Enhanced thermoelectric performance of InSb through deep level impurity donor state induced by La doping

De, Zhang; Wu, Hong; Zhou, Zhan; Zheng, Sikang; Zhang, Bin; Zhou, Yun; Lu, Xu; Zhou, Xiaoyuan

doi:10.1016/j.mtphys.2023.101020

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2024

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“…In this regard, metal antimonides, such as Co 4 Sb 12 , 17,18 Zn 4 Sb 3 , 19 ZnSb, 20,21 and Mg 3 Sb 2 , 22 have received much attention due to their unique crystal structure, presence of eco-friendly elements, and superior thermoelectric performance in a wide range of temperatures. Among them, ZnSb, a p-type semiconducting intermetallic compound, has been widely considered as a promising thermoelectric material in the temperature range of 370–720 K, 23 and also due to availability of its counter n-type materials, such as InSb 0.95 , 24 InSb 0.98 Bi 0.02 , 25 and La–InSb 26 showing the peak zT in the same temperature range. ZnSb crystallizes in the orthorhombic structure with a space group of Pbca , forming a structure similar to CdSb/GaSb.…”

Section: Introductionmentioning

confidence: 99%