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dc.contributor.authorWang, Guoyu
dc.contributor.authorChung, Duck-Young
dc.contributor.authorUher, Ctirad
dc.contributor.authorBallikaya, Sedat
dc.contributor.authorKanatzidis, Mercouri
dc.contributor.authorAndroulakis, John
dc.contributor.authorTodorov, Ilyia
dc.date.accessioned2021-03-03T15:55:02Z
dc.date.available2021-03-03T15:55:02Z
dc.identifier.citationAndroulakis J., Todorov I., Chung D., Ballikaya S., Wang G., Uher C., Kanatzidis M., "High thermoelectric efficiency in co-doped degenerate p-type PbTe", Symposium DD on Thermoelectric Materials -Growth, Properties, Novel Characterization Methods, and Applications at MRS Spring Meeting, San-Francisco, Kostarika, 5 - 09 Nisan 2010, cilt.1267
dc.identifier.otherav_41794ef2-4f72-46e1-9d36-79d4af9da3f3
dc.identifier.othervv_1032021
dc.identifier.urihttp://hdl.handle.net/20.500.12627/47749
dc.identifier.urihttps://doi.org/10.1557/proc-1267-dd04-03
dc.description.abstractWe explored the effect of K and K-Na substitution for Pb atoms in the lattice of PbTe, in an effort to test a hypothesis for the development of a resonant state that may enhance the thermoelectric power. At 300K the data can adequately be explained by a combination of a single and two-band model for the valence band of PbTe depending on hole density that varies in the range 1-15 x 10(19) cm(-3). A change in scattering mechanism was observed in the temperature dependence of the electrical conductivity, s, for samples concurrently doped with K and Na which results in significantly enhanced s at elevated temperatures and hence power factors. Thermal conductivity data provide evidence of a strong interaction between the light-and the heavy-hole valence bands at least up to 500K. Figure of merits as high as 1.3 at 700K were measured as a result of the enhanced power factors.
dc.language.isoeng
dc.subjectTemel Bilimler
dc.subjectMühendislik ve Teknoloji
dc.subjectFİZİK, YOĞUN MADDE
dc.subjectMALZEME BİLİMİ, MULTIDISCIPLINARY
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectFİZİK, UYGULAMALI
dc.subjectFizik
dc.subjectTemel Bilimler (SCI)
dc.subjectMalzeme Bilimi
dc.subjectYoğun Madde 1:Yapısal, Mekanik ve Termal Özellikler
dc.titleHigh thermoelectric efficiency in co-doped degenerate p-type PbTe
dc.typeBildiri
dc.contributor.departmentNorthwestern University , ,
dc.identifier.volume1267
dc.contributor.firstauthorID805151


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