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Electronic Transport and Thermoelectric Properties of Te-Doped Tetrahedrites Cu12Sb4-yTeyS13
Sung-Gyu Kwak, Go-Eun Lee, Il-Ho Kim
Korean J. Met. Mater. 2021;59(8):560-566.   Published online 2021 Jul 5
DOI: https://doi.org/10.3365/KJMM.2021.59.8.560

Abstract
Tetrahedrite is a promising thermoelectric material mainly due to its low thermal conductivity, a consequence of its complicated crystal structure. However, tetrahedrite has a high hole concentration; therefore, optimizing carrier concentration through doping is required to maximize the power factor. In this study, Te-doped tetrahedrites Cu12Sb4-yTeyS13 (0.1 ≤ y ≤..... More

                           Cited By 1
Solid-State Synthesis and Thermoelectric Properties of Tetrahedrites Cu12Sb4-yBiyS13
Sung-Gyu Kwak, Ji-Hee Pi, Go-Eun Lee, Il-Ho Kim
Korean J. Met. Mater. 2020;58(4):272-277.   Published online 2020 Mar 9
DOI: https://doi.org/10.3365/KJMM.2020.58.4.272

Abstract
Tetrahedrite has low lattice thermal conductivity because of the lone-pair electrons of Sb, which cause the Cu atoms to vibrate at a low frequency and high amplitude. The synthesis of tetrahedrite compounds by conventional melting methods requires a long-time reaction and annealing. However, a homogeneous and solid-state synthesis can be..... More

                           Cited By 15
Electronic Transport and Thermoelectric Properties of Cu12-xZnxSb4S13 Tetrahedrites Prepared by Mechanical Alloying and Hot Pressing
Sung-Gyu Kwak, Go-Eun Lee, Il-Ho Kim
Korean J. Met. Mater. 2019;57(5):328-333.   Published online 2019 Apr 10
DOI: https://doi.org/10.3365/KJMM.2019.57.5.328

Abstract
Tetrahedrite Cu12Sb4S13 has low lattice thermal conductivity because of the lone-pair electrons of Sb, which cause the Cu atoms to vibrate at a low frequency and high amplitude. When the Cu atoms of Cu12Sb4S13 are partially substituted with a transition metal, changes in the Cu vibrations can intensify phonon scattering,..... More

                           Cited By 5
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