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High-performance thermoelectric oxides: processing approaches and composition d...
Kovalevsky, Andrei; Constantinescu, Gabriel; Lopes, Diogo; Zakharchuk, Kiryl V.; Rasekh, Shahed; Yaremchenko, Aleksey A.; Ferreira, Nuno M.; Xie, WenjieOxide materials represent a promising alternative to traditional thermoelectrics, by providing a possibility to operate at high temperatures, resulting in a higher Carnot efficiency. Although their conversion efficiency is considerably lower, their known structural and microstructural versatility can open new horizons for thermoelectric applications. This work reviews some representative cases of engineering th...
Exploring the strategies towards enhancing the thermoelectric performance in ox...
Kovalevsky, Andrei; Constantinescu, Gabriel; Lopes, Diogo; Ferreira, Nuno M.; Zakharchuk, Kiryl; Paulino, Tiago; Zúquete, Joana; Suarez, DianaOxide materials are currently considered a promising alternative to traditional thermoelectrics. Moderate charge carrier mobility stemming from strong covalent and ionic bonding, combined with relatively high thermal conductivity, represent known disadvantages of these materials for thermoelectric applications. However, oxides offer a possibility to operate at high temperatures, resulting in a higher Carnot eff...
Redox engineering of strontium titanate-based thermoelectrics
Kovalevsky, Andrei V.; Zakharchuk, Kiryl V.; Aguirre, Myriam H.; Xie, Wenjie; Patrício, Sonia G.; Ferreira, Nuno M.; Lopes, Diogo; Sergiienko, Sergii A.The development of thermoelectrics for high-temperature applications imposes several essential requirements on the material properties. In some energy-conversion scenarios, the cost and thermal stability requirements may dominate over efficiency issues, making abundant, high-temperature-stable and low-toxic oxides attractive alternative thermoelectric materials. As compared to “traditional” thermoelectrics, oxi...
Thermoelectric oxides: challenges and selected approaches for materials design
Kovalevsky, Andrei V.; Xie, Wenjie; Aguirre, Myriam H.; Ferreira, Nuno M.; Patrício, Sónia G.; Lopes, Diogo; Constantinescu, Gabriel; Costa, Florinda M.Sem resumo disponível.