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Surface and interface analysis of GaAs--oxyfluorides

Journal Article · · J. Vac. Sci. Technol., A; (United States)
DOI:https://doi.org/10.1116/1.572202· OSTI ID:5784954
AES, XPS, and SIMS analysis of the plasma grown oxyfluorides on GaAs are presented. These data indicate that the films are composed of three basic layers. Region 1 is a mixed As/sub 2/O/sub 3/, Ga/sub 2/O/sub 3/ glass with low concentrations of fluorine. In the second region, fluorine concentrations increase and a shoulder on the As-3d and Ga-3d peaks are observed. As/sub 2/O/sub 3/ and Ga/sub 2/O/sub 3/ are still the major constituents of the film. At the interface between the oxyfluoride glass and the substrate is a thin metallic As region. The difference between pure oxides and this oxyfluoride is the incorporation of fluorine in the films and lower concentrations of metallic As at the interface.
Research Organization:
SERI, Golden, Colorado 80401
DOE Contract Number:
AC02-77CH00178
OSTI ID:
5784954
Journal Information:
J. Vac. Sci. Technol., A; (United States), Journal Name: J. Vac. Sci. Technol., A; (United States) Vol. 1:2; ISSN JVTAD
Country of Publication:
United States
Language:
English