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Core-level shifts on the H2O exposed Ge(100)2×1 surface

Författare:
Publiceringsår: 1989
Språk: Engelska
Sidor: 2044-2048
Publikation/Tidskrift/Serie: Journal of Vacuum Science and Technology A
Volym: 7
Nummer: 3
Dokumenttyp: Artikel
Förlag: American Vacuum Society

Sammanfattning

Core-level spectroscopy and valence-band photoelectron spectroscopy were used to study the Ge(100)2×1 surface dosed with 0.5–100 L H2O at 160 K. It is determined that H2O adsorbs molecularly at 160 K and forms ice. The H2O molecules dissociate into H and OH radicals on the Ge(100)2×1 surface when the sample is heated to 300 K. A simple adsorption model that accounts for the calculated H and OH coverages is proposed.

Disputation

Nyckelord

  • Physics and Astronomy
  • MEDIUM TEMPERATURE
  • LOW TEMPERATURE
  • PHOTOELECTRON SPECTROSCOPY
  • CHEMISORPTION
  • ICE
  • WATER
  • SURFACE STRUCTURE
  • GERMANIUM
  • SURFACE REACTIONS
  • ELECTRON DIFFRACTION

Övriga

Published
Yes
  • Electromagnetic theory
  • ISSN: 0734-2101

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