摘要
The significant atomic disorder induced by entropy engineering can effectively suppress lattice thermal conductivity and improve thermoelectric performance.The variety of compositions of Zintl phases offers a wide range of possibilities for entropy engineering.Herein we successfully prepared a five-component solid solution(CaZn_(2)Sb_(2))_(0.5)(YbMg_(2)Sb_(2))_(0.5) with a configurational entropy of~1.40R,whereR is the gas constant.As a result,the room-temperature lattice thermal conductivity was only~0.68 W·m^(-1)·K^(-1),which is lower than that of all AM_(2)Sb_(2) Zintl phases.
出处
《Rare Metals》
SCIE
EI
CAS
CSCD
2022年第9期2998-3004,共7页
稀有金属（英文版）
基金
financially supported by the National Natural Science Foundation of China(Nos.52172194,51971081 and 52101248)
the Natural Science Foundation for Distinguished Young Scholars of Guangdong Province of China(No.2020B1515020023)
Shenzhen Science and Technology Program(No.KQTD20200820113045081)
the Key Project of Shenzhen Fundamental Research Projects(Nos.JCYJ20200109113418655 and JCYJ20210324132808020)
the State Key Lab of Advanced Welding and Joining,Harbin Institute of Technology。
