Abstract
We present measurements of electron stimulated desorption (ESD) yields of D −, obtained from sub-monolayer amounts of C 2D 6 physisorbed on rare gas substrates; the latter consisting of alternating layers of Xe and Kr adsorbed at 20 K on Pt. Negatively charged excitons (NCE), for example, Xe∗ − or Kr∗ −, which are produced by electron impact, may couple to dissociative anion states of C 2D 6, resulting in sharp resonance enhancements in the D − ESD yields. Our measurements suggest that resonant diffusion of the Xe NCEs can be restricted to a single Xe layer, by placing a Kr multilayer spacer between the Xe and the metal substrate. This is attributed to the 1.85 eV insulating band-gap difference at the XeKr interface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
