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The ugly duckling

Single crystals of tin selenide have been shown to display, along one crystallographic direction of their high-temperature state, the highest thermoelectric efficiency of any bulk material. See Letter p.373

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Figure 1: Working principle of a thermoelectric generator.



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Correspondence to Joseph P. Heremans.

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Heremans, J. The ugly duckling. Nature 508, 327–328 (2014).

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