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Research Article

Highly Textured N-Type SnSe Polycrystals with Enhanced Thermoelectric Performance

Figure 4

The temperature dependence of (a) thermal conductivity (unfilled and filled star symbols present the reported data along the in-plane and out-of-plane directions in the n-type SnSe crystal [20], respectively; the inset shows lattice thermal conductivity) and (b) ZT values for the polycrystalline SnSe samples before and after texturing process; unfilled symbols and filled symbols present the properties measured along the directions that are perpendicular and parallel to the SPS pressure, respectively. The inset schematic figures show the measurement directions for electrical and thermal transport properties.

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