Glass-like thermal conductivity in SrTiO3 thermoelectrics induced by a-site vacancies

Glass-like thermal conductivity in SrTiO3 thermoelectrics induced by a-site vacancies

The introduction of A-site vacancies in SrTiO3 results in a glass-like thermal conductivity while Nb substituted samples maintain good electrical conductivity. This unexpected result brings SrTiO3 one step closer to being a high-performing phonon-glass electron-crystal thermoelectric material.

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Veröffentlicht in:RSC advances 2014, Vol.4 (64), p.33720-33723
Hauptverfasser: Popuri, Srinivasa Rao, Scott, Alexander J., Downie, Ruth, Hall, A. J. Michael, Suard, Emmanuelle, Decourt, Rodolphe, Pollet, Michaël, Bos, Jan-Willem
Format: Artikel
Sprache:eng
Schlagworte:
Chemical Sciences
Material chemistry
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Zusammenfassung:The introduction of A-site vacancies in SrTiO3 results in a glass-like thermal conductivity while Nb substituted samples maintain good electrical conductivity. This unexpected result brings SrTiO3 one step closer to being a high-performing phonon-glass electron-crystal thermoelectric material.
ISSN:2046-2069
DOI:10.1039/C4RA06871H