liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Penetration of alkali atoms throughout a graphene membrane: theoretical modeling
Korea Institute Adv Study.
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.
2012 (English)In: NANOSCALE, ISSN 2040-3364, Vol. 4, no 5, 1749-1753 p.Article in journal (Refereed) Published
Abstract [en]

Theoretical studies of penetration of various alkali atoms (Li, Na, Rb, Cs) throughout a graphene membrane grown on a silicon carbide substrate are reported and compared with recent experimental results. Results of first principles modeling demonstrate a rather low (about 0.8 eV) energy barrier for the formation of temporary defects in the carbon layer required for the penetration of Li at a high concentration of adatoms, a higher (about 2 eV) barrier for Na, and barriers above 4 eV for Rb and Cs. Experiments prove migration of lithium adatoms from the graphene surface to the buffer layer and SiC substrate at room temperature, sodium at 100 degrees C and impenetrability of the graphene membrane for Rb and Cs. Differences between epitaxial and free-standing graphene for the penetration of alkali ions are also discussed.

Place, publisher, year, edition, pages
Royal Society of Chemistry , 2012. Vol. 4, no 5, 1749-1753 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-75729DOI: 10.1039/c2nr11892kISI: 000300433700055OAI: diva2:508703
Funding Agencies|European Science Foundation||Euro-GRAPHENE||EU||Available from: 2012-03-09 Created: 2012-03-09 Last updated: 2012-03-09

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Virojanadara, Chariya
By organisation
Semiconductor MaterialsThe Institute of Technology
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 36 hits
ReferencesLink to record
Permanent link

Direct link