Advanced Functional Materials

Cover image for Vol. 26 Issue 39

23_15i/2013Thin Films: On Proton Conductivity in Porous and Dense Yttria Stabilized Zirconia at Low Temperature (Adv. Funct. Mater. 15/2013)

On page 1957 Barbara Scherrer and co-workers report changes in electrical conductivity at low temperatures that occur when grain size, grain shape, and the porosity of nanoporous zirconiabased thin films are varied. The cover image shows a false-colored scanning transmission electron microscopy (STEM) image of a yttria stabilized zirconia (YSZ) thin film with a thickness of about 300 nm contacted with platinum. The bright areas within the YSZ thin film are pores, which conduct protons at temperatures below 400 °C.

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