A Cu-based Cu8−xGe(S, Te)6 argyrodite: its widespan cubic-phase region and ultralow lattice thermal conductivity

Yi-Fen Tsai; Charlotte L. Stern; Bo-Chia Chen; G. Jeffrey Snyder; Hsin-Jay Wu

doi:10.1039/D3TA01476B

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

A Cu-based Cu_8−xGe(S, Te)₆ argyrodite: its widespan cubic-phase region and ultralow lattice thermal conductivity†

Yi-Fen Tsai,^a Charlotte L. Stern,^b Bo-Chia Chen,^a G. Jeffrey Snyder

*^c and Hsin-Jay Wu

*^a

Author affiliations

* Corresponding authors

^a Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
E-mail: ssky0211@nycu.edu.tw

^b Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA

^c Department of Materials Science and Engineering, Northwestern University, Evanston 60208, USA
E-mail: jeff.snyder@northwestern.edu

Abstract

This work discloses a newly-discovered Cu_8−xGe(S, Te)₆ argyrodite stabilizing in a high-symmetry cubic phase in the entire low-to-mid temperature region (250–700 K). Partially substituting the sulfur with tellurium increases the configuration entropy, enabling the Cu_8−xGe(S, Te)₆ as a promising mid-entropy thermoelectric (TE) alloy with ultralow thermal conductivity.

This article is part of the themed collection: #MyFirstJMCA

Download options Please wait...

Supplementary files

Article information

DOI: https://doi.org/10.1039/D3TA01476B
Article type: Communication
Submitted: 10 3 2023
Accepted: 25 4 2023
First published: 25 4 2023

Download Citation

J. Mater. Chem. A, 2023,11, 10532-10537

Permissions

Request permissions

A Cu-based Cu_8−xGe(S, Te)₆ argyrodite: its widespan cubic-phase region and ultralow lattice thermal conductivity

Y. Tsai, C. L. Stern, B. Chen, G. J. Snyder and H. Wu, J. Mater. Chem. A, 2023, 11, 10532 DOI: 10.1039/D3TA01476B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Journal of Materials Chemistry A