Enhanced figure of merit for famatinite Cu3SbSe4 via band structure tuning and hierarchical architecture

Zhao, Lijun; Ye, Haolin; Wu, Xinmeng; Yang, Jian; Yu, Lihua; Shi, Zhongqi; Hussain, Shahid; Qiao, Guanjun; Xu, Junhua; Ge, Bangzhi; Wang, Li; Zhou, Chongjian

doi:10.1016/j.jmat.2023.09.005

Journal of Materiomics

2023

DOI: 10.1016/j.jmat.2023.09.005

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Enhanced figure of merit for famatinite Cu3SbSe4 via band structure tuning and hierarchical architecture

Lijun Zhao,

Haolin Ye,

Xinmeng Wu

et al.

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2024

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Cited by 4 publications

References 66 publications

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N‐Type CuIn₅Se₈‐Based Thermoelectric Materials with All‐Scale Hierarchical Architectures

Yuan,

Deng,

Qiu

et al. 2024

Adv Funct Materials

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Copper (Cu)‐based thermoelectric (TE) materials have attracted great attention from both scientific and industrial societies, but for a long time, their real applications are greatly limited by the lack of high‐performance n‐type Cu‐based TE materials. Most recently, the novel n‐type Cu‐based TE material, CuIn5Se8, has been discovered to show a record‐high TE figure‐of‐merit (zT) to match the state‐of‐the‐art p‐type Cu‐based TE materials. However, the physical origin of such high zT is still unclear due to its complex phase compositions and crystal structures. In this work, it is revealed that the excellent TE performance is mainly contributed by the intrinsically ultralow lattice thermal conductivity originating from the unique all‐scale hierarchical architecture. It covers the ranges from atomic‐scale cation disorder in the tetragonal CuIn5Se8 phase and nanoscale diversified stacking units and stacking sequences in the hexagonal CuIn5Se8 phase, to mesoscale grain boundaries between the tetragonal phase and hexagonal phase. Doping Br at the Se‐sites can largely tune the electrical transports of CuIn5Se8 while maintaining the ultralow lattice thermal conductivity, leading to high zT reaching the optimal value predicted by the single parabolic model. This work will guide the investigation of n‐type Cu‐based TE materials in the future.

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N‐Type CuIn₅Se₈‐Based Thermoelectric Materials with All‐Scale Hierarchical Architectures

Yuan,

Deng,

Qiu

et al. 2024

Adv Funct Materials

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Dual-optimization of transport properties enabled by high-pressure treatments for CuInTe2 thermoelectric materials

Wang,

Zhang,

et al. 2024

Chemical Engineering Journal

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Stabilization of Superionic Copper Selenide Based Thermoelectric Materials

Yu,

Hu,

Zhuang

et al. 2024

Acc. Mater. Res.

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Enhanced figure of merit for famatinite Cu3SbSe4 via band structure tuning and hierarchical architecture

Cited by 4 publications

References 66 publications

N‐Type CuIn₅Se₈‐Based Thermoelectric Materials with All‐Scale Hierarchical Architectures

N‐Type CuIn₅Se₈‐Based Thermoelectric Materials with All‐Scale Hierarchical Architectures

Dual-optimization of transport properties enabled by high-pressure treatments for CuInTe2 thermoelectric materials

Stabilization of Superionic Copper Selenide Based Thermoelectric Materials

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Enhanced figure of merit for famatinite Cu3SbSe4 via band structure tuning and hierarchical architecture

Cited by 4 publications

References 66 publications

N‐Type CuIn5Se8‐Based Thermoelectric Materials with All‐Scale Hierarchical Architectures

N‐Type CuIn5Se8‐Based Thermoelectric Materials with All‐Scale Hierarchical Architectures

Dual-optimization of transport properties enabled by high-pressure treatments for CuInTe2 thermoelectric materials

Stabilization of Superionic Copper Selenide Based Thermoelectric Materials

Contact Info

Product

Resources

About

N‐Type CuIn₅Se₈‐Based Thermoelectric Materials with All‐Scale Hierarchical Architectures

N‐Type CuIn₅Se₈‐Based Thermoelectric Materials with All‐Scale Hierarchical Architectures