Surface hydroxyl content controls the thermolysis stoichiometry of a surface bound organometallic complex

Gang Lu, Kathleen L. Purvis, Jeffrey Schwartz, Steven Bernasek

Research output: Contribution to journalArticlepeer-review

Abstract

The thermal decomposition profile for the product of organometallic chemical vapor deposition (OMCVD) of tetra(tert-butoxy)zirconium on an oxide-modified aluminum surface depends on the initial surface hydroxyl group coverage. Controlled thermolysis of the tri(tert-butoxy)zirconium species bound to the low hydroxyl group content surface shows nearly complete degradation to ZrO2 at T > 350 K. In contrast, thermolysis of the tri(tert-butoxy)zirconium species bound to the hydroxyl group-saturated surface gives a thermally more stable (to >450 K) di(tert-butoxy)zirconium surface complex. Deposition and thermal evolution reactions were followed by both reflection-absorption infrared and X-ray photoelectron spectroscopies.

Original languageEnglish (US)
Pages (from-to)X-5792
JournalLangmuir
Volume13
Issue number22
StatePublished - Oct 29 1997

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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