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Materials Research Letters Volume 9, 2021 - Issue 9
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Original Report

n-Type thermoelectric metal chalcogenide (Ag,Pb,Bi)(S,Se,Te) designed by multi-site-type high-entropy alloying

Aichi Yamashitaa Department of Physics, Tokyo Metropolitan University, Tokyo, JapanView further author information
,
Yosuke Gotoa Department of Physics, Tokyo Metropolitan University, Tokyo, JapanView further author information
,
Akira Miurab Faculty of Engineering, Hokkaido University, Hokkaido, JapanORCID Iconhttps://orcid.org/0000-0003-0388-9696View further author information
ORCID Icon,
Chikako Moriyoshic Graduate School of Advanced Science and Engineering, Hiroshima University, Hiroshima, JapanView further author information
,
Yoshihiro Kuroiwac Graduate School of Advanced Science and Engineering, Hiroshima University, Hiroshima, JapanView further author information
&
Yoshikazu Mizuguchia Department of Physics, Tokyo Metropolitan University, Tokyo, JapanCorrespondence[email protected]
View further author information
Pages 366-372 | Received 11 Feb 2021, Published online: 21 May 2021

Figures & data

Figure 1. Synchrotron X-ray diffraction patterns of Ag0.25Pb0.50Bi0.25S0.40Se0.50Te0.10. Schematic images of crystal structure for PbSe and Multi-site-type high-entropy alloyed (MST-HEA) Ag0.25Pb0.50Bi0.25S0.40Se0.50Te0.10 with estimated ΔSmix.

Figure 1. Synchrotron X-ray diffraction patterns of Ag0.25Pb0.50Bi0.25S0.40Se0.50Te0.10. Schematic images of crystal structure for PbSe and Multi-site-type high-entropy alloyed (MST-HEA) Ag0.25Pb0.50Bi0.25S0.40Se0.50Te0.10 with estimated ΔSmix.

Figure 2. (a) Temperature dependence of the electrical resistivity and (b) Seebeck coefficient of Ag0.25Pb0.50Bi0.25S0.40Se0.50Te0.10 and Ag1/3Pb1/3Bi1/3Se as a reference.

Figure 2. (a) Temperature dependence of the electrical resistivity and (b) Seebeck coefficient of Ag0.25Pb0.50Bi0.25S0.40Se0.50Te0.10 and Ag1/3Pb1/3Bi1/3Se as a reference.

Figure 3. (a) Temperature dependences of thermal conductivity (κTotal) and (b) lattice thermal conductivity (κL) for Ag0.25Pb0.50Bi0.25S0.40Se0.50Te0.10 and Ag1/3Pb1/3Bi1/3Se as a reference.

Figure 3. (a) Temperature dependences of thermal conductivity (κTotal) and (b) lattice thermal conductivity (κL) for Ag0.25Pb0.50Bi0.25S0.40Se0.50Te0.10 and Ag1/3Pb1/3Bi1/3Se as a reference.

Figure 4. (a) Temperature dependences of power factor (PF) and (b) figure of merit (ZT) for Ag0.25Pb0.50Bi0.25S0.40Se0.50Te0.10 and Ag1/3Pb1/3Bi1/3Se as a reference.

Figure 4. (a) Temperature dependences of power factor (PF) and (b) figure of merit (ZT) for Ag0.25Pb0.50Bi0.25S0.40Se0.50Te0.10 and Ag1/3Pb1/3Bi1/3Se as a reference.
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