Dynamics of Molecule-Surface Interactions on Metal Oxides

Abstract

The interactions of vibrationally excited HCI(v =2) with MgO(100) surfaces have been examined in detail, with scattered HCI(v =2) detected state selectively by resonance enhanced multiphoton ionization (REMPI). Simulations using a random walk model and 'best estimates' for activation energies for desorption and hopping suggest that deactivation probably occurs at steps. In parallel, a new apparatus has been designed and built for a next generation of studies of molecular interactions on insulating oxide surfaces. Specifically, FTIR will be used to determine geometries and adsorption, and TPD, REMPI and other laser-based spectroscopies will be used to interrogate interactions of molecules and radicals with the surface and with other adsorbates.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2000
Accession Number
ADA392086

Entities

People

  • Curt Wittig
  • Hanna Reisler

Organizations

  • University of Southern California

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Adsorbates
  • Chemistry
  • Crystal Holders
  • Demographic Cohorts
  • Desorption
  • Energy
  • Energy Transfer
  • Frequency
  • Geometry
  • Heat Of Activation
  • Inelastic Scattering
  • Measurement
  • Molecules
  • Probability
  • Random Walk
  • Scattering
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy
  • Microelectronics