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

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

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 reductio...

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Veröffentlicht in:RSC advances 2017-01, Vol.7 (23), p.13784-13788
Hauptverfasser: Esposito, V, Ni, D. W, Sanna, S, Gualandris, F, Pryds, N
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container_issue 23
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container_title RSC advances
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creator Esposito, V
Ni, D. W
Sanna, S
Gualandris, F
Pryds, N
description 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. Acceptor-doped nanocrystalline cerium oxide thin films are mechanically constrained nano-domains, with film/substrate interfacial strain and chemical doping deadlock mass diffusion.
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title Releasing cation diffusion in self-limited nanocrystalline defective ceria thin films
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