Journal of Inorganic Materials ›› 2021, Vol. 36 ›› Issue (4): 399-404.DOI: 10.15541/jim20200659

Special Issue: 能源材料论文精选(2021) 【虚拟专辑】热电材料(2020~2021) 【虚拟专辑】计算材料 【结构材料】高熵陶瓷 【能源环境】热电材料

• RESEARCH PAPER • Previous Articles     Next Articles

Designing High Entropy Structure in Thermoelectrics

CAI Jianfeng1(), WANG Hongxiang1,2, LIU Guoqiang1,2, JIANG Jun1,2()   

  1. 1. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2020-11-18 Revised:2020-12-10 Published:2021-04-20 Online:2020-12-10
  • Contact: JIANG Jun, professor. E-mail:
  • About author:CAI Jianfeng(1995-), male, Master candidate. E-mail:
  • Supported by:
    Ningbo Science and Technology Innovation 2025 Major Project (2019B10085)


With the fascinating properties observed in high entropy alloys, the idea of high entropy design has been applied to many material fields. Thermoelectric materials have some particular requirements for high entropy structure according to their transport characteristics. Here, we revealed that the high entropy structure for thermoelectrics required less lattice distortion, and the doping sites should have less influence on the Fermi surface. In the designed compound of Cu0.8Ag0.2Zn0.1Ga0.4Ge0.1In0.4Te2, the room-temperature thermal conductivity is reduced by 80% as compared to the matrix, and the maximum ZT is enhanced to 1.02. In SnTe, the solid solution of AgSbSe2 reduces the room-temperature thermal conductivity by 80%, reaching 1.3 W·m-1·K-1. This study shows that the high entropy structure following the proposed designing rules could be an important strategy for thermoelectrics.

Key words: high entropy alloys, thermoelectrics, Gibbs free energy, high entropy structure

CLC Number: