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Issue 10, 2013
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Texturation boosts the thermoelectric performance of BiCuSeO oxyselenides

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Abstract

We present a high ZT ∼ 1.4 in textured Bi0.875Ba0.125CuSeO obtained by a hot-forging process. The carrier mobility along the direction perpendicular to the pressing direction was significantly increased, resulting in increase in the electrical conductivity and maximization of the power factor at 923 K from 6.3 μW cm−1 K−2 for the sample before hot-forging to 8.1 μW cm−1 K−2 after the hot-forging process. Therefore, the maximum ZT was significantly increased from ∼1.1 to 1.4 through texturing for Bi0.875Ba0.125CuSeO, which is the highest ZT ever reported among oxygen containing materials.

Graphical abstract: Texturation boosts the thermoelectric performance of BiCuSeO oxyselenides

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Publication details

The article was received on 31 May 2013, accepted on 23 Jul 2013 and first published on 24 Jul 2013


Article type: Communication
DOI: 10.1039/C3EE41859F
Citation: Energy Environ. Sci., 2013,6, 2916-2920
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    Texturation boosts the thermoelectric performance of BiCuSeO oxyselenides

    J. Sui, J. Li, J. He, Y. Pei, D. Berardan, H. Wu, N. Dragoe, W. Cai and L. Zhao, Energy Environ. Sci., 2013, 6, 2916
    DOI: 10.1039/C3EE41859F

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