Discordant nature of Cd in GeTe enhances phonon scattering and improves band convergence for high thermoelectric performance-Reference-Cited by-同舟云学术

Discordant nature of Cd in GeTe enhances phonon scattering and improves band convergence for high thermoelectric performance

Published:2020 Issue:3 Volume:8 Page:1193-1204
ISSN:2050-7488
Container-title:Journal of Materials Chemistry A
language:en
Short-container-title:J. Mater. Chem. A

Author:

Nshimyimana Evariste¹²³⁴,Hao Shiqiang⁵⁶⁷⁸,Su Xianli¹²³⁴^ORCID,Zhang Cheng¹²³⁴^ORCID,Liu Wei¹²³⁴^ORCID,Yan Yonggao¹²³⁴,Uher Ctirad⁹¹⁰¹¹⁸,Wolverton Chris⁵⁶⁷⁸,Kanatzidis Mercouri G.⁵⁶⁷⁸¹²^ORCID,Tang Xinfeng¹²³⁴^ORCID

Affiliation:

1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing

2. Wuhan University of Technology

3. Wuhan 430070

4. China

5. Department of Materials Science and Engineering

6. Northwestern University

7. Evanston

8. USA

9. Department of Physics

10. University of Michigan

11. Ann Arbor

12. Department of Chemistry

Abstract

Alloying CdTe in GeTe promotes the band convergence and intensifies phonon scattering due to the discordant nature of Cd in GeTe. Upon optimizing carrier concentrationviaSb doping, we obtain a peakZTof 1.8 at 700 K and a high averageZTof 1.3.

Funder

National Basic Research Program of China

National Natural Science Foundation of China

Publisher

Royal Society of Chemistry (RSC)

Subject

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

Link

http://pubs.rsc.org/en/content/articlepdf/2020/TA/C9TA10436D

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