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Issue 43, 2015
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High thermoelectric performance of Nb-doped SrTiO3 bulk materials with different doping levels

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Abstract

Nb-doped SrTiO3 bulk materials with high quality are fabricated using a facile process. The doping level in SrTiO3 is controlled in a doping range of 0–20 mol%. Thermoelectric response including electrical conductivity σ, Seebeck coefficient S, and thermal conductivity k has been investigated in a high-temperature regime above 300 K. The ZT values show obvious doping-level dependences, in which the largest value as high as 0.37 at 1000 K and 0.40 at 1100 K is realized in the optimized doping range of 10–15 mol%. This is the first time such a remarkable thermoelectric performance was accomplished in electron-doped SrTiO3 ceramics.

Graphical abstract: High thermoelectric performance of Nb-doped SrTiO3 bulk materials with different doping levels

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Publication details

The article was received on 06 Jul 2015, accepted on 25 Sep 2015 and first published on 25 Sep 2015


Article type: Paper
DOI: 10.1039/C5TC02016F
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Citation: J. Mater. Chem. C, 2015,3, 11406-11411
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    High thermoelectric performance of Nb-doped SrTiO3 bulk materials with different doping levels

    B. Zhang, J. Wang, T. Zou, S. Zhang, X. Yaer, N. Ding, C. Liu, L. Miao, Y. Li and Y. Wu, J. Mater. Chem. C, 2015, 3, 11406
    DOI: 10.1039/C5TC02016F

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