Ni doping and rational annealing boost thermoelectric performance of nanostructured double perovskite Pr1.8Sr0.2CoFeO6

Hao Wu,Xiao-Lei Shi,Wei-Di Liu,Han Gao,De-Zhuang Wang,Liang-Cao Yin,Qingfeng Liu,Zhi-Gang Chen

Applied Materials Today（2022）

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摘要

•Improved ZT of 0.085 at 573 K is achieved in Ni-doped Pr1.8Sr0.2CoFeO6.•Rational annealing enables dense polycrystalline bulk without pores.•Ni doping optimizes the hole carrier concentration to achieve high power factor.•Ni doping introduces multiscale crystal/lattice imperfections to suppress κl.

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关键词

Thermoelectric,Double perovskite,Doping,Nanostructure,Modelling

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