Details

Autor(en) / Beteiligte

• Vo, Timothy H
• Shekhirev, Mikhail
• Kunkel, Donna A
• Morton, Martha D
• Berglund, Eric
• Kong, Lingmei
• Wilson, Peter M
• Dowben, Peter A
• Enders, Axel
• Sinitskii, Alexander

Titel

Large-scale solution synthesis of narrow graphene nanoribbons

Ist Teil von

• Nature communications, 2014-02, Vol.5, p.3189-3189

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• According to theoretical studies, narrow graphene nanoribbons with atomically precise armchair edges and widths of <2 nm have a bandgap comparable to that in silicon (1.1 eV), which makes them potentially promising for logic applications. Different top-down fabrication approaches typically yield ribbons with width >10 nm and have limited control over their edge structure. Here we demonstrate a novel bottom-up approach that yields gram quantities of high-aspect-ratio graphene nanoribbons, which are only ~1 nm wide and have atomically smooth armchair edges. These ribbons are shown to have a large electronic bandgap of ~1.3 eV, which is significantly higher than any value reported so far in experimental studies of graphene nanoribbons prepared by top-down approaches. These synthetic ribbons could have lengths of >100 nm and self-assemble in highly ordered few-micrometer-long 'nanobelts' that can be visualized by conventional microscopy techniques, and potentially used for the fabrication of electronic devices.