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Article summary:

1. Thermoelectric technologies can generate electricity from waste heat, but their high cost and low conversion efficiency weaken their competitiveness.

2. Entropy engineering has been used as a novel strategy to optimize the electrical and thermal transport properties of TE materials by increasing element species and forming high-entropy materials with severe lattice distortion.

3. P-type PbSe still shows a much lower zT value than PbTe, but high-entropy engineering can promote thermoelectric performance in p-type chalcogenides like Pb0.2Sn0.2Ge0.2PbS0.2Se0.2 by improving both electrical conductivity and thermal conductivity reduction through lattice distortion and structural stabilization.

Article analysis:

作为一篇科学论文,该文章并没有明显的偏见或宣传内容。然而,它可能存在一些片面报道和缺失的考虑点。

首先,文章只关注了提高热电材料的zT值来提高其转换效率,但并未探讨其他可能的方法来提高热电性能。例如,可以通过优化热电模块设计、改进制冷剂循环等方式来提高整个热电系统的效率。

其次,文章只关注了p型PbSe材料的zT值相对较低,并将其与PbTe进行比较。然而,这种比较可能不够全面和公正,因为还有其他类型的热电材料可供选择,并且每种材料都有其自身的优缺点。

此外,在介绍“熵工程”作为一种新颖策略时,文章没有探讨该策略是否存在潜在风险或限制。例如,在增加元素种类以增加混合熵时,可能会导致材料结构不稳定或难以制备。

最后,在介绍各种优化策略时,文章没有提供足够的证据来支持所述主张。例如,在讨论如何减少载流子有效质量和散射时,并未说明这些措施如何确切地影响电导率。

总之,虽然该文章并未明显偏袒任何一方或宣传特定观点,但仍存在一些片面报道和缺失考虑点。