Decoupling of Carrier‐Phonon Transport in PbSe with Dumbbell‐Like Occupied Cu+ by Referencing Hume–Rothery Rule

PbSe is considered a candidate for Te‐free thermoelectric materials with the same crystal structure and similar band structure as PbTe. Cu is predicted to introduce impurity energy levels near the valence band of PbSe and increase the Seebeck coefficient. However, the low solid solubility of Cu grea...

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Bibliographic Details
Published in:Advanced functional materials 2025-12, Vol.35 (51), p.n/a
Main Authors: Chen, Zixuan, Cui, Hong‐Hua, Wu, Ming, Guo, Weiping, Zheng, Yunpeng, Ming, Hongwei, Luo, Zhong‐Zhen, Zou, Zhigang
Format: Article
Language:English
Subjects:
Convergence
Copper
Copper selenides
Crystal structure
Decoupling
Energy levels
Hume–Rothery rule
Lead selenides
Lead tellurides
Phonons
Power factor
p‐type PbSe
Seebeck effect
softening phonon modes
Solid solubility
Solid solutions
Thermal conductivity
thermoelectric
Thermoelectric materials
three‐valence‐band convergence
Valence band
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