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XPS Identification of Al-PVA Complex

Published online by Cambridge University Press:  21 February 2011

S. Akhter ,
S.K. Jo ,
X.-L. Zhou  and
J.M. White
S. Akhter
Affiliation:
Center for Materials Chemistry and Dept. of Chemistry, University of Texas, Austin, Texas 78712, USA
S.K. Jo
Affiliation:
Center for Materials Chemistry and Dept. of Chemistry, University of Texas, Austin, Texas 78712, USA
X.-L. Zhou
Affiliation:
Center for Materials Chemistry and Dept. of Chemistry, University of Texas, Austin, Texas 78712, USA
J.M. White
Affiliation:
Center for Materials Chemistry and Dept. of Chemistry, University of Texas, Austin, Texas 78712, USA
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Abstract

Aluminum was deposited on a polyvinyl alcohol film surface by reaction with trimethyl aluminum at 300 K. XPS analysis indicated a carbon free deposition of a monolayer of Al. The Al forms an oxy-carbide complex, AlOC, which exhibits a stoichiometry of 1:1:1 for Al, O and C. Within this complex Al is bonded to both C and O resulting in the appearance of low binding energy peaks in C(ls) and O(ls) spectra. The complex is oriented such that Al forms the outer-most layer. The Al modified surface was hydrophobic compared to the hydrophilic PVA. A reaction mechanism is proposed based on XPS and mass spectrometric data.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 154: Symposium K – Electronic Packaging Materials Science IV , 1989 , 241
Copyright
Copyright © Materials Research Society 1989

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