Enhanced thermoelectric performance in Mg3+xSb1.5Bi0.49Te0.01via engineering microstructure through melt-centrifugation

Author:

Ozen Melis12345ORCID,Yahyaoglu Mujde12345ORCID,Candolfi Christophe678910ORCID,Veremchuk Igor11121314,Kaiser Felix151614ORCID,Burkhardt Ulrich151614,Snyder G. Jeffrey17181920ORCID,Grin Yuri151614,Aydemir Umut534212ORCID

Affiliation:

1. Graduate School of Sciences and Engineering

2. Koç University

3. Istanbul-34450

4. Turkey

5. Koç University Boron and Advanced Materials Application and Research Center

6. Institut Jean Lamour

7. UMR 7198 CNRS

8. Université de Lorraine

9. 54011 Nancy

10. France

11. Helmholtz-Zentrum Dresden-Rossendorf

12. Institute of Ion Beam Physics and Materials Research

13. 01328 Dresden

14. Germany

15. Max-Planck-Institut für Chemische Physik fester Stoffe

16. Dresden-01187

17. Department of Materials Science and Engineering

18. Northwestern University

19. Evanston

20. USA

21. Department of Chemistry

Abstract

By applying the melt-centrifugation, porosity and dislocations are introduced in the microstructure of the n-type Zintl phase Mg3+xSb1.5Bi0.49Te0.01leading to significantly low κl (∼ 0.33 W m−1 K−1 at 723 K) and enhanced zT (∼ 1.64 at 723 K).

Funder

The Scientific and Technological Research Council of Turkey

National Institute of Standards and Technology

Publisher

Royal Society of Chemistry (RSC)

Subject

General Materials Science,Renewable Energy, Sustainability and the Environment,General Chemistry

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