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Effects of Double Doping Germanium and Indium on the Thermoelectric Properties of Permingeatite
Bong-Ki Hong, Il-Ho Kim
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

Cu3Sb1–x–yGexInySe4 (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

Improved Thermoelectric Performance of Cu<sub>3</sub>Sb<sub>1xy</sub>Sn<sub>x</sub>In<sub>y</sub>Se<sub>4</sub> Permingeatites Double-Doped with Sn and In
Ho-Jeong Kim, Il-Ho Kim
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

Cu–Sb–Se ternary chalcogenide compounds composed of earth-abundant low-toxicity elements are attracting attention as economical and ecofriendly semiconductors. Among them, permingeatite (Cu3SbSe4) 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

Effects of Sn and In Double-Doping on the Thermoelectric Performance of Cu<sub>3</sub>Sb<sub>1-x-y</sub>Sn<sub>x</sub>In<sub>y</sub>S<sub>4</sub> Famatinites
Sang Yun, Il-Ho Kim
Korean J. Met. Mater. 2023;61(5):355-362.   Published online 2023 Apr 20
DOI: https://doi.org/10.3365/KJMM.2023.61.5.355

Famatinite (Cu3SbS4 ) is a promising p-type thermoelectric material because of its low lattice thermal conductivity and high Seebeck coefficient. In this study, famatinite powders, double-doped with Sn (a BIV group element) and In (a BIII group element) to give Cu3Sb1-x-ySnxInyS4 (0.02 ≤ x ≤ 0.12 and 0.06 ≤..... More

                   Web of Science 1  Crossref 2
Thermoelectric Performance of Sn and Bi Double-Doped Permingeatite
Hee-Jae Ahn, Il-Ho Kim
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

In this study, mechanical alloying was performed to synthesize permingeatite Cu3Sb1-x-ySnxBiySe4 (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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