首页|Strategies to advance thermoelectric performance of PbSe and PbS materials

Strategies to advance thermoelectric performance of PbSe and PbS materials

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Thermoelectric materials possess the unique capability to convert thermal energy into electric energy and vice versa,making them promising for waste heat recovery and efficient cooling systems.Currently,exten-sively investigated thermoelectric materials such as Bi2Te3,PbTe and GeTe exhibit superior thermoelectric properties at room temperature and medium temperature regions.However,the broad application of these thermoelectric materials has been impeded by the high cost and restricted accessibility of Te and Ge in the earth's crust.Over the past few years,researchers have shown increasing interest in PbSe-and PbS-based materials,primarily attributed to their abundant elemental supply and relatively low costs.The assessment of research progress and a comprehensive overview of optimization strategies in time can signifi-cantly contribute to further improving the thermoelectric performance.These strategies include optimizing carrier concentration(aliovalent doping,dynamic doping and defect state),enhancing density-of-state effective mass(band convergence,band flattening and energy filtering effect),optimizing carrier mobility(band sharpening and band alignment)and reducing lattice thermal conductivity(all-scale hierarchical defect structures designing).This systematic summary and analysis provide novel insights and perspectives for the development of thermoelectric materials.

PbSe and PbS thermoelectric materialsCarrier concentrationDensity-of-state effective massCarrier mobilityLattice thermal conductivity

Zheng-Hao Hou、Xin Qian、Qiu-Juan Cui、Shu-Fang Wang、Li-Dong Zhao

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Shijiazhuang Key Laboratory of Low Carbon Energy Materials,College of Chemical Engineering,Shijiazhuang University,Shijiazhuang 050035,China

Hebei Key Lab of Optic-Electronic Information and Materials,College of Physics Science and Technology,Hebei University,Baoding 071002,China

School of Materials Science and Engineering, Beihang University, Beijing 100191, China

Doctoral Research Startup Funding of Shijiazhuang UniversityNational Natural Science Foundation of ChinaHebei Province Introduced Overseas Talents Funding ProjectCollege Students Innovation and Entrepreneurship Training Program of Shijiazhuang University

22BS00652102234C20210313scxm063

2024

10.1007/s12598-024-02774-x

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(9)
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