Structure of the Si(011)-(16 × 2) surface and hydrogen desorption kinetics investigated using temperature-programmed desorption

H. Kim, N. Taylor, T. Spila, G. Glass, S. Y. Park, I. E. Greene, J. R. Abelson

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20 Citations (Scopus)

Abstract

D2 temperature-programmed desorption (TPD) was used to probe the structure of the Si(011)-(16 × 2) surface. Deuterium was adsorbed at 200°C to coverages θD ranging up to complete saturation (approximately 1.1 ML) and the sample heated at 5 Cs-1. TPD spectra exhibited three second-order desorption peaks labelled β2, β*1 and β1, centered at 430, 520 and 550°C. Of the proposed models for the Si(011)-(16 × 2) reconstruction, the present TPD results as a function of θD provide support for the adatom/dimer model with the β2 peak assigned to D2 desorption from the dihydride phase, while the β*1 and β1 peaks arise from adatom and surface-atom monohydride phases.

Original languageEnglish
Pages (from-to)L496-L500
JournalSurface Science
Volume380
Issue number2-3
DOIs
Publication statusPublished - 1997 May 15

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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