PlumX Metrics
Embed PlumX Metrics

Photo-Induced Morphology Changes at the RuO(110)/TiO(110) Surface: A Scanning Tunneling Microscopy Study

Topics in Catalysis, ISSN: 1572-9028, Vol: 60, Issue: 6-7, Page: 533-541
2017
  • 4
    Citations
  • 0
    Usage
  • 16
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    4
    • Citation Indexes
      4
  • Captures
    16

Article Description

Illumination by ultraviolet light and subsequent annealing to 600–700 K lead to characteristic morphological changes of a fully covering four to five monolayer thick RuO(110) film on TiO(110) and even to a decomposition of RuO(110) islands on TiO(110). These photo-induced degradation processes in a water atmosphere of 10 mbar and without water were studied with scanning tunneling microscopy and supplemented by X-ray photoelectron spectroscopy. The photo-assisted process is considered to be mediated by the underlying semiconducting TiO(110) substrate through photo-generated hot electron–hole pairs. Due to energy band bending formed at the RuO(110)/TiO(110) heterojunction (Schottky barrier) the holes are selectively drawn towards the interface, where these can conduct oxidation reactions leading to modifications of the RuO(110) surface and to the observed morphological degradation in the subsequent annealing step to 600 or 700 K.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know