Dynamics of Li deposition on epitaxial graphene/Ru(0001) islands
Li metal has been deposited on the surface of a Ru(0001) single crystal containing patches of monolayer-thick epitaxial graphene islands. The use of low-energy electron microscopy and diffraction allowed us to in situ monitor the process by measuring the local work function as well as to study the s...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/71600 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/71600 |
| Access Level: | acceso abierto |
| Palabra clave: | 538.9 Electronic-structure charge-transfer Work function Lithium-ion Graphene Graphite Intercalation Adsorption Density energy Li deposition Epitaxial graphene on Ru(0001) Work function measurement Low-Energy Electron Microscopy Photoemission electron microscopy Real -time surface dynamics Física de materiales Física del estado sólido 2211 Física del Estado Sólido |
| Sumario: | Li metal has been deposited on the surface of a Ru(0001) single crystal containing patches of monolayer-thick epitaxial graphene islands. The use of low-energy electron microscopy and diffraction allowed us to in situ monitor the process by measuring the local work function as well as to study the system in real and reciprocal space, comparing the changes taking place on the graphene with those on the bare Ru(0001) surface. It is found that Li deposition decreases the work function of the graphene islands but to a much smaller degree than of the Ru(0001) surface, as corresponds to its intercalation below the graphene overlayer. Finally, the diffusion process of Li out of the graphene islands has been monitored by photoelectron microscopy using a visible-light laser. |
|---|