Condensed point defects enhance thermoelectric performance of rare-earth Lu-doped GeTe

Wan-Yu Lyu,Wei-Di Liu,Meng Li,Xiao-Lei Shi,Min Hong,Tianyi Cao,Kai Guo,Jun Luo,Jin Zou,Zhi-Gang Chen

Journal of Materials Science & Technology（2023）

引用 5|浏览15

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摘要

•Lu reduces lattice thermal conductivity by condensed point defect scattering.•Sb co-doping optimizes the carrier concentration to 1.77 × 1020 cm−3.•Enhanced figure of merit 1.75 was obtained of Ge0.9Lu0.02Sb0.08Te at 673 K.

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关键词

Thermoelectric,Rare-earth,Thermal conductivity,Carrier concentration

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