Observatorio de I+D+i UPM

Descripción
The search for electrolyte materials with high oxygen conductivities is a key step toward reducing the operation temperature of fuel cells, which is currently above 700°C. We report a high lateral ionic conductivity, showing up to eight orders of magnitude enhancement near room temperature, in yttria-stabilized zirconia (YSZ)/strontium titanate epitaxial heterostructures. The enhancement of the conductivity is observed, along with a YSZ layer thickness–independent conductance, showing that it is an interface process. We propose that the atomic reconstruction at the interface between highly dissimilar structures (such as fluorite and perovskite) provides both a large number of carriers and a high-mobility plane, yielding colossal values of the ionic conductivity
Internacional	Si
JCR del ISI	Si
Título de la revista	SCIENCE
ISSN	0036-8075
Factor de impacto JCR	26,372
Información de impacto
Volumen	321
DOI	10.1136
Número de revista	5839
Desde la página	676
Hasta la página	680
Mes	ENERO
Ranking

Esta actividad pertenece a memorias de investigación

• Autor: Enrique Iborra Grau (UPM)

• Creador: Grupo de Investigación: Microsistemas y Materiales Electrónicos
• Departamento: Tecnología Electrónica