Enhancing thermoelectric properties of (Cu,Te) co-doped skutterudite synthesized by solid-state reaction

Qin, Bingke; Ji, Yonghua; Lei, Yizhu; Li, Yong

doi:10.1016/j.ceramint.2024.05.130

Ceramics International

2024

DOI: 10.1016/j.ceramint.2024.05.130

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Enhancing thermoelectric properties of (Cu,Te) co-doped skutterudite synthesized by solid-state reaction

Bingke Qin,

Yonghua Ji,

Yizhu Lei

et al.

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2024

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Cited by 2 publications

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Unraveling the structural and thermoelectric properties of the Sn-doped filled skutterudite Sm (Fe Ni1-)Sb11.5Sn0.5 (y = 0.17–0.34, x = 0.43–0.64)

Piscino,

Latronico,

Manfrinetti

et al. 2024

Journal of Alloys and Compounds

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Unraveling the structural and thermoelectric properties of the Sn-doped filled skutterudite Sm (Fe Ni1-)Sb11.5Sn0.5 (y = 0.17–0.34, x = 0.43–0.64)

Piscino,

Latronico,

Manfrinetti

et al. 2024

Journal of Alloys and Compounds

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Enhanced Thermoelectric Transport Properties of Electronegative-Element-Filled and (Ni, Te) Co-Doped Skutterudites through S Filling

Wang,

Jiang

2024

Crystals

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Recently, there has been a growing interest in skutterudite (SKD) compounds containing electronegative elements such as Br, Cl, S, Se, and Te, owing to their increased diversity and the versatility of filler atoms. This study focused on the thermoelectric performance of a series of (Ni, Te) co-doped SKDs filled with the electronegative element S, denoted as SxNi0.4Co3.6Sb11.2Te0.8 (x = 0, 0.1, 0.2, and 0.3). These compounds were prepared using a combination of a solid-state reaction and spark plasma sintering techniques. The results showed that (Ni, Te) co-doping introduced excess electrons in the SKD lattice, while the incorporation of the element S into the SKD voids optimized carrier concentration. This led to a considerable increase in the absolute Seebeck coefficient to 110.6 μV K−1 at ambient temperatures. The presence of S fillers induced phonon resonance scattering and point scattering, which reduced lattice thermal conductivity and ultimately improved the thermoelectric figure of merit zT, which reached 0.93 for S0.3Ni0.4Co3.6Sb11.2Te0.8 at 823 K.

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Enhancing thermoelectric properties of (Cu,Te) co-doped skutterudite synthesized by solid-state reaction

Cited by 2 publications

References 20 publications

Unraveling the structural and thermoelectric properties of the Sn-doped filled skutterudite Sm (Fe Ni1-)Sb11.5Sn0.5 (y = 0.17–0.34, x = 0.43–0.64)

Unraveling the structural and thermoelectric properties of the Sn-doped filled skutterudite Sm (Fe Ni1-)Sb11.5Sn0.5 (y = 0.17–0.34, x = 0.43–0.64)

Enhanced Thermoelectric Transport Properties of Electronegative-Element-Filled and (Ni, Te) Co-Doped Skutterudites through S Filling

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