Quantum dot behavior in graphene nanoconstrictions.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 19099454.
- Also identified by DOI 10.1021/nl803291b.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Graphene nanoribbons display an imperfectly understood transport gap. We measure transport through nanoribbon devices of several lengths. In long (>/=250 nm) nanoribbons we observe transport through multiple quantum dots in series, while shorter (</=60 nm) constrictions display behavior characteristic of single and double quantum dots. New measurements indicate that dot size may scale with constriction width. We propose a model where transport occurs through quantum dots that are nucleated by background disorder potential in the presence of a confinement gap.
Medical subject headings
- Crystallization
- Graphite
- Models, Chemical
- Nanostructures
- Nanotechnology
- Quantum Dots