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Ellipsometric investigation of the intercalation threshold in the graphite and bromine system

✍ Scribed by J.D. Hibbs; D.A. Young

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 514 KB
Volume: 53
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(78)85416-5

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✦ Synopsis

T&e adsorption of bromine onto the basal (0001) surface of highly oriented pyrolytic pphite is studied as a function of pressure at 25°C by au ellipsometric technique. Below the intercalation threshold, the extend of adsorption is given direct!y by-variations in P, in tan ti e.up(iA) = rp/rs, svhi!e I& remains constant. At the threshold (20 torr Brz) $ falk steeply because ihtercalation here causes a discontinuous change in the substrate optical constants R and k. Reasons are given for supposing

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