Synergetic tuning of electrical/thermal transport via dual‐doping in Bi 0.96− x   M g  x  Pb 0.06 CuSeO | Zendy

Liu Yong | Zendy; Zhu Yingcai | Zendy; Liu WeiShu | Zendy; Marcelli Augusto | Zendy; Xu Wei | Zendy

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Synergetic tuning of electrical/thermal transport via dual‐doping in Bi 0.96− x M g x Pb 0.06 CuSeO

Author(s) -

Liu Yong,

Zhu Yingcai,

Liu WeiShu,

Marcelli Augusto,

Xu Wei

Publication year - 2019

Publication title -

journal of the american ceramic society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.9

H-Index - 196

eISSN - 1551-2916

pISSN - 0002-7820

DOI - 10.1111/jace.16200

Subject(s) - electrical resistivity and conductivity , thermoelectric effect , seebeck coefficient , thermal conductivity , doping , materials science , analytical chemistry (journal) , thermoelectric materials , atom (system on chip) , thermal , chemistry , thermodynamics , physics , optoelectronics , composite material , environmental chemistry , quantum mechanics , computer science , embedded system

The layered oxyselenides BiCuSeO was recently discovered as potential thermoelectric. Our result reveals that the substitute for atom Bi 3+ by Pb 2+ & Mg 2+ in (Bi 2 O 2 ) 2− play an important role in electrical transport properties. The maximum electrical conductivity obtained is 460 Scm −1 for Bi 0.84 Mg 0.10 Pb 0.06 CuSeO at RT , highly above the 15 Sm −1 for BiCuSeO. In synergy with low thermal conductivity (0.6‐0.4 Wm −1 K −1 ) and large thermopower (300‐500 μVK −1 ), the highest ZT is achieved about 0.80 at 873 K for Bi 0.88 Mg 0.06 Pb 0.06 CuSeO.

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