Releasing cation diffusion in self-limited nanocrystalline defective ceria thin films

Vincenzo Esposito, D. W. Ni, Fabrizio Gualandris, Nini Pryds

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Acceptor-doped nanocrystalline cerium oxide thin films are mechanically constrained nano-domains, with film/substrate interfacial strain and chemical doping deadlock mass diffusion. In contrast, in this paper we show that chemical elements result in highly unstable thin films under chemical reduction, with unexpected diffusion-driven effects such as fast migration of grain boundaries, porosity nucleation, and interdiffusion at low temperatures.
Original languageEnglish
JournalR S C Advances
Issue number23
Pages (from-to)13784-13788
Publication statusPublished - 2017

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This article is Open Access and licensed under a Creative Commons Attribution 3.0 Unported Licence.

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