10-16 June 2018
Dalhousie University
America/Halifax timezone
Welcome to the 2018 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2018!

POS-29 Computational and Experimental Investigations of Inverse Perovskites as Thermoelectric Materials

12 Jun 2018, 18:00
1h 30m
SUB McInnes Hall (Dalhousie University)

SUB McInnes Hall

Dalhousie University

Poster (Non-Student) / Affiche (Non-étudiant(e)) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) DCMMP Poster Session & Finals: Poster Competition and Mingle Session with Industry Partners (28) / Employers | Session d'affiches DPMCM et finales: Concours d'affiches et rencontres avec partenaires industriels et employeurs (28)

Speaker

Dr Jan-Hendrik Pöhls (University of Alberta)

Description

More than half of the energy produced worldwide is currently lost as waste heat and recovering a
fraction of the lost energy would have an enormous impact on global climate change. In this sense, thermoelectric materials can convert waste heat to useful electricity. However, because of their
low efficiency, high cost, and use of scarce resources, thermoelectric materials are not widely
applied. Oxygen-containing inverse perovskites can provide a potential way to reduce the cost and
enhance the sustainability of thermoelectric materials. In general, the presence of oxygen may be
expected to reduce electron mobility and hence electrical conductivity; however, our computational
studies revealed that oxygen-containing inverse perovskites have a high electrical conductivity.
Furthermore, high Seebeck coefficients were calculated, originating from multiple degenerate bands
leading to an enhanced power factor. Preliminary experimental results confirm the high electrical
conductivity of these materials.

Primary author

Dr Jan-Hendrik Pöhls (University of Alberta)

Co-author

Prof. Arthur Mar (University of Alberta)

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