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

S. R. Popuri; A. J. M. Scott; R. A. Downie; M. A. Hall; E. Suard; R. Decourt; M. Pollet; J.-W. G. Bos

doi:10.1039/C4RA06871H

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

S. R. Popuri,^a A. J. M. Scott,^a R. A. Downie,^a M. A. Hall,^a E. Suard,^b R. Decourt,^c M. Pollet^c and J.-W. G. Bos*^a

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* Corresponding authors

^a Institute of Chemical Sciences and Centre for Advanced Energy Storage and Recovery, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, UK
E-mail: j.w.g.bos@hw.ac.uk

^b Institut Laue-Langevin, Grenoble, France

^c CNRS, Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer, Pessac F-33608, France

Abstract

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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Article information

DOI: https://doi.org/10.1039/C4RA06871H
Article type: Communication
Submitted: 26 May 2014
Accepted: 25 Jul 2014
First published: 25 Jul 2014

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RSC Adv., 2014,4, 33720-33723

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

S. R. Popuri, A. J. M. Scott, R. A. Downie, M. A. Hall, E. Suard, R. Decourt, M. Pollet and J.-W. G. Bos, RSC Adv., 2014, 4, 33720 DOI: 10.1039/C4RA06871H

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