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Mixed conductors

The bridge to redox switches

The chain-forming tendency of chalcogens like tellurium can be used as an efficient internal redox system capable of switching electronic conduction from n-type to p-type through small temperature changes.

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Figure 1: Reversible redox switching in silver tellurides.
Figure 2: Phase transformations in non-stoichiometric silver chalcogenides.

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Janek, J. The bridge to redox switches. Nature Mater 8, 88–89 (2009). https://doi.org/10.1038/nmat2364

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