Electron Stimulated Desorption-Ion Angular Distribution (ESDIAD): A method for Imaging Chemical Bond Directions and Thermal Disorder in Adsorbed Species

Abstract

The measurement of the molecular properties of adsorbed species on single crystal surfaces forms one of the major goals of surface science research. A number of measurement techniques permit the characterization of chemical bonds at surfaces using different physical principles. The technique considered here involves the electronic excitation of the bond causing its rupture- the measurement of the ejection angle of the fragment species produced may be used to estimate the azimuthal and polar orientation of the bond being broken. In addition, certain aspects of the dynamical behavior of the adsorbed species may also be observed from the temperature dependence of the desorbing particles' angular distribution.

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Document Details

Document Type
Technical Report
Publication Date
Aug 20, 1993
Accession Number
ADA268888

Entities

People

  • John Yates

Organizations

  • University of Pittsburgh

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Bonds
  • Chemistry
  • Crystal Structure
  • Crystallography
  • Data Acquisition
  • Desorption
  • Detectors
  • Digital Data
  • Electronic Mail
  • Engineering
  • Ground State
  • Materials
  • Materials Science
  • Orientation (Direction)
  • Potential Energy
  • Probability
  • Probability Distributions

Fields of Study

  • Physics

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Molecular Photonics/Laser Physics
  • Quantum Chemistry

Technology Areas

  • Microelectronics