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Are Solid Solutions Better in FeNbSb‐Based Thermoelectrics?
Author(s) -
Fu Chenguang,
Liu Yintu,
Zhao Xinbing,
Zhu Tiejun
Publication year - 2016
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201600394
Subject(s) - thermoelectric effect , thermoelectric materials , materials science , solid solution , solid state , nanotechnology , engineering physics , process engineering , thermodynamics , metallurgy , engineering , physics
Forming solid solutions, due to its universal applicability, has been the most effective strategy for improving the performance of a wide variety of thermoelectric materials. Taking p‐type FeNb 1− x V x Sb solid solutions as an example, here it is shown that the formation of solid solutions cannot always improve the thermoelectric performance. The peak zT and thermoelectric quality factor of p‐type FeNb 1− x V x Sb decrease with increasing V content, remarkably different from other thermoelectric systems. The present results demonstrate that comprehensive understanding of the multiple effects of forming solid solutions is important for developing high‐performance thermoelectrics.