首页|Simultaneously optimized thermoelectric and mechanical performance of p-type polycrystalline SnSe enabled by CNTs addition

Simultaneously optimized thermoelectric and mechanical performance of p-type polycrystalline SnSe enabled by CNTs addition

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  • NSTL
  • Elsevier
A series of SnSe/carbon nanotubes (SnSe/CNTs) composites, with homogeneous distribution of CNTs, were fabricated by combining solution synthesis with fast sintering. Enabled by CNTs addition, both the electrical conductivity and power factor are improved significantly; the lattice thermal conductivity is suppressed due to strengthened phonon scattering. As a result, a maximum zT of 0.90 is obtained in the SnSe/CNTs composite with 0.20 wt.% CNTs, - 90% higher than that of SnSe. In addition, the composite with 0.35 wt.% CNTs exhibits a dramatically increased compressive strength of 135 MPa, representing an - 81% increase. This work offers a composite design strategy for synergistically improving both thermoelectric and mechanical properties of polycrystalline SnSe.

ThermoelectricMechanical propertySnSeCarbon nanotubesSolution synthesis? totCARBON NANOTUBESRAMAN-SPECTRA

Liu, Xiaofang、Wang, Hengyang、Chen, Yao、Zhang, Bin、Zhang, Hong、Zheng, Sikang、Chen, Xianhua、Lu, Xu、Wang, Guoyu、Zhou, Xiaoyuan、Han, Guang

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Chongqing Univ

Chinese Acad Sci

2022

10.1016/j.scriptamat.2022.114846

Scripta materialia

Scripta materialia

EISCI
ISSN：1359-6462
年,卷(期)：2022.218
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