Epilayer control of photodeposited materials during UV photocatalysis

R. Takahashi, M. Katayama, Dahl, J. K. Grepstad, Y. Matsumoto, T. Tybell

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Epilayer control of photoassisted oxidation and reduction on the ferroelectric PbTiO3 polar surface was investigated. Photo-oxidation of a AgNO3 electrolyte resulting in formation of Ag7 NO11 particles was observed on the PbTiO3 /Nb: SrTiO3 film surface; whereas PbTiO3 / SrRuO3 / SrTiO3 leads to AgNO3 reduction under UV illumination. The oxidation reaction resulting in the formation of Ag7 NO11 is explained in terms of a rectifying interface between PbTiO3 and Nb: SrTiO3, controlling the charge transport during UV photocatalysis.

Original languageEnglish
Article number232901
JournalApplied Physics Letters
Volume94
Issue number23
DOIs
Publication statusPublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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