Abstract Polycrystalline Ni0.05Mo3Sb5.4Te1.6 thermoelectric (TE) material samples were mixed with NiSb nanoparticles (60 – 80 nm) in 0, 0.034, 0.074 and 0.16 volume fractions, then hot-pressed and their TE transport properties were characterized. There was a gradual increase in electrical conductivity with the addition of NiSb nanoparticles. The electrical conductivity (σ) of the 0.16 sample was increased by 163% compared to the NiSb-free sample. Except for the 0.16 sample, all samples showed alloy scattering (σ ∼ T–0.5). With an increase in NiSb content, the Fermi energy appeared to be reduced, getting closer to the valence band edge. For all samples, the variation in lattice thermal conductivity with temperature (κl ∼ T–0.27) was very similar, indicating that the mode of phonon scattering was the same in all samples.

中文翻译：

---

具有分散的 NiSb 纳米粒子的锑化钼 - 碲化物的传输特性

摘要 多晶 Ni0.05Mo3Sb5.4Te1.6 热电 (TE) 材料样品与 NiSb 纳米粒子 (60 – 80 nm) 以 0、0.034、0.074 和 0.16 的体积分数混合，然后进行热压，并表征了它们的 TE 传输特性。随着 NiSb 纳米颗粒的加入，电导率逐渐增加。与不含 NiSb 的样品相比，0.16 样品的电导率 (σ) 提高了 163%。除 0.16 样品外，所有样品均显示合金散射（σ ∼ T–0.5）。随着 NiSb 含量的增加，费米能量似乎降低，越来越接近价带边缘。对于所有样品，晶格热导率随温度的变化 (κl ∼ T–0.27) 非常相似，表明所有样品的声子散射模式相同。