Realizing ultralow thermal conductivity in Cu3SbSe4 via all-scale phonon scattering by co-constructing multiscale heterostructure and IIIB element doping

Wang, Baoying; Zheng, Shuqi; Chen, Y.; Wang, Q.; Li, Z.; Wu, Yue; Li, J.; Mu, Yongguang; Xu, Shuo; Liang, Jiwei

doi:10.1016/j.mtener.2020.100620

Cited by 11 publications

(11 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The maximum ZT ave of the Ag and Ge cosubstituted samples is 0.45 for Cu 2.7 Ag 0.3 Sb 0.94 Ge 0.06 Se 4 . Our results exceed ZT ave of 0.36 for Ag and Sn codoped Cu 3 SbSe 4 , as reported by Xie et al ,,− …”

Section: Resultssupporting

confidence: 63%

High Thermoelectric Performance of Cu₃SbSe₄ Obtained by Synergistic Modulation of Power Factor and Thermal Conductivity

Ming

Chen

et al. 2022

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

In this work, Cu 3−y Ag y Sb 1−x Ge x Se 4 (x = 0, 0.04, 0.06, 0.08, 0.10, 0.12; y = 0, 0.1, 0.2, 0.3, 0.4) is fabricated using a high-temperature melting process, and the thermoelectric properties are investigated in the temperature range of 300−700 K. As a result, a remarkable improvement in thermoelectric performance of Cu-based ternary thermoelectric materials is achieved here. Ge doping increases the carrier concentration leading to a decrease in electrical resistivity; Ag alloying can reduce thermal conductivity significantly and enhance the power factor. Consequently, a maximum figure of merit, 0.95, is obtained for Cu 2.7 Ag 0.3 Sb 0.94 Ge 0.06 Se 4 and Cu 2.6 Ag 0.4 Sb 0.94 Ge 0.06 Se 4 at 700 K, which is higher than most reported Cu 3 SbSe 4 -based systems.

show abstract

Section: Resultssupporting

confidence: 63%

High Thermoelectric Performance of Cu₃SbSe₄ Obtained by Synergistic Modulation of Power Factor and Thermal Conductivity

Ming

Chen

et al. 2022

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

show abstract

“…The independence of κ L from other parameters suggests that increasing phonon scattering can be a promising strategy to improve thermoelectric performance by decoupling the correlated parameters. To enhance phonon scattering, considerable effort has been dedicated to the creation of structural defects such as heterodoping, [6][7][8][9] inclusion of a secondary phase, [10][11][12][13][14][15] dislocations, [16,17] and heterointerfaces. [7,[18][19][20][21] However, the creation of structural defects using heterogeneous elements or deviation from stoichiometry generally induces a change in electronic carrier concentration.…”

Section: Thermoelectric Technology Which Has Been Receiving Attention...mentioning

confidence: 99%

Selective Dissolution‐Derived Nanoporous Design of Impurity‐Free Bi₂Te₃ Alloys with High Thermoelectric Performance

Lee

Jung

Park

et al. 2023

Small

View full text Add to dashboard Cite

show abstract

“…Thermoelectric materials and devices have attracted much interest because they provide eco-friendly and economical energy-conversion [1,2]. Thermoelectric materials can be employed in energy-harvesting technologies to directly convert waste heat into electricity [3].…”

Section: Introductionmentioning

confidence: 99%

“…Thermoelectric materials can be employed in energy-harvesting technologies to directly convert waste heat into electricity [3]. The thermoelectric energy-conversion efficiency (η) is defined as (1) where T H is the temperature of the hot junction, T C is the temperature of the cold junction, and T M is the average of T H and T C . In Eq.…”

Section: Introductionmentioning

confidence: 99%

Solid-State Synthesis and Thermoelectric Performance of Cu3Sb1−yBIII ySe4 (BIII = Al, In) Permingeatites

Kim¹,

Kim²

2023

Korean J. Met. Mater.

View full text Add to dashboard Cite

Permingeatite (Cu3SbSe4) is a promising thermoelectric material with narrow bandgap energy and large carrier effective mass. However, doping is required to improve its electrical conductivity and thermoelectric properties. In this study, Cu3Sb1−y(Al/In)ySe4 doped with BIII-group elements (Al or In) at the Sb sites was synthesized using mechanical alloying followed by sintering through hot pressing. The resulting Cu3Sb1−y(Al/In)ySe4 contained a single phase of permingeatite with a tetragonal structure and therefore achieved a high relative density of 97.5–99.2%. The substitution of Al/In at the Sb sites produced lattice constants of a = 0.5652–0.5654 nm and c = 1.1249–1.1254 nm. As the Al/In doping content increased, the carrier (hole) concentration increased, reducing the Seebeck coefficient and increasing the electrical and thermal conductivities. Substituting Al3+ or In3+ at the Sb5+ site can generate additional carriers, resulting in a high electrical conductivity of (1.4–1.1) × 104 Sm−1 at 323–623 K for Cu3Sb0.92In0.08Se4. Cu3Sb0.96Al0.04Se4 exhibited a maximum power factor of 0.51 mWm−1K−2 at 623 K and a minimum thermal conductivity of 0.74 Wm−1K−1, resulting in a maximum dimensionless figure of merit, ZT, of 0.42 at 623 K. Cu3Sb0.96In0.04Se4 obtains a ZT of 0.47 at 623 K, indicating a high power factor of 0.65 mWm−1K−2 at 623 K and low thermal conductivity of 0.84 Wm−1K−1 at 523 K.

show abstract

Realizing ultralow thermal conductivity in Cu3SbSe4 via all-scale phonon scattering by co-constructing multiscale heterostructure and IIIB element doping

Cited by 11 publications

References 41 publications

High Thermoelectric Performance of Cu₃SbSe₄ Obtained by Synergistic Modulation of Power Factor and Thermal Conductivity

High Thermoelectric Performance of Cu₃SbSe₄ Obtained by Synergistic Modulation of Power Factor and Thermal Conductivity

Selective Dissolution‐Derived Nanoporous Design of Impurity‐Free Bi₂Te₃ Alloys with High Thermoelectric Performance

Solid-State Synthesis and Thermoelectric Performance of Cu3Sb1−yBIII ySe4 (BIII = Al, In) Permingeatites

Contact Info

Product

Resources

About

Realizing ultralow thermal conductivity in Cu3SbSe4 via all-scale phonon scattering by co-constructing multiscale heterostructure and IIIB element doping

Cited by 11 publications

References 41 publications

High Thermoelectric Performance of Cu3SbSe4 Obtained by Synergistic Modulation of Power Factor and Thermal Conductivity

High Thermoelectric Performance of Cu3SbSe4 Obtained by Synergistic Modulation of Power Factor and Thermal Conductivity

Selective Dissolution‐Derived Nanoporous Design of Impurity‐Free Bi2Te3 Alloys with High Thermoelectric Performance

Solid-State Synthesis and Thermoelectric Performance of Cu3Sb1−yBIII ySe4 (BIII = Al, In) Permingeatites

Contact Info

Product

Resources

About

High Thermoelectric Performance of Cu₃SbSe₄ Obtained by Synergistic Modulation of Power Factor and Thermal Conductivity

High Thermoelectric Performance of Cu₃SbSe₄ Obtained by Synergistic Modulation of Power Factor and Thermal Conductivity

Selective Dissolution‐Derived Nanoporous Design of Impurity‐Free Bi₂Te₃ Alloys with High Thermoelectric Performance