Oxide interfaces with enhanced ion conductivity

C. Leon, J. Santamaria, Bernard A. Boukamp

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The new field of nano-ionics is expected to yield large improvements in the performance of oxide-based energy generation and storage devices based on exploiting size effects in ion conducting materials. The search for novel materials with enhanced ionic conductivity for application in energy devices has uncovered an exciting new facet of oxide interfaces. With judicious choice of the constituent materials, oxide heterostructures can exhibit enhanced ion mobility compared to the bulk counterparts. Here we review recent experimental and theoretical progress on enhancement of oxide-ion conductivity arising in oxide ultrathin layers and at their interfaces, and describe the different scenarios, space-charge effects, epitaxial strain, and atomic reconstruction at the interface, proposed to account for the observed conductivity enhancement
Original languageUndefined
Pages (from-to)1056-1063
Number of pages9
JournalMRS bulletin
Publication statusPublished - 2013


  • IR-90070
  • METIS-299902

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