The thermoelectric properties of InxM0.2Co4Sb12 (M=Ba and Pb) double-filled skutterudites

Deng, Le; Jia, Xiaopeng; Ma, Hongan; Su, Taichao; Jie, K.; Guo, Xin

doi:10.1016/j.ssc.2013.03.021

Cited by 8 publications

(3 citation statements)

References 16 publications

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“…A series of In-filled skutterudites of various groups prepared with various methods followed and confirmed that indium was useful as a filler. These investigations were extended to double-filled skutterudites of In with Sn [29], with Ba [3,16,[30][31][32][33][34][35][36][37], with Tl [38], with Pb [35], with Ce [6,[39][40][41][42], with Pr [27], with Nd [21,43], with Yb [7,8,16,19,[44][45][46][47][48][49], with Lu [50], and to triple filled skutterudites of In with Ba and Ce [51], with Ba and Yb [16,52], with La and Yb [47], with Ce and Yb [41,42,53] and Ga and Tl [26]. There are also attempts to improve the TE properties by doping and/or alloying e.g.…”

Section: Introductionmentioning

confidence: 99%

In-doped multifilled n-type skutterudites with ZT= 1.8

et al. 2015

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Section: Introductionmentioning

confidence: 99%

In-doped multifilled n-type skutterudites with ZT= 1.8

et al. 2015

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“…Tremendous research efforts have been made for using both electropositive elements [ 45–48 ] and electronegative elements [ 49–51 ] as rattlers to be filled into the larger icosahedral voids of the skutterudites, resulting in the formation of a filled skutterudite of the type R x Co 4 Sb 12, where R stands for filled atom. These investigations have revealed that the limit of the filling fraction of various types of filling atoms varies as it depends on both the size of the void in the structure and the state (ionic and valence) of the guest atom.…”

Section: Strategies To Enhance Zt By Reducing Thermal Conductivitymentioning

confidence: 99%

“…[43] In 1996, Sales et al were the first to study the electrical and thermal transport characteristics of the filled Ce 0.9 Fe 3 CoSb 12 and La 0.9 Fe 3 CoSb 12 compounds, and they reported a notable low lattice thermal conductivity (L) of about 1.4 W m À1 K À1 , which is seven times less than that of unfilled CoSb 3 , and a correspondingly high TE ZT of greater than unity. [44] Tremendous research efforts have been made for using both electropositive elements [45][46][47][48] and electronegative elements [49][50][51] as rattlers to be filled into the larger icosahedral voids of the skutterudites, resulting in the formation of a filled skutterudite of the type R x Co 4 Sb 12, where R stands for filled atom. These investigations have revealed that the limit of the filling fraction of various types of filling atoms varies as it depends on both the size of the void in the structure and the state (ionic and valence) of the guest atom.…”

Section: Filled Skutteruditesmentioning

confidence: 99%

An Analysis of Thermoelectric Properties of Skutterudites

Saini,

Lone

2023

Physica Status Solidi (b)

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In last two decades or so, thermoelectricity has made a considerable progress with several new materials discovered and a significant improvement in the performance of already existing materials. Among the different classes of materials, skutterudites have emerged as materials having tremendous potential for mid‐temperature thermoelectric applications such as energy harvesting, waste heat recovery, etc. In this review, we discuss the thermoelectric properties and latest research developments that have led to a significant improvement in the thermoelectric performance of skutterudites by reducing their otherwise high thermal conductivity to a greater extent. The enhancement of the thermoelectric performance of skutterudites by various techniques such as nanostructuring, filling of voids is also briefly discussed.This article is protected by copyright. All rights reserved.

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A review of CoSb3-based skutterudite thermoelectric materials

et al. 2020

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The binary skutterudite CoSb3 is a narrow bandgap semiconductor thermoelectric (TE) material with a relatively flat band structure and excellent electrical performance. However, thermal conductivity is very high because of the covalent bond between Co and Sb, resulting in a very low ZT value. Therefore, researchers have been trying to reduce its thermal conductivity by the different optimization methods. In addition, the synergistic optimization of the electrical and thermal transport parameters is also a key to improve the ZT value of CoSb3 material because the electrical and thermal transport parameters of TE materials are closely related to each other by the band structure and scattering mechanism. This review summarizes the main research progress in recent years to reduce the thermal conductivity of CoSb3-based materials at atomic-molecular scale and nano-mesoscopic scale. We also provide a simple summary of achievements made in recent studies on the non-equilibrium preparation technologies of CoSb3-based materials and synergistic optimization of the electrical and thermal transport parameters. In addition, the research progress of CoSb3-based TE devices in recent years is also briefly discussed.

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The thermoelectric properties of InxM0.2Co4Sb12 (M=Ba and Pb) double-filled skutterudites

Cited by 8 publications

References 16 publications

In-doped multifilled n-type skutterudites with ZT= 1.8

In-doped multifilled n-type skutterudites with ZT= 1.8

An Analysis of Thermoelectric Properties of Skutterudites

A review of CoSb3-based skutterudite thermoelectric materials

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