Thermoelectric generators: A review of applications

Champier, Daniel

doi:10.1016/j.enconman.2017.02.070

Cited by 1,053 publications

(542 citation statements)

References 88 publications

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“…[1,2] Unfortunately, the high cost and relatively low conversion efficiencies of even high quality thermoelectric materials currently restrict usage to small scale and niche applications, making further advancement necessary to achieve widespread commercialization. [1,2] Unfortunately, the high cost and relatively low conversion efficiencies of even high quality thermoelectric materials currently restrict usage to small scale and niche applications, making further advancement necessary to achieve widespread commercialization.…”

Section: Introductionmentioning

confidence: 99%

High Thermoelectric Performance in PbSe–NaSbSe₂ Alloys from Valence Band Convergence and Low Thermal Conductivity

Slade

Bailey

Grovogui

et al. 2019

Advanced Energy Materials

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PbSe is an attractive thermoelectric material due to its favorable electronic structure, high melting point, and lower cost compared to PbTe. Herein, the hitherto unexplored alloys of PbSe with NaSbSe 2 (NaPb m SbSe m+2 ) are described and the most promising p-type PbSe-based thermoelectrics are found among them. Surprisingly, it is observed that below 500 K, NaPb m SbSe m+2 exhibits unorthodox semiconducting-like electrical conductivity, despite possessing degenerate carrier densities of ≈10 20 cm −3 . It is shown that the peculiar behavior derives from carrier scattering by the grain boundaries. It is further demonstrated that the high solubility of NaSbSe 2 in PbSe augments both the thermoelectric properties while maintaining a rock salt structure. Namely, density functional theory calculations and photoemission spectroscopy demonstrate that introduction of NaSbSe 2 lowers the energy separation between the L-and Σ-valence bands and enhances the power factors under 700 K. The crystallographic disorder of Na + , Pb 2+ , and Sb 3+ moreover provides exceptionally strong point defect phonon scattering yielding low lattice thermal conductivities of 1-0.55 W m −1 K −1 between 400 and 873 K without nanostructures. As a consequence, NaPb 10 SbSe 12 achieves maximum ZT ≈1.4 near 900 K when optimally doped. More importantly, NaPb 10 SbSe 12 maintains high ZT across a broad temperature range, giving an estimated record ZT avg of ≈0.64 between 400 and 873 K, a significant improvement over existing p-type PbSe thermoelectrics.

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Section: Introductionmentioning

confidence: 99%

High Thermoelectric Performance in PbSe–NaSbSe₂ Alloys from Valence Band Convergence and Low Thermal Conductivity

Slade

Bailey

Grovogui

et al. 2019

Advanced Energy Materials

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“…Normally, there are two approaches to enhance the ZT value. One is the optimization of power factor by band engineering or tuning the carrier concentration and the other is depressing the κ L by point defect scattering, alloy scattering, nanostructuring et al [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler Compounds

Zhao

Wang

et al. 2018

Metals

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Abstract:The Ni-doped ZrCo 1−x Ni x Sb half-Heusler compounds were prepared by arc-melting and spark plasma sintering technology. X-ray diffraction analysis results showed that all samples were crystallized in a half-Heusler phase. Thermoelectric properties of ZrCo 1−x Ni x Sb compounds were measured from room temperature to 850 K. The electrical conductivity and the absolute value of Seebeck coefficient increased with the Ni-doping content increasing due to the Ni substitution at Co. sites. The lattice thermal conductivity of ZrCo 1−x Ni x Sb samples was depressed dramatically because of the acoustic phonon scattering and point defect scattering. The figure of merit of ZrCo 1−x Ni x Sb compounds was improved due to the decreased thermal conductivity and improved power factor. The maximum ZT value of 0.24 was achieved for ZrCo 0.92 Ni 0.08 Sb sample at 850 K.

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“…Indeed, these oxides have been applied in several areas such as, optical windows [1], surface acoustic devices [2] and solar cells [3]. In the field of the environment, oxides have played an important role, particularly in photocatalysis and gas detection.…”

Section: Introductionmentioning

confidence: 99%

An Attempt to Study MoO3-Like TCO Nanolayered Compound in Terms of structural and Ethanol Sensitivity Application

Boukhachem¹

2018

RDMS

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Thermoelectric generators: A review of applications

Cited by 1,053 publications

References 88 publications

High Thermoelectric Performance in PbSe–NaSbSe₂ Alloys from Valence Band Convergence and Low Thermal Conductivity

High Thermoelectric Performance in PbSe–NaSbSe₂ Alloys from Valence Band Convergence and Low Thermal Conductivity

Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler Compounds

An Attempt to Study MoO3-Like TCO Nanolayered Compound in Terms of structural and Ethanol Sensitivity Application

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Thermoelectric generators: A review of applications

Cited by 1,053 publications

References 88 publications

High Thermoelectric Performance in PbSe–NaSbSe2 Alloys from Valence Band Convergence and Low Thermal Conductivity

High Thermoelectric Performance in PbSe–NaSbSe2 Alloys from Valence Band Convergence and Low Thermal Conductivity

Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler Compounds

An Attempt to Study MoO3-Like TCO Nanolayered Compound in Terms of structural and Ethanol Sensitivity Application

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Resources

About

High Thermoelectric Performance in PbSe–NaSbSe₂ Alloys from Valence Band Convergence and Low Thermal Conductivity

High Thermoelectric Performance in PbSe–NaSbSe₂ Alloys from Valence Band Convergence and Low Thermal Conductivity