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An argyrodite-type Ag9GaSe6 liquid-like material with ultralow thermal conductivity and high thermoelectric performance

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Abstract

We report a ternary argyrodite-type Ag9GaSe6 compound as a promising thermoelectric material in a moderate temperature range. Due to high carrier mobility and ultralow lattice thermal conductivity, a maximum ZT of 1.1 was obtained with stoichiometric Ag9GaSe6 at 800 K. Via introducing slight Se-deficiency to optimize the carrier concentration, the maximum ZT is further enhanced to 1.3.

Graphical abstract: An argyrodite-type Ag9GaSe6 liquid-like material with ultralow thermal conductivity and high thermoelectric performance

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Publication details

The article was received on 30 Jul 2017, accepted on 02 Oct 2017 and first published on 02 Oct 2017


Article type: Communication
DOI: 10.1039/C7CC05935C
Citation: Chem. Commun., 2017, Advance Article
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    An argyrodite-type Ag9GaSe6 liquid-like material with ultralow thermal conductivity and high thermoelectric performance

    B. Jiang, P. Qiu, H. Chen, Q. Zhang, K. Zhao, D. Ren, X. Shi and L. Chen, Chem. Commun., 2017, Advance Article , DOI: 10.1039/C7CC05935C

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