PORTO @ 
Archivio Istituzionale della Ricerca
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishWe show that the Raman spectrum of graphene is sensitive to the surface chemistry of the substrate where the atomic plane is deposited. Two types of functionalized SiO 2 surface are experimentally compared: OH-terminated and NH 2 -terminated. In the case of NH 2 -terminated surface, the graphene Raman bands are significantly redshifted with respect to the peaks observed on the hydroxylated surface. The observed phonon softening can be ascribed to a biaxial strain induced into graphene by its interaction with the substrate. Therefore, the control of the substrate surface chemistry may be envisaged as a route to graphene strain engineering.
Graphene strain tuning by control of the substrate surface chemistry / Bruna M.; Vaira A.; Battiato A.; Vittone E.; Borini S.. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 97(2010).
| Titolo: | Graphene strain tuning by control of the substrate surface chemistry | |
| Autori: | ||
| Data di pubblicazione: | 2010 | |
| Rivista: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1063/1.3463460 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/11583/2461182
Copyright © 2021