Abstract
Over the past 20 years, sodium cobaltate (NaxCoO2) has been considered a front-runner for medium and high-temperature thermoelectric applications. As common with all thermoelectric materials, tens of different dopants have so far been examined to improve the thermoelectric efficiency of sodium cobaltate. However, progress has remained incremental. In this chapter, we review the experimental and theoretical reports on doped sodium cobaltate to discern how a dopant’s incorporation site in the sodium cobaltate’s complex lattice can improve the thermoelectric performance. We conclude that density functional calculations can offer valuable complementary atomic-scale insight into dopants’ behaviour. As a result, density functional simulations can guide the experimental efforts to the best possible dopants. Our conclusions can be generalised to other types of thermoelectric materials.
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Assadi, M.H.N. (2021). Theoretical and Experimental Surveys of Doped Thermoelectric NaxCoO2. In: Roca, A.G., et al. Surfaces and Interfaces of Metal Oxide Thin Films, Multilayers, Nanoparticles and Nano-composites. Springer, Cham. https://doi.org/10.1007/978-3-030-74073-3_13
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