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      Probing dynamics of surface structures using x-ray photoelectron spectroscopy

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      Author
      Sezen, H.
      Süzer, Şefik
      Date
      2012
      Source Title
      Journal of Spectroscopy and Dynamics
      Print ISSN
      2249-2704 (print)
       
      2249-2712 (online)
       
      Publisher
      Simplex Academic
      Volume
      2
      Issue
      3
      Pages
      1 - 9
      Language
      English
      Type
      Article
      Item Usage Stats
      102
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      Abstract
      By incorporating laser illumination, and/or by application of electrical square-wave pulses to the sample, X-ray photoelectron spectroscopy is utilized to probe the dynamics of the surface structures in the range of 10-3 to 105 Hz. Different experimental methodologies are introduced, and their applications to investigate certain dynamical properties of two compound semiconductors, CdS and GaN are given. It is shown that dynamics of charging/discharging and surface photovoltage formation and its dissipation, and entanglement of various processes can be investigated by following the voltage shifts recorded in a chemical specific fashion.
      Keywords
      Charging/Discharging Dynamics
      Surface photovoltage
      Photoconductivity
      XPS
      Permalink
      http://hdl.handle.net/11693/49507
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      • Department of Chemistry 622
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