Hydrogen exchange reaction on hydrogen-terminated (100) Si surface during storage in water

Michio Niwano, Taka Aki Miura, Nobuo Miyamoto

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The chemical state of hydrogen-terminated (100) Si surface during storage in water (H2O) and heavy water (D2O), has been investigated in situ and in real-time using infrared spectroscopy in the multiple internal reflection geometry. We have examined how infrared absorption spectra in the Si-H stretch vibration region change while the Si surface is immersed into H2O and D2O. We demonstrate that hydrogen exchange reaction takes place on the H-terminated Si surface during storage in water; that is, the hydrogen atom in the surface Si-H bond is replaced with a hydrogen atom of the water molecule. We propose that the hydrogen exchange reaction proceeds through the formation of a negatively charged state of the surface Si atom and a hydronium ion, H3O+: Si-H + H2O → H3O+ + Si-.

Original languageEnglish
Pages (from-to)659-661
Number of pages3
JournalJournal of the Electrochemical Society
Volume145
Issue number2
DOIs
Publication statusPublished - 1998 Feb

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Hydrogen exchange reaction on hydrogen-terminated (100) Si surface during storage in water'. Together they form a unique fingerprint.

Cite this