Interaction of Stern layer and domain structure on photochemistry of lead-zirconate-titanate.

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dc.contributor.authorJones, Paul M.
dc.contributor.authorDunn, Steve
dc.date.accessioned2009-02-27T16:24:27Z
dc.date.available2009-02-27T16:24:27Z
dc.date.issued2009-03
dc.description.abstractPerovskite ferroelectric materials such as PZT have long been known to have wideband semiconducting properties. It has also been found that they have interesting spatially controllable surface photochemical effects that are not seen in 'normal' semiconductors. This has led to their being studied as possible tools in areas such as metal salt reduction and oxidation for nanoparticle growth. This paper discusses the effects of incident photon energy on the reduction of Ag0 onto PZT(30/70) surfaces with particular emphasis on the part played by energy band bending and the Stern layer. It was found that for increasing photon energy between 4.4 and 5.0 eV both the [1 1 1] and the [1 0 0] orientations of PZT followed a similar trend in that the average Ag0 cluster cross-sectional area increased by a ratio of ca 1.6 to 1. This increase was put down to the higher energy photons exciting more electrons from deeper in the density of states for the material allowing a greater reduction rate of Ag+ at the surface.en_UK
dc.identifier.citationP M Jones and S Dunn, Interaction of Stern layer and domain structure on photochemistry of lead-zirconate-titanate. Journal of Physics D: Applied Physics. 2009, Volume 42, Number 6, 065408en_UK
dc.identifier.issn0022-3727
dc.identifier.urihttp://dx.doi.org/10.1088/0022-3727/42/6/065408
dc.identifier.urihttp://hdl.handle.net/1826/3227
dc.language.isoenen_UK
dc.publisherInstitute of Physicsen_UK
dc.titleInteraction of Stern layer and domain structure on photochemistry of lead-zirconate-titanate.en_UK
dc.typeArticleen_UK

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