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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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Korean J. Met. Mater.
2023;61(7):489-499. Published online 2023 Jun 21
DOI:
https://doi.org/10.3365/KJMM.2023.61.7.489
Abstract
Cu
3
Sb
1–x–y
Ge
x
In
y
Se
4
(0.02 ≤
x
≤ 0.12; 0.04 ≤
y
≤ 0.08) permingeatite compounds doped with Ge and In were prepared using solid-state synthesis. The phases and microstructures were analyzed, and the charge transport and thermoelectric properties were evaluated according to the Ge and In doping content. Most of the samples.....
More
Crossref 1
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Korean J. Met. Mater.
2023;61(6):422-430. Published online 2023 May 18
DOI:
https://doi.org/10.3365/KJMM.2023.61.6.422
Abstract
Cu–Sb–Se ternary chalcogenide compounds composed of earth-abundant low-toxicity elements are attracting attention as economical and ecofriendly semiconductors. Among them, permingeatite (Cu
3
SbSe
4
) is a potential thermoelectric material with high Seebeck coefficient and low lattice thermal conductivity. However, it is necessary to improve its thermoelectric properties through doping, as it has low.....
More
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Korean J. Met. Mater.
2023;61(4):269-276. Published online 2023 Mar 22
DOI:
https://doi.org/10.3365/KJMM.2023.61.4.269
Abstract
Permingeatite (Cu
3
SbSe
4
) is a promising thermoelectric material with narrow bandgap energy and large carrier effective mass. However, doping is required to improve its electrical conductivity and thermoelectric properties. In this study, Cu
3
Sb
1−y
(Al/In)
y
Se
4
doped with B
III
-group elements (Al or In) at the Sb sites was synthesized using mechanical alloying followed by.....
More
Web of Science 1
Crossref 1
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Korean J. Met. Mater.
2023;61(1):46-53. Published online 2022 Dec 28
DOI:
https://doi.org/10.3365/KJMM.2023.61.1.46
Abstract
In this study, Cu
3
Sb
1-y
Sn
y
Se
4
(0 ≤ y ≤ 0.08) permingeatites were synthesized via mechanical alloying followed by hot pressing. The phase transformation, microstructure, charge transport parameters of the permingeatites, and their thermoelectric properties were analyzed. The permingeatites were present in a single phase with a tetragonal structure, and secondary phases.....
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Korean J. Met. Mater.
2022;60(8):593-600. Published online 2022 Jul 12
DOI:
https://doi.org/10.3365/KJMM.2022.60.8.593
Abstract
In this study, mechanical alloying was performed to synthesize permingeatite Cu
3
Sb
1-x-y
Sn
x
Bi
y
Se
4
(0.02 ≤ x ≤ 0.06 and 0.02 ≤ y ≤ 0.04) doped with Sn and Bi. Hot pressing was subsequently conducted to achieve dense sintered bodies. When the Bi content was constant, the carrier concentration increased with the Sn.....
More
Web of Science 2
Crossref 2
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Korean J. Met. Mater.
2022;60(5):384-390. Published online 2022 Apr 22
DOI:
https://doi.org/10.3365/KJMM.2022.60.5.384
Abstract
Cu-based ternary chalcogenides composed of earth-abundant and nontoxic elements are considered promising thermoelectric materials, although there are few reports on them. In our previous studies, optimal mechanical alloying (MA) and hot pressing (HP) were used to synthesize Cu
3
SbS
4
(famatinite) and Cu
3
SbSe
4
(permingeatite). In this study, solid solutions of Cu
3
SbS
4-y
Se
y
(y.....
More
Web of Science 1
Crossref 2
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Korean J. Met. Mater.
2021;59(6):422-429. Published online 2021 May 26
DOI:
https://doi.org/10.3365/KJMM.2021.59.6.422
Abstract
Permingeatites Cu
3
Sb
1−y
Ge
y
Se
4
(0 ≤ y ≤ 0.14) were synthesized by mechanical alloying and hot pressing. The charge-transport parameters (Hall coefficient, carrier concentration, mobility, and Lorenz number) and thermoelectric properties (electrical conductivity, Seebeck coefficient, power factor, thermal conductivity, and figure of merit) were examined with respect to the Ge doping level......
More
Web of Science 6
Crossref 6
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