Quantification of surface Li in 16.4% CuLi alloys by direct recoil and Auger analysis of element specific chemisorption complexes

1 May 1988

journal article
Published by American Vacuum Society in Journal of Vacuum Science & Technology A

Vol. 6 (3) , 2073-2076
https://doi.org/10.1116/1.575606

Abstract

Methoxyl carbon and oxygen are shown to specifically add to the lithium fraction of a CuLi surface exposed to methanol. The lithium surface fraction is determined by direct recoil spectroscopic (DRS) measurement of the H, C, and O added to the surface by methanol exposure and by subsequent comparison to the amounts of C, O, and metal determined by Auger electron spectroscopy (AES) or x-ray photoelectron spectroscopy (XPS). Direct determination of surface Li by AES or XPS is complicated by relatively large sampling depths (5 or 20 Å). The indirect determination of surface Li by methanol chemisorption/AES has been used to calibrate the sensitivity of 5-keV K+ DRS for lithium.

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