Abstract

We report on a study of copper-induced IR absorption bands associated with intercalation of copper into graphite-like clusters (GLC) in DLC. A collection of spectral data is presented to illustrate the phenomenology of the copper-carbon interaction. Thermal annealing in vacuum reduces initially the intensity of the copper-born bands, which then exhibits a tendency for the starting value to be restored at room temperature if the copper concentration does not exceed 15%. The changes are reversible to a lesser extent at higher annealing temperatures and concentrations of copper.

© 1995 Optical Society of America