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December 8, 2025SmallOpen Access

Synergistic Band and Defect Engineering Realize High‐Efficiency CuAgSe‐Alloyed Lead‐Free GeTe Thermoelectrics

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Authors

FFFan FengJZJianglong ZhuXTXiaobo Tan

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Overview

Alloying strategy improves thermoelectric performance in GeTe, highlighting efficient phonon and electrical transport.

Key Points

  • Peak zT reaches 2.02 at 603 K, enhancing the thermoelectric performance significantly.
  • Seven-pair device achieves conversion efficiency of 6.02% at a temperature difference of 382 K.
  • Synergistic approach incorporates both defect modulation and band engineering for optimal performance.
  • Enhancements in phonon scattering and thermal conductivity suppression are crucial for performance gains.

Cite This Study

Feng et al. (2025) studied this question.

synapsesocial.com/papers/69401f062d562116f28f9fa7https://doi.org/10.1002/smll.202514392
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