Nature Communications (Jun 2020)

Establishing the carrier scattering phase diagram for ZrNiSn-based half-Heusler thermoelectric materials

  • Qingyong Ren,
  • Chenguang Fu,
  • Qinyi Qiu,
  • Shengnan Dai,
  • Zheyuan Liu,
  • Takatsugu Masuda,
  • Shinichiro Asai,
  • Masato Hagihala,
  • Sanghyun Lee,
  • Shuki Torri,
  • Takashi Kamiyama,
  • Lunhua He,
  • Xin Tong,
  • Claudia Felser,
  • David J. Singh,
  • Tiejun Zhu,
  • Jiong Yang,
  • Jie Ma

DOI
https://doi.org/10.1038/s41467-020-16913-2
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 9

Abstract

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Chemical doping plays an important role in tuning carrier concentration of materials, but its influence on other aspects of electrical properties is less known. Here, the authors find that chemical doping brings strong screening effects to ionized impurities, grain boundary, and polar optical phonon scattering.