 cites W2040028885 @default.
• W2788976780 cites W2042604455 @default.
• W2788976780 cites W2047995032 @default.
• W2788976780 cites W2050601052 @default.
• W2788976780 cites W2066108707 @default.
• W2788976780 cites W2070093297 @default.
• W2788976780 cites W2075748677 @default.
• W2788976780 cites W2076602648 @default.
• W2788976780 cites W2078338131 @default.
• W2788976780 cites W2082118598 @default.
• W2788976780 cites W2099058043 @default.
• W2788976780 cites W2107811452 @default.
• W2788976780 cites W2132236450 @default.
• W2788976780 cites W2138803925 @default.
• W2788976780 cites W2151592156 @default.
• W2788976780 cites W2152609241 @default.
• W2788976780 cites W2207708238 @default.
• W2788976780 cites W2217868480 @default.
• W2788976780 cites W2314142514 @default.
• W2788976780 cites W2326111774 @default.
• W2788976780 cites W2328882217 @default.
• W2788976780 cites W2329225300 @default.
• W2788976780 cites W2342853446 @default.
• W2788976780 cites W2403920824 @default.
• W2788976780 cites W2460268493 @default.
• W2788976780 cites W2512166931 @default.
• W2788976780 cites W2565795669 @default.
• W2788976780 cites W2581784734 @default.
• W2788976780 cites W2593591116 @default.
• W2788976780 cites W2597658354 @default.
• W2788976780 cites W2613957560 @default.
• W2788976780 cites W2751477812 @default.
• W2788976780 cites W4211238368 @default.
• W2788976780 cites W4240873748 @default.
• W2788976780 cites W832976576 @default.
• W2788976780 doi "https://doi.org/10.1103/physrevb.97.085304" @default.
• W2788976780 hasPublicationYear "2018" @default.
• W2788976780 type Work @default.
• W2788976780 sameAs 2788976780 @default.
• W2788976780 citedByCount "32" @default.
• W2788976780 countsByYear W27889767802018 @default.
• W2788976780 countsByYear W27889767802019 @default.
• W2788976780 countsByYear W27889767802020 @default.
• W2788976780 countsByYear W27889767802021 @default.
• W2788976780 countsByYear W27889767802022 @default.
• W2788976780 countsByYear W27889767802023 @default.
• W2788976780 crossrefType "journal-article" @default.
• W2788976780 hasAuthorship W2788976780A5016679443 @default.
• W2788976780 hasAuthorship W2788976780A5051032395 @default.
• W2788976780 hasAuthorship W2788976780A5079817603 @default.
• W2788976780 hasAuthorship W2788976780A5087733640 @default.
• W2788976780 hasConcept C120665830 @default.
• W2788976780 hasConcept C121332964 @default.
• W2788976780 hasConcept C147724859 @default.
• W2788976780 hasConcept C159985019 @default.
• W2788976780 hasConcept C168986899 @default.
• W2788976780 hasConcept C191486275 @default.
• W2788976780 hasConcept C192562407 @default.
• W2788976780 hasConcept C207365445 @default.
• W2788976780 hasConcept C24169881 @default.
• W2788976780 hasConcept C26873012 @default.
• W2788976780 hasConcept C63024428 @default.
• W2788976780 hasConcept C65053842 @default.
• W2788976780 hasConcept C97346530 @default.
• W2788976780 hasConcept C97355855 @default.
• W2788976780 hasConceptScore W2788976780C120665830 @default.
• W2788976780 hasConceptScore W2788976780C121332964 @default.
• W2788976780 hasConceptScore W2788976780C147724859 @default.
• W2788976780 hasConceptScore W2788976780C159985019 @default.
• W2788976780 hasConceptScore W2788976780C168986899 @default.
• W2788976780 hasConceptScore W2788976780C191486275 @default.
• W2788976780 hasConceptScore W2788976780C192562407 @default.
• W2788976780 hasConceptScore W2788976780C207365445 @default.
• W2788976780 hasConceptScore W2788976780C24169881 @default.
• W2788976780 hasConceptScore W2788976780C26873012 @default.

• next